{"id":54356,"date":"2026-04-21T19:57:03","date_gmt":"2026-04-21T12:57:03","guid":{"rendered":"https:\/\/coffeefactz.com\/?p=54356"},"modified":"2026-09-11T20:50:43","modified_gmt":"2026-09-11T13:50:43","slug":"nuoc-pha-ca-phe-drip-can-bang-khoang-chat-khu-clo","status":"publish","type":"post","link":"https:\/\/coffeefactz.com\/vi\/nuoc-pha-ca-phe-drip-can-bang-khoang-chat-khu-clo\/","title":{"rendered":"N\u01b0\u1edbc Pha C\u00e0 Ph\u00ea Drip: C\u00e2n B\u1eb1ng Kho\u00e1ng Ch\u1ea5t V\u00e0 Kh\u1eed Clo T\u1ed1i \u01afu H\u01b0\u01a1ng V\u1ecb Ra Sao"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">N\u01b0\u1edbc pha c\u00e0 ph\u00ea drip chi ph\u1ed1i to\u00e0n b\u1ed9 quy lu\u1eadt v\u1eadt l\u00fd c\u1ee7a qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t. T\u00f4i th\u1ea5y b\u1ea1n th\u01b0\u1eddng ph\u1ea3i \u0111au \u0111\u1ea7u v\u00ec h\u01b0\u01a1ng v\u1ecb c\u00e0 ph\u00ea tr\u1ed3i s\u1ee5t th\u1ea5t th\u01b0\u1eddng ch\u1ec9 b\u1edfi d\u01b0 l\u01b0\u1ee3ng clo hay l\u01b0\u1ee3ng kho\u00e1ng ch\u1ea5t m\u1ea5t c\u00e2n b\u1eb1ng \u0111ang \u00e2m th\u1ea7m ph\u00e1 ho\u1ea1i m\u1ebb pha. Ch\u00fang ta hay xem nh\u1eb9 ch\u1ea5t l\u1ecfng n\u00e0y nh\u01b0 m\u1ed9t dung m\u00f4i th\u1ee5 \u0111\u1ed9ng, nh\u01b0ng n\u00f3 \u0111\u00f2i h\u1ecfi n\u1ed3ng \u0111\u1ed9 TDS chu\u1ea9n x\u00e1c \u0111\u1ec3 gi\u1ea3i ph\u00f3ng tr\u1ecdn v\u1eb9n ti\u1ec1m n\u0103ng c\u1ee7a h\u1ea1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n th\u1ea5u hi\u1ec3u nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 thay v\u00ec ch\u1ec9 bi\u1ebft ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng g\u00f3i kho\u00e1ng b\u00e1n s\u1eb5n \u0111\u1eaft \u0111\u1ecf. C\u00e1c c\u1ea9m nang ngo\u00e0i kia th\u01b0\u1eddng b\u1ecf qua b\u1ea3n ch\u1ea5t h\u00f3a h\u1ecdc, khi\u1ebfn b\u1ea1n t\u1ed1n ti\u1ec1n v\u00f4 \u00edch. B\u1eb1ng c\u00e1ch l\u00e0m ch\u1ee7 c\u00e1c c\u01a1 ch\u1ebf n\u1ec1n t\u1ea3ng n\u00e0y, b\u1ea1n s\u1ebd t\u1ef1 tay thi\u1ebft k\u1ebf n\u00ean c\u00f4ng th\u1ee9c n\u01b0\u1edbc t\u1ed1i \u01b0u thay v\u00ec r\u1eadp khu\u00f4n theo h\u01b0\u1edbng d\u1eabn chung chung. B\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c n\u0103ng l\u1ef1c t\u1ef1 m\u00ecnh ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c ngay l\u1eadp t\u1ee9c m\u1ecdi s\u1ef1 c\u1ed1 chi\u1ebft xu\u1ea5t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">N\u01b0\u1edbc Chi\u1ebfm T\u1edbi 98% T\u00e1ch C\u00e0 Ph\u00ea Drip C\u1ee7a B\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><code>N\u01b0\u1edbc s\u1ea1ch<\/code> chi\u1ebfm t\u1edbi 98% th\u00e0nh ph\u1ea9m sau khi <code>pha<\/code>, do \u0111\u00f3 h\u00f3a h\u1ecdc c\u1ee7a <code>n\u01b0\u1edbc m\u00e1y<\/code> s\u1ebd quy\u1ebft \u0111\u1ecbnh c\u00e1ch c\u00e1c h\u1ee3p ch\u1ea5t h\u00f2a tan trong <code>c\u00e0 ph\u00ea<\/code> \u0111\u01b0\u1ee3c chi\u1ebft xu\u1ea5t v\u00e0 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi ch\u1ec9 s\u1ed1 <code>TDS<\/code>. Ch\u00fang ta hay \u0111\u1ed5 l\u1ed7i cho h\u1ea1t c\u00e0 ph\u00ea m\u1ed7i khi t\u00e1ch c\u00e0 ph\u00ea c\u00f3 v\u1ecb k\u1ef3 l\u1ea1, nh\u01b0ng th\u1ef1c ch\u1ea5t dung m\u00f4i m\u1edbi l\u00e0 th\u1ee9 g\u00e1nh v\u00e1c ph\u1ea7n vi\u1ec7c n\u1eb7ng n\u1ec1 nh\u1ea5t. Ch\u1ec9 m\u1ed9t sai l\u1ec7ch nh\u1ecf trong th\u00e0nh ph\u1ea7n n\u01b0\u1edbc c\u0169ng t\u1ea1o n\u00ean s\u1ef1 thay \u0111\u1ed5i r\u00f5 r\u1ec7t v\u1ec1 \u0111\u1ed9 ng\u1ecdt v\u00e0 \u0111\u1ed9 trong tr\u1ebbo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ch\u00fang ta ph\u1edbt l\u1edd n\u1ec1n t\u1ea3ng ch\u1ea5t l\u1ecfng n\u00e0y, ch\u00fang ta \u0111\u00e3 \u0111\u1ec3 nh\u1eefng ion kho\u00e1ng v\u00f4 h\u00ecnh c\u01b0\u1edbp \u0111i h\u01b0\u01a1ng v\u1ecb tr\u01b0\u1edbc khi h\u1ea1t c\u00e0 ph\u00ea k\u1ecbp t\u1ecfa s\u00e1ng. B\u1ea1n c\u00f3 th\u1ec3 chi r\u1ea5t nhi\u1ec1u ti\u1ec1n mua nh\u1eefng g\u00f3i h\u1ea1t \u0111\u1eaft \u0111\u1ecf, nh\u01b0ng ngu\u1ed3n <code>n\u01b0\u1edbc pha c\u00e0 ph\u00ea drip<\/code> thi\u1ebfu \u1ed5n \u0111\u1ecbnh s\u1ebd bi\u1ebfn m\u1ebb rang h\u1ea3o h\u1ea1ng th\u00e0nh m\u1ed9t tr\u1ea3i nghi\u1ec7m nh\u1ea1t nh\u1ebdo ho\u1eb7c chua \u0111\u00f3i v\u1ecb. \u0110\u1ec3 hi\u1ec3u v\u00ec sao \u0111i\u1ec1u n\u00e0y x\u1ea3y ra, ch\u00fang ta c\u1ea7n xem x\u00e9t d\u00f2ng n\u01b0\u1edbc \u0111ang th\u1ef1c s\u1ef1 l\u00e0m g\u00ec b\u00ean trong b\u00ecnh pha.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hi\u1ec7u su\u1ea5t chi\u1ebft xu\u1ea5t:<\/strong> <code>N\u01b0\u1edbc<\/code> \u0111\u00f3ng vai tr\u00f2 l\u00e0 dung m\u00f4i h\u00f2a tan v\u00e0 k\u00e9o c\u00e1c h\u1ee3p ch\u1ea5t h\u01b0\u01a1ng v\u1ecb th\u01a1m ngon ra kh\u1ecfi b\u1ed9t <code>c\u00e0 ph\u00ea<\/code>.<\/li>\n\n\n\n<li><strong>H\u1ed3 s\u01a1 h\u01b0\u01a1ng v\u1ecb:<\/strong> H\u00e0m l\u01b0\u1ee3ng kho\u00e1ng ch\u1ea5t tr\u1ef1c ti\u1ebfp \u0111\u1ecbnh h\u00ecnh \u0111\u1ed9 chua s\u00e1ng, th\u1ec3 ch\u1ea5t (body) v\u00e0 \u0111\u1ed9 trong tr\u1ebbo c\u1ee7a t\u00e1ch c\u00e0 ph\u00ea cu\u1ed1i c\u00f9ng.<\/li>\n\n\n\n<li><strong>T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong> Nh\u1eefng thay \u0111\u1ed5i nh\u1ecf trong th\u00e0nh ph\u1ea7n n\u01b0\u1edbc s\u1ebd t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t h\u01b0\u01a1ng v\u1ecb r\u00f5 r\u1ec7t sau m\u1ed7i l\u1ea7n b\u1ea1n <code>pha ch\u1ebf<\/code>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nghi\u00ean c\u1ee9u khoa h\u1ecdc x\u00e1c nh\u1eadn r\u1eb1ng s\u1ef1 c\u00e2n b\u1eb1ng kho\u00e1ng ch\u1ea5t th\u01b0\u1eddng c\u00f3 s\u1ee9c n\u1eb7ng v\u01b0\u1ee3t tr\u1ed9i h\u01a1n \u0111\u1ed9 axit khi \u0111\u00e1nh gi\u00e1 v\u1ec1 m\u1eb7t c\u1ea3m quan. <a href=\"https:\/\/sca.coffee\/sca-news\/25\/issue-9\/english\/water-and-coffee-acidity-how-to-adapt-your-water-for-different-extraction-methods-25-magazine-issue-9\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>Ti\u1ebfn s\u0129 Marco Wellinger, nh\u00e0 nghi\u00ean c\u1ee9u c\u00e0 ph\u00ea<\/strong><\/u><\/a> chuy\u00ean ng\u00e0nh h\u00f3a h\u1ecdc v\u00e0 ph\u00e2n t\u00edch c\u1ea3m quan t\u1ea1i Vi\u1ec7n \u0110\u1ed5i m\u1edbi Th\u1ef1c ph\u1ea9m v\u00e0 \u0110\u1ed3 u\u1ed1ng ZHAW, nh\u1ea5n m\u1ea1nh \u0111\u1ed9ng l\u1ef1c \u0111\u1eb7c th\u00f9 n\u00e0y:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p class=\"wp-block-paragraph\">&#8220;M\u1edf r\u1ed9ng logic t\u01b0\u01a1ng t\u1ef1 cho n\u01b0\u1edbc v\u00e0 c\u00e0 ph\u00ea, t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9 ki\u1ec1m (alkalinity) cao h\u01a1n g\u1ea5p v\u00e0i tr\u0103m l\u1ea7n so v\u1edbi \u0111\u1ed9 pH \u0111\u1ed1i v\u1edbi \u0111\u1ed9 chua cu\u1ed1i c\u00f9ng c\u1ee7a th\u1ee9c u\u1ed1ng, mi\u1ec5n l\u00e0 \u0111\u1ed9 pH \u1edf m\u1ee9c g\u1ea7n trung t\u00ednh (6\u20138) v\u00e0 \u0111\u1ed9 ki\u1ec1m \u0111\u1ee7 cao (tr\u00ean 20 ppm CaCO3).&#8221;<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn \u0111\u1ecbnh n\u00e0y ch\u1ee9ng minh v\u00ec sao vi\u1ec7c c\u00e2n b\u1eb1ng c\u00e1c ion kho\u00e1ng quan tr\u1ecdng h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ch\u1ec9 nh\u00ecn v\u00e0o \u0111\u1ed9 pH. Gi\u1edd \u0111\u00e2y khi \u0111\u00e3 bi\u1ebft n\u01b0\u1edbc l\u00e0 nh\u00e2n v\u1eadt ch\u00ednh, ch\u00fang ta c\u1ea7n \u0111i\u1ec3m m\u1eb7t nh\u1eefng kho\u00e1ng ch\u1ea5t c\u1ee5 th\u1ec3 \u0111ang d\u1eabn d\u1eaft cu\u1ed9c ch\u01a1i.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Kho\u00e1ng Ch\u1ea5t V\u00e0 Clo Ki\u1ec3m So\u00e1t H\u01b0\u01a1ng V\u1ecb C\u00e0 Ph\u00ea Ra Sao?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kho\u00e1ng ch\u1ea5t h\u00f2a tan nh\u01b0 n\u1ed3ng \u0111\u1ed9 magie, canxi v\u00e0 bicacbonat s\u1ebd li\u00ean k\u1ebft c\u00f3 ch\u1ecdn l\u1ecdc v\u1edbi t\u1eebng h\u1ee3p ch\u1ea5t h\u01b0\u01a1ng v\u1ecb, trong khi d\u01b0 l\u01b0\u1ee3ng clo l\u1ea1i ch\u1ee7 \u0111\u1ed9ng t\u00e0n ph\u00e1 \u0111\u1ed9 trong tr\u1ebbo v\u00e0 h\u01b0\u01a1ng th\u01a1m tinh t\u1ebf. Ngu\u1ed3n n\u01b0\u1edbc pha c\u00e0 ph\u00ea drip t\u1ed1i \u01b0u d\u1ef1a tr\u00ean s\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 kh\u1eed clo v\u00e0 chi\u1ebft xu\u1ea5t \u0111\u00fang \u0111i\u1ec7u. Ch\u00fang ta c\u1ea7n lo\u1ea1i b\u1ecf s\u1ea1ch clo tr\u01b0\u1edbc, sau \u0111\u00f3 m\u1edbi tinh ch\u1ec9nh kho\u00e1ng ch\u1ea5t \u0111\u1ec3 t\u00e1ch c\u00e0 ph\u00ea tr\u00f2n v\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 L\u1ecdc Than Ho\u1ea1t T\u00ednh \u0110\u1ea3m B\u1ea3o Hi\u1ec7u Qu\u1ea3 Kh\u1eed Clo Nh\u01b0 Th\u1ebf N\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1eed clo hi\u1ec7u qu\u1ea3 \u0111\u00f2i h\u1ecfi c\u00f4ng ngh\u1ec7 l\u1ecdc than ho\u1ea1t t\u00ednh, b\u1edfi b\u00ecnh l\u1ecdc Brita v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng t\u01b0\u01a1ng t\u1ef1 c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 tri\u1ec7t \u0111\u1ec3 d\u01b0 l\u01b0\u1ee3ng ch\u1ea5t kh\u1eed tr\u00f9ng tr\u01b0\u1edbc khi pha. H\u00e0m l\u01b0\u1ee3ng clo trong n\u01b0\u1edbc m\u00e1y ph\u1ea3i \u0111\u01b0a v\u1ec1 m\u1ee9c b\u1eb1ng kh\u00f4ng, v\u00ec n\u00f3 t\u1ea1o ra m\u00f9i v\u1ecb kim lo\u1ea1i ho\u1eb7c h\u00f3a ch\u1ea5t n\u1ed3ng n\u1eb7c l\u1ea5n \u00e1t nh\u1eefng n\u1ed1t h\u01b0\u01a1ng thanh nh\u00e3. Ngay c\u1ea3 n\u1ed3ng \u0111\u1ed9 c\u1ef1c th\u1ea5p c\u0169ng ph\u00e1 h\u1ecfng tr\u1ea3i nghi\u1ec7m, \u0111\u00f3 l\u00e0 l\u00fd do v\u00ec sao m\u1ecdi ng\u01b0\u1eddi l\u1ea1i tin t\u01b0\u1edfng c\u00e1c h\u1ec7 th\u1ed1ng l\u1ecdc \u0111\u1ebfn v\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u1eef li\u1ec7u th\u1ef1c t\u1ebf:<\/strong> T\u1ef7 l\u1ec7 h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc \u0111\u00f4 th\u1ecb t\u1ea1i Hoa K\u1ef3 ph\u00e1t hi\u1ec7n d\u01b0 l\u01b0\u1ee3ng clo v\u00e0o n\u0103m 2023. D\u1eef li\u1ec7u gi\u00e1m s\u00e1t n\u01b0\u1edbc u\u1ed1ng g\u1ea7n \u0111\u00e2y c\u1ee7a EPA cho th\u1ea5y <strong>kho\u1ea3ng 94% h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc c\u00f4ng c\u1ed9ng<\/strong> ghi nh\u1eadn <a href=\"https:\/\/www.epa.gov\/dwregdev\/2023-drinking-water-data-tables-chlorine-residual\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>d\u01b0 l\u01b0\u1ee3ng clo ho\u1eb7c chloramine c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c<\/strong><\/u><\/a> v\u00e0o n\u0103m 2023, \u0111\u00e1p \u1ee9ng quy \u0111\u1ecbnh li\u00ean bang r\u1eb1ng \u00edt nh\u1ea5t 95% m\u1eabu x\u00e9t nghi\u1ec7m h\u00e0ng th\u00e1ng ph\u1ea3i ch\u1ee9a ch\u1ea5t kh\u1eed tr\u00f9ng. N\u1ed3ng \u0111\u1ed9 t\u1ed3n d\u01b0 trung b\u00ecnh to\u00e0n qu\u1ed1c l\u00e0 kho\u1ea3ng <strong>1,1 ppm<\/strong>. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng minh r\u1eb1ng clo xu\u1ea5t hi\u1ec7n g\u1ea7n nh\u01b0 \u1edf m\u1ecdi ngu\u1ed3n n\u01b0\u1edbc m\u00e1y \u0111\u00f4 th\u1ecb, khi\u1ebfn vi\u1ec7c lo\u1ea1i b\u1ecf n\u00f3 tr\u1edf th\u00e0nh \u0111i\u1ec1u ki\u1ec7n b\u1eaft bu\u1ed9c \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u01b0\u01a1ng v\u1ecb c\u00e0 ph\u00ea.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec g\u1ea7n nh\u01b0 m\u1ecdi ngu\u1ed3n c\u1ea5p n\u01b0\u1edbc m\u00e1y \u0111\u1ec1u ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng clo \u0111o \u0111\u1ebfm \u0111\u01b0\u1ee3c, vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t b\u1ed9 l\u1ecdc than ho\u1ea1t t\u00ednh \u0111\u01a1n gi\u1ea3n l\u00e0 c\u00e1ch \u0111\u00e1ng tin c\u1eady nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u01b0\u01a1ng v\u1ecb. T\u00f4i khuy\u00ean b\u1ea1n n\u00ean l\u1ecdc n\u01b0\u1edbc qua b\u00ecnh Brita ho\u1eb7c b\u1ea5t k\u1ef3 b\u1ed9 l\u1ecdc than ho\u1ea1t t\u00ednh \u0111\u1ea1t ch\u1ee9ng nh\u1eadn n\u00e0o tr\u01b0\u1edbc khi \u0111un n\u01b0\u1edbc pha \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng m\u1ed9t ph\u00e2n t\u1eed h\u00f3a ch\u1ea5t n\u00e0o l\u1ecdt v\u00e0o t\u00e1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 \u0110\u00f3ng G\u00f3p C\u1ee7a T\u1eebng Lo\u1ea1i Kho\u00e1ng \u0110\u1ecbnh H\u00ecnh \u0110\u1ed9 Chua S\u00e1ng V\u00e0 Th\u1ec3 Ch\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 g\u00f3p m\u1eb7t c\u1ee7a t\u1eebng kho\u00e1ng ch\u1ea5t c\u1ee5 th\u1ec3 nh\u01b0 n\u1ed3ng \u0111\u1ed9 magie, canxi v\u00e0 bicacbonat tr\u1ef1c ti\u1ebfp \u0111i\u1ec1u ch\u1ec9nh ch\u1ec9 s\u1ed1 KH, \u0111\u1ed9 pH v\u00e0 \u0111\u1ed9 \u0111\u1eadm chi\u1ebft xu\u1ea5t trong qu\u00e1 tr\u00ecnh pha. Magie t\u0103ng c\u01b0\u1eddng c\u00e1c n\u1ed1t h\u01b0\u01a1ng hoa qu\u1ea3 t\u01b0\u01a1i s\u00e1ng, s\u1ed1ng \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t dung m\u00f4i m\u1ea1nh m\u1ebd cu\u1ed1n theo c\u00e1c h\u1ee3p ch\u1ea5t h\u01b0\u01a1ng v\u1ecb. Canxi \u0111\u00f3ng g\u00f3p v\u00e0o th\u1ec3 ch\u1ea5t (body), \u0111\u1ed9 ng\u1ecdt v\u00e0 c\u1ea3m gi\u00e1c trong khoang mi\u1ec7ng (mouthfeel), mang l\u1ea1i \u0111\u1ed9 \u0111\u1ea7m \u1ea5m cho t\u00e1ch c\u00e0 ph\u00ea tr\u00ean \u0111\u1ea7u l\u01b0\u1ee1i c\u1ee7a b\u1ea1n. Bicacbonat ki\u1ec3m so\u00e1t \u0111\u1ed9 trong tr\u1ebbo nh\u1edd kh\u1ea3 n\u0103ng \u0111\u1ec7m pH; qu\u00e1 nhi\u1ec1u bicacbonat s\u1ebd l\u00e0m c\u00f9n m\u00f2n v\u1ecb qu\u1ea3, trong khi qu\u00e1 \u00edt l\u1ea1i khi\u1ebfn t\u00e1ch c\u00e0 ph\u00ea chua g\u1eaft ho\u1eb7c r\u1ed7ng tu\u1ebfch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nghi\u00ean c\u1ee9u khoa h\u1ecdc x\u00e1c th\u1ef1c ph\u1ea3n \u1ee9ng sinh h\u00f3a n\u00e0y:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1eb1ng ch\u1ee9ng th\u1ef1c nghi\u1ec7m:<\/strong> Nghi\u00ean c\u1ee9u ch\u1ee9ng minh r\u1eb1ng ion magie (Mg\u00b2\u207a) s\u1edf h\u1eefu n\u0103ng l\u01b0\u1ee3ng li\u00ean k\u1ebft cao nh\u1ea5t trong s\u1ed1 c\u00e1c kho\u00e1ng ch\u1ea5t pha c\u00e0 ph\u00ea th\u00f4ng d\u1ee5ng, \u0111\u00f3ng vai tr\u00f2 l\u00e0 dung m\u00f4i b\u00f3c t\u00e1ch m\u1ea1nh nh\u1ea5t gi\u00fap khu\u1ebfch \u0111\u1ea1i \u0111\u1ed9 chua s\u00e1ng v\u00e0 t\u00ednh ph\u1ee9c h\u1ee3p trong t\u00e1ch; trong khi ion canxi (Ca\u00b2\u207a) c\u00f3 n\u0103ng l\u01b0\u1ee3ng li\u00ean k\u1ebft th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat v\u00e0 ch\u1ee7 y\u1ebfu \u0111\u00f3ng g\u00f3p v\u00e0o th\u1ec3 ch\u1ea5t v\u00e0 c\u1ea3m gi\u00e1c mi\u1ec7ng. Ion bicacbonat (HCO\u2083\u207b) ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ec7m pH, v\u1edbi n\u1ed3ng \u0111\u1ed9 th\u1ea5p s\u1ebd sinh ra v\u1ecb chua s\u1eafc nh\u1ecdn v\u00e0 n\u1ed3ng \u0111\u1ed9 cao s\u1ebd t\u1ea1o ra <a href=\"https:\/\/www.researchgate.net\/publication\/262111309_The_Role_of_Dissolved_Cations_in_Coffee_Extraction#:~:text=Citations%20%2847%29-\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>h\u1ed3 s\u01a1 h\u01b0\u01a1ng v\u1ecb b\u1eb9t, ch\u00e1t b\u1ed9t nh\u01b0 ph\u1ea5n<\/strong><\/u><\/a>. V\u1ec1 m\u1eb7t \u0111\u1ecbnh l\u01b0\u1ee3ng, c\u00e1c t\u00e1c gi\u1ea3 \u0111\u1ec1 xu\u1ea5t th\u00e0nh ph\u1ea7n n\u01b0\u1edbc t\u1ed1i \u01b0u c\u00f3 t\u1ed5ng \u0111\u1ed9 c\u1ee9ng (t\u00ednh theo CaCO\u2083) v\u00e0 \u0111\u1ed9 ki\u1ec1m trong kho\u1ea3ng 40\u201375 ppm \u0111\u1ec3 c\u00e2n b\u1eb1ng h\u00e0i h\u00f2a gi\u1eefa hi\u1ec7u su\u1ea5t chi\u1ebft xu\u1ea5t v\u00e0 \u0111\u1ed9 trong tr\u1ebbo c\u1ea3m quan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 gi\u1edd \u0111\u00e2y b\u1ea1n \u0111\u00e3 th\u1ea5u hi\u1ec3u vai tr\u00f2 c\u1ee7a t\u1eebng kho\u00e1ng ch\u1ea5t, nhi\u1ec1u ng\u01b0\u1eddi pha ch\u1ebf v\u1eabn b\u1ecf l\u1ee1 c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o n\u00e0y. N\u01b0\u1edbc c\u1ea5t kh\u00f4ng h\u1ec1 nh\u1ea1t nh\u1ebdo b\u1ea9m sinh: khi \u0111\u01b0\u1ee3c t\u00e1i kho\u00e1ng h\u00f3a b\u1eb1ng h\u1ed7n h\u1ee3p mu\u1ed1i Epsom + baking soda \u0111\u01a1n gi\u1ea3n, n\u00f3 s\u1ebd kh\u00f4i ph\u1ee5c tr\u1ecdn v\u1eb9n \u0111\u1ed9 \u0111\u1eadm \u0111\u00e0 v\u00e0 v\u1ecb ng\u1ecdt. C\u00f4ng th\u1ee9c t\u1ef1 pha \u201cmu\u1ed1i Epsom + baking soda\u201d hi\u1ec7n th\u1ef1c h\u00f3a chu\u1ea9n x\u00e1c t\u1ef7 l\u1ec7 GH : KH l\u00e0 2 : 1 theo khuy\u1ebfn ngh\u1ecb c\u1ee7a SCA, mang \u0111\u1ebfn m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p v\u1eeba ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1eeba v\u1eefng v\u00e0ng c\u01a1 s\u1edf khoa h\u1ecdc \u0111\u1ec3 ch\u1ea1m t\u1edbi s\u1ef1 c\u00e2n b\u1eb1ng kho\u00e1ng t\u1ed1i \u01b0u. Ch\u00fang ta s\u1ebd c\u00f9ng xem c\u00e1ch t\u1ef1 pha ch\u1ebf \u1edf ph\u1ea7n ti\u1ebfp theo.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">H\u1ed3 S\u01a1 Kho\u00e1ng Ch\u1ea5t L\u00fd T\u01b0\u1edfng Cho N\u01b0\u1edbc Pha C\u00e0 Ph\u00ea Drip<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ed3 s\u01a1 kho\u00e1ng ch\u1ea5t chu\u1ea9n x\u00e1c quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t chi\u1ebft xu\u1ea5t b\u1eb1ng c\u00e1ch qu\u1ea3n l\u00fd c\u00e1c m\u1ee9c TDS, KH, \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u01b0\u1edbc, pH v\u00e0 clo \u0111\u1ec3 b\u1ea3o to\u00e0n tr\u1ecdn v\u1eb9n h\u01b0\u01a1ng v\u1ecb c\u1ee7a h\u1ea1t rang nh\u1ea1t (light roast). Ngu\u1ed3n n\u01b0\u1edbc pha c\u00e0 ph\u00ea drip t\u1ed1i \u01b0u v\u1eadn h\u00e0nh nh\u01b0 m\u1ed9t dung m\u00f4i l\u1ecfng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang bi\u1ec7t \u0111\u1ec3 t\u00f3m l\u1ea5y c\u00e1c ph\u00e2n t\u1eed h\u00f2a tan. Khi ch\u00fang ta \u0111i\u1ec1u ch\u1ec9nh nh\u1eefng ch\u1ec9 s\u1ed1 n\u00e0y, ch\u00fang ta \u0111ang ra l\u1ec7nh ch\u00ednh x\u00e1c cho dung m\u00f4i m\u1ee9c \u0111\u1ed9 m\u1ea1nh m\u1ebd c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u00f3c t\u00e1ch h\u01b0\u01a1ng v\u1ecb ra kh\u1ecfi b\u1ed9t c\u00e0 ph\u00ea.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Thi\u1ebft L\u1eadp M\u1ee5c Ti\u00eau TDS V\u00e0 \u0110\u1ed9 Ki\u1ec1m Cho N\u01b0\u1edbc C\u00e0 Ph\u00ea<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7p h\u1ed9i C\u00e0 ph\u00ea \u0110\u1eb7c s\u1ea3n (SCA) khuy\u1ebfn ngh\u1ecb ch\u00fang ta n\u00ean h\u01b0\u1edbng t\u1edbi t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan (TDS) v\u00e0o kho\u1ea3ng 150 ppm, d\u00f9 m\u1ee9c n\u1eb1m trong kho\u1ea3ng t\u1eeb 75 \u0111\u1ebfn 250 ppm v\u1eabn ho\u00e0n to\u00e0n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. V\u1ec1 \u0111\u1ed9 ki\u1ec1m, ch\u00fang ta nh\u1eafm t\u1edbi m\u1ee9c 40 ppm \u0111\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0m ch\u1ea5t \u0111\u1ec7m cho c\u00e1c axit trong c\u00e0 ph\u00ea, gi\u1eef ph\u1ea1m vi an to\u00e0n t\u1eeb 40 \u0111\u1ebfn 70 ppm. L\u1edbp \u0111\u1ec7m n\u00e0y ng\u0103n t\u00e1ch c\u00e0 ph\u00ea kh\u00f4ng b\u1ecb qu\u00e1 chua g\u1eaft hay qu\u00e1 b\u1eb9t nh\u1edd \u1ed5n \u0111\u1ecbnh \u0111\u1ed9 axit trong su\u1ed1t qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec Sao T\u1eebng C\u1ea5p \u0110\u1ed9 Rang L\u1ea1i C\u1ea7n Ngu\u1ed3n N\u01b0\u1edbc Kh\u00e1c Nhau?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5ng \u0111\u1ed9 c\u1ee9ng n\u00ean n\u1eb1m trong kho\u1ea3ng 17 \u0111\u1ebfn 85 mg\/L t\u00ednh theo \u0111\u01b0\u01a1ng l\u01b0\u1ee3ng canxi cacbonat. Ch\u00fang ta mu\u1ed1n d\u1ea3i pH duy tr\u00ec t\u1eeb 6,5 \u0111\u1ebfn 7,5, nh\u1eafm th\u1eb3ng v\u00e0o m\u1ee9c trung t\u00ednh 7,0. D\u01b0 l\u01b0\u1ee3ng clo b\u1eaft bu\u1ed9c ph\u1ea3i b\u1eb1ng 0 mg\/L v\u00ec n\u00f3 t\u1ea1o ra m\u00f9i thu\u1ed1c s\u00e1t tr\u00f9ng l\u1ea5n \u00e1t to\u00e0n b\u1ed9 h\u01b0\u01a1ng v\u1ecb th\u01a1m ngon kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u1ed1c ti\u00eau chu\u1ea9n n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi ph\u1ea7n l\u1edbn c\u00e1c c\u00e1ch pha, h\u1ea1t rang nh\u1ea1t (light roast) l\u1ea1i c\u1ea7n s\u1ef1 n\u00e2ng niu d\u1ecbu d\u00e0ng h\u01a1n. Nhi\u1ec1u barista ch\u1ee7 \u0111\u1ed9ng h\u1ea1 ch\u1ec9 s\u1ed1 TDS xu\u1ed1ng th\u1ea5p h\u01a1n (30\u201380 ppm) v\u00e0 gi\u1eef \u0111\u1ed9 ki\u1ec1m th\u1ea5p (15\u201320 ppm) \u0111\u1ec3 b\u1ea3o t\u1ed3n nh\u1eefng n\u1ed1t h\u01b0\u01a1ng hoa qu\u1ea3 tinh t\u1ebf m\u1ecfng manh. Ng\u01b0\u1ee3c l\u1ea1i, h\u1ea1t rang v\u1eeba v\u00e0 rang \u0111\u1eadm l\u1ea1i ch\u01b0a c\u00f3 m\u1ed9t chu\u1ea9n TDS th\u1ed1ng nh\u1ea5t, \u0111\u1ec3 ng\u1ecf kh\u00f4ng gian cho ng\u01b0\u1eddi pha t\u1ef1 do th\u1eed nghi\u1ec7m theo kh\u1ea9u v\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/perfectdailygrind.com\/2026\/03\/why-water-for-coffee-matters-more-than-ever\/\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>Charles Nick, nh\u00e0 s\u00e1ng l\u1eadp Third Wave Water<\/strong><\/u><\/a> chia s\u1ebb r\u1eb1ng \u0111\u1ed9 ki\u1ec1m n\u1eafm gi\u1eef vai tr\u00f2 c\u1ef1c k\u1ef3 kh\u00e1c bi\u1ec7t khi pha c\u00e1c d\u00f2ng h\u1ea1t rang \u0111\u1eadm:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t kho\u00e1ng ch\u1ea5t quan tr\u1ecdng nh\u1ea5t gi\u1eefa rang nh\u1ea1t v\u00e0 rang \u0111\u1eadm ch\u00ednh l\u00e0 ch\u1ec9 s\u1ed1 KH. &#8220;N\u00f3i m\u1ed9t c\u00e1ch t\u1ed5ng qu\u00e1t, v\u00e0 \u0111\u00e2y l\u00e0 ch\u00eca kh\u00f3a: b\u1ea1n s\u1ebd c\u1ea7n ngu\u1ed3n n\u01b0\u1edbc c\u00f3 t\u00ednh ki\u1ec1m cao h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e0 ph\u00ea rang \u0111\u1eadm \u0111\u1ec3 l\u00e0m m\u01b0\u1ee3t m\u00e0 h\u01b0\u01a1ng v\u1ecb v\u00e0 t\u00f4n b\u1eadt c\u00e1c n\u1ed1t h\u01b0\u01a1ng s\u00f4-c\u00f4-la, h\u1ea1t b\u00f9i ng\u1eady.&#8221;<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb g\u00f3c nh\u00ecn n\u00e0y, r\u00f5 r\u00e0ng vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 ki\u1ec1m l\u00e0 m\u1eaft x\u00edch thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ed3ng b\u1ed9 c\u00f4ng th\u1ee9c n\u01b0\u1edbc v\u1edbi \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 pH ph\u00f9 h\u1ee3p cho t\u1eebng c\u1ea5p \u0111\u1ed9 rang.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">So S\u00e1nh N\u01b0\u1edbc M\u00e1y V\u1edbi C\u00e1c L\u1ef1a Ch\u1ecdn N\u01b0\u1edbc \u0110\u00f3ng B\u00ecnh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c ngu\u1ed3n n\u01b0\u1edbc c\u1ee5 th\u1ec3<\/strong> bao g\u1ed3m n\u01b0\u1edbc m\u00e1y, n\u01b0\u1edbc qua b\u00ecnh l\u1ecdc Brita, h\u1ec7 th\u1ed1ng l\u1ecdc RO ho\u1eb7c c\u00e1c g\u00f3i kho\u00e1ng Third Wave Water. M\u1ed7i gi\u1ea3i ph\u00e1p l\u1ea1i \u0111\u1ecbnh \u0111o\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng chi\u1ebft xu\u1ea5t v\u00e0 chi ph\u00ed h\u00e0ng th\u00e1ng theo nh\u1eefng c\u00e1ch r\u1ea5t kh\u00e1c nhau. Ch\u00fang ta th\u01b0\u1eddng b\u1ecf qu\u00ean vi\u1ec7c nh\u1eefng l\u1ef1a ch\u1ecdn n\u00e0y \u0111\u1ecbnh h\u00ecnh t\u00e1ch c\u00e0 ph\u00ea drip ra sao. T\u00f4i hi\u1ec3u b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y cho\u00e1ng ng\u1ee3p v\u00ec th\u01b0\u01a1ng hi\u1ec7u n\u00e0o c\u0169ng t\u1ef1 x\u01b0ng l\u00e0 t\u1ed1t nh\u1ea5t, nh\u01b0ng ch\u00fang ta ch\u1ec9 c\u1ea7n nh\u00ecn v\u00e0o lo\u1ea1i kho\u00e1ng ch\u1ea5t n\u00e0o c\u00f2n \u1edf l\u1ea1i v\u00e0 th\u1ee9 g\u00ec b\u1ecb l\u1ecdc b\u1ecf. B\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc k\u1ef9 c\u00e1c \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m tr\u01b0\u1edbc khi r\u00f3t b\u1ea5t c\u1ee9 gi\u1ecdt n\u01b0\u1edbc n\u00e0o v\u00e0o b\u00ecnh pha.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c Ph\u01b0\u01a1ng Ph\u00e1p L\u1ecdc V\u00e0 L\u00e0m S\u1ea1ch: T\u1eeb Brita \u0110\u1ebfn H\u1ec7 Th\u1ed1ng RO<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1ecdc v\u00e0 tinh ch\u1ebf ti\u00eau chu\u1ea9n<\/strong> nh\u01b0 l\u00f5i l\u1ecdc than ho\u1ea1t t\u00ednh hay h\u1ec7 th\u1ed1ng l\u1ecdc RO \u0111\u1ec1u lo\u1ea1i b\u1ecf clo nh\u01b0ng l\u1ea1i t\u00e1c \u0111\u1ed9ng l\u00ean l\u01b0\u1ee3ng kho\u00e1ng ch\u1ea5t r\u1ea5t kh\u00e1c nhau. M\u1ed9t chi\u1ebfc b\u00ecnh l\u1ecdc Brita \u0111\u01a1n gi\u1ea3n ch\u1eb7n \u0111\u1ee9ng m\u00f9i v\u1ecb clo nh\u01b0ng gi\u1eef nguy\u00ean c\u00e1c kho\u00e1ng ch\u1ea5t t\u1ea1o \u0111\u1ed9 c\u1ee9ng. H\u1ec7 th\u1ed1ng th\u1ea9m th\u1ea5u ng\u01b0\u1ee3c RO th\u00ec b\u00f3c s\u1ea1ch m\u1ecdi th\u1ee9, \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c b\u1ea1n b\u1eaft bu\u1ed9c ph\u1ea3i b\u1ed5 sung kho\u00e1ng ch\u1ea5t tr\u1edf l\u1ea1i sau \u0111\u00f3. M\u1ed9t s\u1ed1 b\u00ecnh l\u1ecdc chuy\u00ean d\u1ee5ng cho ph\u00e9p b\u1ea1n tinh ch\u1ec9nh d\u1ef1a theo \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u01b0\u1edbc m\u00e1y gia \u0111\u00ecnh, trao cho b\u1ea1n quy\u1ec1n ki\u1ec3m so\u00e1t m\u00e0 kh\u00f4ng c\u1ea7n t\u1ed1n ti\u1ec1n mua b\u00ecnh n\u01b0\u1edbc m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00ecnh \u1ea3nh thi\u1ebft b\u1ecb d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda ch\u00ednh x\u00e1c qu\u00e1 tr\u00ecnh b\u00f3c t\u00e1ch n\u00e0y di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0o:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/5-stage-reverse-osmosis-water-filter-system-for-coffee-1.webp\" alt=\"5 stage reverse osmosis water filter system for coffee\" class=\"wp-image-48612\" title=\"\" srcset=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/5-stage-reverse-osmosis-water-filter-system-for-coffee-1.webp 1376w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/5-stage-reverse-osmosis-water-filter-system-for-coffee-1-300x167.webp 300w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/5-stage-reverse-osmosis-water-filter-system-for-coffee-1-1024x572.webp 1024w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/5-stage-reverse-osmosis-water-filter-system-for-coffee-1-768x429.webp 768w\" sizes=\"(max-width: 1376px) 100vw, 1376px\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chi Ph\u00ed V\u00e0 T\u00e1c \u0110\u1ed9ng M\u00f4i Tr\u01b0\u1eddng Nghi\u00eang V\u1ec1 Third Wave Water<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chi ph\u00ed th\u1ef1c t\u1ebf v\u00e0 t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng<\/strong> ho\u00e0n to\u00e0n nghi\u00eang v\u1ec1 gi\u1ea3i ph\u00e1p d\u00f9ng g\u00f3i kho\u00e1ng Third Wave Water so v\u1edbi vi\u1ec7c mua c\u00e1c b\u00ecnh n\u01b0\u1edbc kho\u00e1ng t\u1ef1 nhi\u00ean \u0111\u00f3ng chai nh\u01b0 Icelandic Glacial hay Mountain Valley. Mua c\u00e1c g\u00f3i kho\u00e1ng theo l\u00f4 c\u00f3 chi ph\u00ed tr\u00ean m\u1ed7i l\u00edt r\u1ebb h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c v\u00e1c nh\u1eefng b\u00ecnh nh\u1ef1a n\u1eb7ng tr\u1ecbch v\u1ec1 nh\u00e0. B\u1ea1n c\u0169ng t\u1ea1o ra \u00edt r\u00e1c th\u1ea3i h\u01a1n r\u1ea5t nhi\u1ec1u khi s\u1eed d\u1ee5ng b\u00ecnh ch\u1ee9a t\u00e1i s\u1eed d\u1ee5ng thay cho bao b\u00ec d\u00f9ng m\u1ed9t l\u1ea7n. \u0110\u1ed1i v\u1edbi h\u1ea1t rang nh\u1ea1t, m\u1ed9t chai n\u01b0\u1edbc kho\u00e1ng thi\u00ean nhi\u00ean nh\u1eb9 d\u01b0\u1edbi 100 ppm TDS l\u00e0 l\u1ef1a ch\u1ecdn r\u1ea5t \u1ed5n, nh\u01b0ng h\u00e3y tr\u00e1nh d\u00f9ng n\u01b0\u1edbc c\u1ea5t nguy\u00ean ch\u1ea5t tr\u1eeb phi b\u1ea1n \u0111\u00e3 b\u00f9 kho\u00e1ng cho n\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng ph\u00e2n t\u00edch d\u01b0\u1edbi \u0111\u00e2y ch\u1ec9 ra r\u00f5 nh\u1eefng \u0111\u00e1nh \u0111\u1ed5i l\u00e2u d\u00e0i:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Ngu\u1ed3n n\u01b0\u1edbc<\/th><th>Chi ph\u00ed tr\u00ean m\u1ed7i L\u00edt (USD)<\/th><th>Ch\u1ec9 s\u1ed1 TDS (ppm)<\/th><th>H\u00e0m l\u01b0\u1ee3ng kho\u00e1ng \/ \u0111\u1ed9 c\u1ee9ng* (mg\/L CaCO\u2083)<\/th><th>Kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf Clo<\/th><th>T\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng (\u0111\u00e1nh gi\u00e1 r\u00e1c th\u1ea3i nh\u1ef1a 1\u20135)<\/th><\/tr><\/thead><tbody><tr><td>N\u01b0\u1edbc m\u00e1y<\/td><td>0,001 \u2013 0,005 $<\/td><td>50\u2013250<\/td><td>30\u2013200 (t\u00f9y khu v\u1ef1c)<\/td><td>Kh\u00f4ng \u2020<\/td><td>1 (kh\u00f4ng r\u00e1c nh\u1ef1a)<\/td><\/tr><tr><td>N\u01b0\u1edbc l\u1ecdc (b\u00ecnh than ho\u1ea1t t\u00ednh)<\/td><td>0,02 \u2013 0,04 $<\/td><td>30\u2013150<\/td><td>20\u2013120<\/td><td>C\u00f3<\/td><td>2 (b\u00ecnh nh\u1ef1a t\u00e1i s\u1eed d\u1ee5ng)<\/td><\/tr><tr><td>Th\u1ea9m th\u1ea5u ng\u01b0\u1ee3c (m\u00e1y l\u1ecdc RO gia \u0111\u00ecnh)<\/td><td>0,04 \u2013 0,07 $<\/td><td>5\u201320<\/td><td>5\u201330<\/td><td>C\u00f3<\/td><td>3 (\u1ed1ng nh\u1ef1a, m\u00e0ng l\u1ecdc &#038; n\u01b0\u1edbc th\u1ea3i)<\/td><\/tr><tr><td>N\u01b0\u1edbc \u0111\u00f3ng chai (th\u01b0\u01a1ng hi\u1ec7u si\u00eau th\u1ecb)<\/td><td>0,80 \u2013 1,20 $<\/td><td>150\u2013300<\/td><td>80\u2013250<\/td><td>C\u00f3 (ph\u1ea7n l\u1edbn \u0111\u00e3 l\u1ecdc)<\/td><td>5 (chai nh\u1ef1a d\u00f9ng m\u1ed9t l\u1ea7n)<\/td><\/tr><tr><td>G\u00f3i kho\u00e1ng chuy\u00ean d\u1ee5ng (v\u00ed d\u1ee5 c\u00e1c g\u00f3i b\u1ed9t kho\u00e1ng c\u00e0 ph\u00ea)<\/td><td>0,10 \u2013 0,15 $ (m\u1ed7i l\u00edt khi h\u00f2a tan)<\/td><td>150\u2013250 (t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c)<\/td><td>120\u2013180 (t\u00f9y bi\u1ebfn \u0111\u01b0\u1ee3c)<\/td><td>C\u00f3 (g\u00f3i pha tr\u00ean n\u1ec1n n\u01b0\u1edbc tinh khi\u1ebft)<\/td><td>4 (g\u00f3i nh\u1ecf d\u00f9ng m\u1ed9t l\u1ea7n, \u00edt th\u1ec3 t\u00edch r\u00e1c h\u01a1n b\u00ecnh)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">* \u0110\u1ed9 c\u1ee9ng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb theo \u0111\u01b0\u01a1ng l\u01b0\u1ee3ng CaCO\u2083.<br>\u2020 H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 m\u00e1y n\u01b0\u1edbc \u0111\u00f4 th\u1ecb \u0111\u1ec1u ch\u00e2m clo; hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd ph\u1ee5 thu\u1ed9c v\u00e0o ngu\u1ed3n c\u1ea5p \u0111\u1ecba ph\u01b0\u01a1ng. (N\u1ebfu n\u01b0\u1edbc m\u00e1y s\u1eed d\u1ee5ng chloramine, b\u1ea1n b\u1eaft bu\u1ed9c ph\u1ea3i d\u00f9ng b\u1ed9 l\u1ecdc than x\u00fac t\u00e1c catalytic carbon \u0111\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef1 C\u00e2n B\u1eb1ng Kho\u00e1ng Ch\u1ea5t DIY C\u1ea3i Thi\u1ec7n N\u01b0\u1edbc Pha C\u00e0 Ph\u00ea Drip<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef1 pha ch\u1ebf kho\u00e1ng ch\u1ea5t DIY chu\u1ea9n x\u00e1c b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p mu\u1ed1i Epsom v\u00e0 baking soda gi\u00fap c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o c\u00e1c m\u1ee9c GH v\u00e0 KH. Ch\u00fang ta kh\u1edfi \u0111\u1ea7u b\u1eb1ng n\u01b0\u1edbc tinh khi\u1ebft b\u1edfi n\u00f3 thi\u1ebfu h\u1ee5t c\u00e1c kho\u00e1ng ch\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 chi\u1ebft xu\u1ea5t h\u01b0\u01a1ng v\u1ecb chu\u1ea9n x\u00e1c. Vi\u1ec7c ch\u00e2m th\u00eam c\u00e1c h\u1ee3p ch\u1ea5t n\u00e0y s\u1ebd kh\u00f4i ph\u1ee5c l\u1ea1i t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc, gi\u00fap n\u01b0\u1edbc pha c\u00e0 ph\u00ea drip c\u00f3 v\u1ecb ng\u1ecdt ng\u00e0o thay v\u00ec ph\u1eb3ng l\u1eb7ng v\u00f4 h\u1ed3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u00e1i Ni\u1ec7m T\u00e1i Kho\u00e1ng H\u00f3a Thi\u1ebft L\u1eadp T\u1ef7 L\u1ec7 GH V\u00e0 KH<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1i ni\u1ec7m t\u00e1i kho\u00e1ng h\u00f3a \u0111\u01a1n gi\u1ea3n l\u00e0 vi\u1ec7c b\u1ed5 sung c\u00e1c kho\u00e1ng ch\u1ea5t \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh l\u01b0\u1ee3ng chu\u1ea9n x\u00e1c tr\u1edf l\u1ea1i ngu\u1ed3n n\u01b0\u1edbc tinh khi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c TDS, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 ki\u1ec1m m\u1ee5c ti\u00eau. Ch\u00fang ta nh\u1eafm t\u1edbi t\u1ef7 l\u1ec7 GH v\u00e0 KH c\u1ee5 th\u1ec3 l\u00e0 2:1 theo \u0111\u00fang h\u01b0\u1edbng d\u1eabn c\u1ee7a SCA. S\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y \u0111\u1ea3m b\u1ea3o d\u00f2ng n\u01b0\u1edbc s\u1ebd b\u00f3c t\u00e1ch \u0111\u00fang nh\u1eefng h\u1ee3p ch\u1ea5t h\u01b0\u01a1ng v\u1ecb qu\u00fd t\u1eeb b\u1ed9t c\u00e0 ph\u00ea m\u00e0 kh\u00f4ng cu\u1ed1n theo v\u1ecb \u0111\u1eafng g\u1eaft d\u01b0 th\u1eeba.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u01a1 \u0111\u1ed3 tr\u1ef1c quan b\u00ean d\u01b0\u1edbi ph\u00e1c th\u1ea3o quy tr\u00ecnh chu\u1ea9n x\u00e1c m\u00e0 ch\u00fang ta \u00e1p d\u1ee5ng \u0111\u1ec3 ch\u1ea1m t\u1edbi c\u00e1c m\u1ee5c ti\u00eau n\u00e0y.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"1536\" src=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/re-mineralizing-coffee-water-infographic-1.webp\" alt=\"re-mineralizing coffee water infographic\" class=\"wp-image-48611\" title=\"\" srcset=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/re-mineralizing-coffee-water-infographic-1.webp 1024w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/re-mineralizing-coffee-water-infographic-1-200x300.webp 200w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/re-mineralizing-coffee-water-infographic-1-683x1024.webp 683w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/04\/re-mineralizing-coffee-water-infographic-1-768x1152.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f4ng Th\u1ee9c DIY S\u1eed D\u1ee5ng Mu\u1ed1i Epsom V\u00e0 Baking Soda<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c DIY n\u00e0y ch\u1ec9 \u0111\u00f2i h\u1ecfi 1 g mu\u1ed1i Epsom v\u00e0 0,5 g baking soda cho m\u1ed7i l\u00edt n\u01b0\u1edbc tinh khi\u1ebft. B\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 nh\u00e2n r\u1ed9ng c\u00f4ng th\u1ee9c n\u00e0y cho nh\u1eefng m\u1ebb l\u1edbn h\u01a1n m\u00e0 kh\u00f4ng lo m\u1ea5t \u0111i \u0111\u1ed9 ch\u00ednh x\u00e1c. N\u01b0\u1edbc c\u1ea5t kh\u00f4ng h\u1ec1 \u201cnh\u1ea1t nh\u1ebdo\u201d c\u1ed1 h\u1eefu khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd theo c\u00e1ch n\u00e0y: n\u00f3 kh\u00f4i ph\u1ee5c tr\u1ecdn v\u1eb9n th\u1ec3 ch\u1ea5t v\u00e0 v\u1ecb ng\u1ecdt. Ch\u00fang ta s\u1ebd d\u00f9ng b\u00fat \u0111o TDS v\u00e0 gi\u1ea5y qu\u1ef3 \u0111o pH \u0111\u1ec3 th\u1ea9m \u0111\u1ecbnh l\u1ea1i c\u00e1c ch\u1ec9 s\u1ed1 m\u1ee5c ti\u00eau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo d\u00f5i video qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n s\u1ebd gi\u00fap c\u00e1c b\u01b0\u1edbc \u0111\u1ecbnh l\u01b0\u1ee3ng tr\u1edf n\u00ean r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 l\u00e0m theo h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe title=\"Making your water for filtered coffee | Baking Soda &amp; Epsom Salt\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/qyGq2kxwEQg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n khi t\u00ednh to\u00e1n c\u00e1c l\u01b0\u1ee3ng b\u1ed5 sung n\u00e0y cho dung t\u00edch n\u01b0\u1edbc l\u1edbn h\u01a1n. Chuy\u00ean gia <a href=\"https:\/\/dailycoffeenews.com\/2018\/08\/15\/a-practical-water-guide-for-coffee-professionals-part-i\/\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>Chris Kornman t\u1ea1i Daily Coffee News<\/strong><\/u><\/a> tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc c\u1ea7n thi\u1ebft cho c\u00e1c ti\u00eau chu\u1ea9n chuy\u00ean nghi\u1ec7p:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p class=\"wp-block-paragraph\">&#8220;Gi\u1ea3 s\u1eed b\u1ea1n mu\u1ed1n pha 4 l\u00edt n\u01b0\u1edbc v\u1edbi 80 ppm kho\u00e1ng c\u1ee9ng (t\u00ednh theo CaCO3), t\u1ef7 l\u1ec7 c\u00e1c ph\u1ea7n b\u1eb1ng nhau gi\u1eefa canxi clorua v\u00e0 magie clorua, c\u00f9ng 40 ppm \u0111\u1ed9 ki\u1ec1m (t\u00ednh theo CaCO3) s\u1eed d\u1ee5ng kali bicacbonat\u2026 \u2013 40 ppm HCO3\u2013 (\u0111\u1ed9 ki\u1ec1m theo CaCO3) \u00f7 595,32 = 0,067 g x 4L = 0,269 g KHCO3 th\u00eam v\u00e0o 4L n\u01b0\u1edbc \u2013 40 ppm Mg2+ (theo CaCO3) \u00f7 489,6 = 0,0817 g x 4L = 0,327 g MgCl2 th\u00eam v\u00e0o 4L n\u01b0\u1edbc \u2013 40 ppm Ca2+ (theo CaCO3) \u00f7 681,2 = 0,0587 g x 4L = 0,235 g CaCl2 th\u00eam v\u00e0o 4L n\u01b0\u1edbc&#8221;<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng s\u1ed1 li\u1ec7u n\u00e0y l\u00fd gi\u1ea3i v\u00ec sao ch\u00fang ta ph\u1ea3i d\u1ef1a v\u00e0o c\u00e1c lo\u1ea1i kho\u00e1ng ch\u1ea5t c\u1ee5 th\u1ec3 thay v\u00ec ph\u1ecfng \u0111o\u00e1n m\u00f2 m\u1eabm khi \u0111i\u1ec1u ch\u1ec9nh c\u00e1c m\u1ee9c GH v\u00e0 KH.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Ki\u1ec3m Tra V\u00e0 B\u1ea3o Tr\u00ec \u0110\u1ecbnh K\u1ef3 \u0110\u1ea3m B\u1ea3o Ch\u1ea5t L\u01b0\u1ee3ng N\u01b0\u1edbc \u1ed4n \u0110\u1ecbnh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ki\u1ec3m tra v\u00e0 duy tr\u00ec ngu\u1ed3n n\u01b0\u1edbc c\u00e0 ph\u00ea \u1ed5n \u0111\u1ecbnh \u0111\u00f2i h\u1ecfi b\u00fat \u0111o TDS, gi\u1ea5y th\u1eed pH v\u00e0 b\u1ed9 kit th\u1eed clo \u0111\u1ec3 x\u00e1c th\u1ef1c ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y \u0111o \u0111\u1ea1c l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn h\u00f2a tan v\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng h\u00f3a h\u1ecdc quy\u1ebft \u0111\u1ecbnh t\u1eebng t\u00e1ch c\u00e0 ph\u00ea. Ch\u00fang ta s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u1ecfng ti\u1ebfp x\u00fac v\u1edbi b\u1ed9t c\u00e0 ph\u00ea lu\u00f4n \u0103n kh\u1edbp chu\u1ea9n x\u00e1c v\u1edbi c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc \u0111\u00e3 v\u1ea1ch ra.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c C\u00f4ng C\u1ee5 Ki\u1ec3m Tra C\u1ea7n Thi\u1ebft: B\u00fat TDS V\u00e0 Gi\u1ea5y \u0110o pH<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m nghi\u1ec7m c\u01a1 b\u1ea3n bao g\u1ed3m b\u00fat \u0111o TDS v\u00e0 c\u00e1c d\u1ea3i gi\u1ea5y th\u1eed \u0111\u1ec3 \u0111o l\u01b0\u1ee3ng ch\u1ea5t tan h\u00f2a tan \u0111\u1ed1i chi\u1ebfu v\u1edbi c\u00e1c m\u1ee5c ti\u00eau c\u1ee7a Hi\u1ec7p h\u1ed9i C\u00e0 ph\u00ea \u0110\u1eb7c s\u1ea3n SCA. Ch\u00fang ta t\u00ecm ki\u1ebfm ch\u1ec9 s\u1ed1 TDS quanh m\u1ee9c 150 ppm v\u00e0 \u0111\u1ed9 pH g\u1ea7n 7,0. \u0110\u1ed9 c\u1ee9ng n\u00ean d\u1eebng \u1edf kho\u1ea3ng 30 mg\/L trong khi \u0111\u1ed9 ki\u1ec1m gi\u1eef s\u00e1t m\u1ee9c 40 ppm. N\u1ed3ng \u0111\u1ed9 clo b\u1eaft bu\u1ed9c ph\u1ea3i b\u00e1o 0 mg\/L \u0111\u1ec3 tr\u00e1nh c\u00e1c m\u00f9i v\u1ecb l\u1ea1. N\u1ebfu thi\u1ebfu nh\u1eefng con s\u1ed1 n\u00e0y, ch\u00fang ta s\u1ebd kh\u00f4ng th\u1ec3 bi\u1ebft li\u1ec7u h\u1ec7 th\u1ed1ng l\u1ecdc c\u00f3 \u0111ang ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 hay c\u00e1c kho\u00e1ng ch\u1ea5t DIY \u0111\u00e3 c\u00e2n b\u1eb1ng hay ch\u01b0a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy Tr\u00ecnh Th\u1ef1c H\u00e0nh V\u00e0 T\u1ed1i \u01afu Chi Ph\u00ed V\u1edbi Kho\u00e1ng L\u00f4 L\u1edbn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t quy tr\u00ecnh hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed s\u1ebd k\u1ebft h\u1ee3p c\u00e1c g\u00f3i kho\u00e1ng mua theo l\u00f4 l\u1edbn v\u1edbi n\u01b0\u1edbc tinh khi\u1ebft t\u1eeb m\u00e1y l\u1ecdc RO \u0111\u1ec3 duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh. Ch\u00fang ta b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c ki\u1ec3m tra n\u01b0\u1edbc m\u00e1y, x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m thi\u1ebfu h\u1ee5t, r\u1ed3i quy\u1ebft \u0111\u1ecbnh l\u1ecdc than ho\u1ea1t t\u00ednh hay t\u1ef1 pha kho\u00e1ng DIY tr\u01b0\u1edbc khi \u0111o ki\u1ec3m tra l\u1ea1i. \u0110\u1ec3 gi\u1eef cho k\u1ebft qu\u1ea3 lu\u00f4n \u1ed5n \u0111\u1ecbnh, h\u00e3y b\u1ea3o qu\u1ea3n n\u01b0\u1edbc \u0111\u00e3 pha kho\u00e1ng trong c\u00e1c b\u00ecnh k\u00edn v\u00e0 th\u01b0\u1eddng xuy\u00ean hi\u1ec7u chu\u1ea9n c\u00e1c d\u1ee5ng c\u1ee5 \u0111o l\u01b0\u1eddng. B\u1ea1n c\u0169ng n\u00ean l\u01b0u t\u00e2m \u0111\u1ebfn nh\u1eefng bi\u1ebfn \u0111\u1ed9ng theo m\u00f9a c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc m\u00e1y \u0111\u1ecba ph\u01b0\u01a1ng v\u1ed1n c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch \u0111i m\u1ed1c chu\u1ea9n ban \u0111\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c g\u00f3i kho\u00e1ng theo l\u00f4 v\u00e0 t\u1ef1 l\u1ecdc n\u01b0\u1edbc RO s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3 ng\u00e2n s\u00e1ch so v\u1edbi vi\u1ec7c mua n\u01b0\u1edbc \u0111\u00f3ng chai h\u00e0ng ng\u00e0y. Ch\u00fang ta ch\u1ec9 n\u00ean gi\u1eef v\u00e0i chai n\u01b0\u1edbc kho\u00e1ng \u0111\u00f3ng chai nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng \u00e1n d\u1ef1 ph\u00f2ng khi ngu\u1ed3n cung c\u1ea1n ki\u1ec7t. Chuy\u00ean gia <a href=\"https:\/\/dailycoffeenews.com\/2018\/08\/29\/a-practical-water-guide-for-coffee-professionals-part-ii-the-sensory-data\/\" target=\"_blank\" rel=\"nofollow noopener\"><u><strong>Chris Kornman t\u1ea1i Daily Coffee News<\/strong><\/u><\/a> nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng c\u00e1c kho\u00e1ng ch\u1ea5t n\u00e0y:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p class=\"wp-block-paragraph\">&#8220;Trong c\u00e1c th\u1eed nghi\u1ec7m c\u1ee7a ch\u00fang t\u00f4i, ngu\u1ed3n n\u01b0\u1edbc c\u00f3 \u0111\u1ed9 ki\u1ec1m cao t\u1ea1o ra t\u00e1ch c\u00e0 ph\u00ea r\u1ea5t b\u1eb9t, ch\u00e1t b\u1ed9t nh\u01b0 ph\u1ea5n, l\u00e0m c\u00f9n m\u00f2n \u0111\u1ed9 chua v\u00e0 khi\u1ebfn c\u00e1c t\u1ea7ng h\u01b0\u01a1ng v\u1ecb tr\u1edf n\u00ean h\u1ed7n lo\u1ea1n m\u1edd m\u1ecbt. M\u1ed9t t\u1ef7 l\u1ec7 th\u1ea5p h\u01a1n, kho\u1ea3ng 1 ph\u1ea7n \u0111\u1ed9 ki\u1ec1m cho m\u1ed7i 2 \u0111\u1ebfn 3 ph\u1ea7n kho\u00e1ng c\u1ee9ng (t\u00ednh theo CaCO3), mang l\u1ea1i k\u1ebft qu\u1ea3 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n.&#8221;<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e1t hi\u1ec7n n\u00e0y ch\u1ee9ng minh v\u00ec sao ch\u00fang ta ph\u1ea3i theo d\u00f5i \u0111\u1ed9 ki\u1ec1m \u0111\u1ed9c l\u1eadp v\u1edbi \u0111\u1ed9 c\u1ee9ng trong quy tr\u00ecnh pha ch\u1ebf. B\u1eb1ng c\u00e1ch \u0111o ki\u1ec3m, c\u0103n ch\u1ec9nh v\u00e0 b\u1ea3o tr\u00ec ngu\u1ed3n n\u01b0\u1edbc c\u1ea9n th\u1eadn, b\u1ea1n s\u1ebd lu\u00f4n lu\u00f4n chi\u1ebft xu\u1ea5t \u0111\u01b0\u1ee3c nh\u1eefng t\u00e1ch c\u00e0 ph\u00ea drip v\u1edbi h\u01b0\u01a1ng v\u1ecb \u0111\u1ec9nh cao nh\u1ea5t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">N\u00f3i Th\u1eb3ng: Nh\u1eefng \u0110i\u1ec1u Ph\u1ea7n L\u1edbn M\u1ecdi Ng\u01b0\u1eddi B\u1ecf S\u00f3t V\u1ec1 N\u01b0\u1edbc Pha C\u00e0 Ph\u00ea Drip<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: N\u1ebfu n\u01b0\u1edbc m\u00e1y nh\u00e0 t\u00f4i d\u00f9ng chloramine thay v\u00ec clo th\u00ec sao?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00e1c b\u1ed9 l\u1ecdc than ho\u1ea1t t\u00ednh th\u00f4ng th\u01b0\u1eddng nh\u01b0 Brita ho\u00e0n to\u00e0n b\u1ea5t l\u1ef1c tr\u01b0\u1edbc chloramine, khi\u1ebfn b\u1ea1n v\u1eabn \u0111ang pha c\u00e0 ph\u00ea v\u1edbi th\u1ee9 n\u01b0\u1edbc n\u1ed3ng m\u00f9i h\u00f3a ch\u1ea5t. H\u00e3y chuy\u1ec3n sang b\u1ed9 l\u1ecdc than x\u00fac t\u00e1c (catalytic carbon) ho\u1eb7c h\u1ec7 th\u1ed1ng l\u1ecdc th\u1ea9m th\u1ea5u ng\u01b0\u1ee3c RO \u0111\u1ec3 tri\u1ec7t ti\u00eau n\u00f3 ho\u00e0n to\u00e0n, r\u1ed3i m\u1edbi t\u00e1i kho\u00e1ng h\u00f3a. H\u00e3y d\u00f9ng b\u1ed9 kit th\u1eed chloramine tr\u01b0\u1edbc\u2014nhi\u1ec1u ng\u01b0\u1eddi kh\u00f4ng h\u1ec1 hay bi\u1ebft th\u00e0nh ph\u1ed1 c\u1ee7a m\u00ecnh \u0111ang s\u1eed d\u1ee5ng ch\u1ea5t kh\u1eed tr\u00f9ng c\u1ee9ng \u0111\u1ea7u n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: V\u00ec sao n\u01b0\u1edbc c\u1ea5t b\u1ed7ng nhi\u00ean u\u1ed1ng ngon l\u1ea1 k\u1ef3 sau khi ch\u00e2m th\u00eam kho\u00e1ng ch\u1ea5t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: N\u01b0\u1edbc c\u1ea5t nguy\u00ean ch\u1ea5t ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 kho\u00e1ng ch\u1ea5t, n\u00ean n\u00f3 chi\u1ebft xu\u1ea5t c\u00e0 ph\u00ea r\u1ea5t kh\u1eadp khi\u1ec5ng v\u00e0 c\u00f3 v\u1ecb b\u1eb9t v\u00f4 h\u1ed3n. Mu\u1ed1i Epsom v\u00e0 baking soda \u0111\u01b0a t\u1ef7 l\u1ec7 GH : KH v\u1ec1 chu\u1ea9n 2:1 c\u1ee7a SCA, kh\u00f4i ph\u1ee5c magie gi\u00fap h\u01b0\u01a1ng v\u1ecb t\u01b0\u01a1i s\u00e1ng v\u00e0 bicacbonat \u0111\u1ec3 l\u00e0m ch\u1ea5t \u0111\u1ec7m\u2014bi\u1ebfn dung m\u00f4i th\u00e0nh c\u1ed7 m\u00e1y b\u00f3c t\u00e1ch h\u01b0\u01a1ng th\u01a1m th\u1ef1c th\u1ee5. H\u00e3y d\u00f9ng b\u00fat \u0111o TDS ki\u1ec3m ch\u1ee9ng \u1edf m\u1ed1c 150 ppm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: V\u00ec sao h\u1ea1t rang nh\u1ea1t v\u1eabn th\u1ea5t b\u1ea1i th\u1ea3m h\u1ea1i d\u00f9 th\u00f4ng s\u1ed1 n\u01b0\u1edbc \u0111\u1ea1t chu\u1ea9n SCA ho\u00e0n h\u1ea3o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: H\u1ea1t rang nh\u1ea1t c\u1ea7n ngu\u1ed3n n\u01b0\u1edbc m\u1ec1m h\u01a1n nhi\u1ec1u\u2014h\u00e3y h\u1ea1 TDS xu\u1ed1ng 30\u201380 ppm v\u00e0 \u0111\u1ed9 ki\u1ec1m xu\u1ed1ng 15\u201320 ppm \u0111\u1ec3 n\u00e2ng niu c\u00e1c n\u1ed1t h\u01b0\u01a1ng hoa c\u1ecf, kh\u00f4ng gi\u1ed1ng nh\u01b0 h\u1ea1t rang v\u1eeba c\u00f3 th\u1ec3 tho\u1ea3i m\u00e1i \u1edf m\u1ed1c 150 ppm. C\u00f4ng th\u1ee9c chu\u1ea9n m\u1ef1c c\u1ee7a b\u1ea1n \u0111ang chi\u1ebft xu\u1ea5t qu\u00e1 \u0111\u00e0 c\u00e1c axit thanh m\u1ea3nh, l\u00e0m b\u1eb9p d\u00ed c\u00e1c t\u1ea7ng h\u01b0\u01a1ng tinh t\u1ebf. H\u00e3y \u0111o ki\u1ec3m v\u00e0 ch\u1ee7 \u0111\u1ed9ng gi\u1ea3m n\u1ed3ng \u0111\u1ed9 kho\u00e1ng cho d\u00f2ng h\u1ea1t n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: \u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu n\u1ed3ng \u0111\u1ed9 bicacbonat qu\u00e1 cao trong n\u01b0\u1edbc pha h\u1ea1t rang \u0111\u1eadm?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: L\u01b0\u1ee3ng bicacbonat d\u01b0 th\u1eeba s\u1ebd \u0111\u1ec7m pH qu\u00e1 m\u1ee9c, \u0111\u00e8 b\u1eb9p c\u00e1c n\u1ed1t h\u01b0\u01a1ng h\u1ea1t b\u00f9i ng\u1eady th\u00e0nh m\u1ed9t m\u1edb b\u1ed9t ch\u00e1t ngh\u1eb9n. \u0110\u1ed1i v\u1edbi h\u1ea1t rang \u0111\u1eadm, vi\u1ec7c t\u0103ng nh\u1eb9 \u0111\u1ed9 ki\u1ec1m gi\u00fap l\u00e0m m\u01b0\u1ee3t m\u00e0 h\u01b0\u01a1ng v\u1ecb theo l\u1eddi khuy\u00ean c\u1ee7a Third Wave, nh\u01b0ng ph\u1ea3i h\u00e3m \u1edf m\u1ee9c t\u1ed1i \u0111a 70 ppm. Ch\u00ednh s\u1ef1 c\u00e2n b\u1eb1ng l\u1edbp \u0111\u1ec7m m\u1edbi l\u00e0 th\u1ee9 gi\u1ea3i ph\u00f3ng n\u1ed1t s\u00f4-c\u00f4-la ng\u1ecdt ng\u00e0o m\u00e0 kh\u00f4ng l\u00e0m m\u1edd \u0111\u1ee5c n\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: V\u00ec sao n\u01b0\u1edbc RO v\u1eabn c\u00f3 v\u1ecb k\u1ef3 l\u1ea1 d\u00f9 \u0111\u00e3 pha c\u00e1c g\u00f3i kho\u00e1ng Third Wave?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: T\u1ef7 l\u1ec7 x\u1ea3 n\u01b0\u1edbc th\u1ea3i c\u1ee7a m\u00e1y RO ph\u1ea3n \u00e1nh \u0111\u1ed9 tinh khi\u1ebft s\u1ebd tr\u1ed3i s\u1ee5t n\u1ebfu m\u00e0ng l\u1ecdc b\u1ecb ngh\u1eb9t c\u1eb7n, \u0111\u1ec3 l\u1ea1i c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m vi l\u01b0\u1ee3ng. H\u00e3y th\u1ef1c hi\u1ec7n chu k\u1ef3 x\u1ea3 r\u1eeda m\u00e0ng l\u1ecdc m\u1ed7i th\u00e1ng v\u00e0 \u0111o d\u01b0 l\u01b0\u1ee3ng clo\u2014c\u00e1c g\u00f3i kho\u00e1ng kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c ngu\u1ed3n n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o b\u1ea9n. H\u1ec7 th\u1ed1ng l\u1ecdc RO c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 tinh khi\u1ebft chu\u1ea9n nh\u01b0 n\u01b0\u1edbc c\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ecfi: S\u1ef1 thay \u0111\u1ed5i ngu\u1ed3n n\u01b0\u1edbc theo m\u00f9a ph\u00e1 h\u1ecfng t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00e1c nh\u00e0 m\u00e1y n\u01b0\u1edbc \u0111\u00f4 th\u1ecb th\u01b0\u1eddng \u0111i\u1ec1u ch\u1ec9nh h\u00f3a ch\u1ea5t kh\u1eed tr\u00f9ng v\u00e0 ngu\u1ed3n c\u1ea5p theo th\u1eddi ti\u1ebft, khi\u1ebfn \u0111\u1ed9 c\u1ee9ng v\u00e0 m\u1ee9c clo bi\u1ebfn \u0111\u1ed9ng \u00e2m th\u1ea7m, l\u00e0m ch\u1ec9 s\u1ed1 TDS nh\u1ea3y m\u00faa th\u1ea5t th\u01b0\u1eddng v\u00e0 \u0111\u1ea3o l\u1ed9n chi\u1ebft xu\u1ea5t. H\u00e3y \u0111o ki\u1ec3m l\u1ea1i m\u1ed1c chu\u1ea9n m\u1ed7i qu\u00fd m\u1ed9t l\u1ea7n v\u00e0 tinh ch\u1ec9nh t\u1ef7 l\u1ec7 DIY t\u01b0\u01a1ng \u1ee9ng\u2014\u0111\u1eebng ng\u00e2y th\u01a1 cho r\u1eb1ng n\u01b0\u1edbc m\u00e1y lu\u00f4n c\u00f3 th\u00e0nh ph\u1ea7n b\u1ea5t bi\u1ebfn. \u0110\u00f3 l\u00e0 l\u00fd do d\u00e2n chuy\u00ean nghi\u1ec7p lu\u00f4n ki\u1ec3m tra l\u1ea1i n\u01b0\u1edbc tr\u01b0\u1edbc c\u00e1c m\u1ebb pha l\u1edbn.<\/p>\n\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What if your tap water has chloramine instead of chlorine?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Carbon filters like Brita won't touch chloramine, so you're still brewing with chemical off-flavors. Switch to a catalytic carbon filter or RO system to strip it out completely, then re-mineralize. Test with a chloramine kit first\u2014most don't realize their city's using this tougher disinfectant.\"}},{\"@type\":\"Question\",\"name\":\"Why does distilled water suddenly taste amazing after adding minerals?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pure distilled lacks any minerals, so it extracts coffee unevenly and tastes flat. The Epsom salt and baking soda hit the SCA's 2:1 GH:KH ratio, restoring magnesium for brightness and bicarbonate for buffering\u2014turning solvent into a flavor extractor. Verify with TDS meter at 150ppm.\"}},{\"@type\":\"Question\",\"name\":\"How do light roasts fail even with perfect SCA water specs?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Light roasts need softer water\u2014drop TDS to 30-80ppm and alkalinity to 15-20ppm to preserve florals, unlike mediums that handle 150ppm fine. Your standard recipe over-extracts delicate acids, muting nuances. Test and dial down for those beans specifically.\"}},{\"@type\":\"Question\",\"name\":\"What happens if bicarbonate goes too high in dark roast water?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Excess bicarbonate buffers pH too much, flattening nutty notes into chalky mud. For dark roasts, bump alkalinity slightly to smooth flavors per Third Wave advice, but cap at 70ppm max. It's the buffer balance that unlocks chocolate without dulling it.\"}},{\"@type\":\"Question\",\"name\":\"Why does your RO water still taste off after Third Wave packets?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"RO waste water ratio means inconsistent purity if membranes clog, leaving trace contaminants. Run a full flush cycle monthly and test chlorine residuals\u2014packets can't fix upstream junk. 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Ch\u00fang ta t\u1ed1i \u01b0u t\u1ef7 l\u1ec7 magie v\u00e0 canxi \u0111\u1ec3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t l\u00fd t\u01b0\u1edfng v\u00e0 \u0111\u1ed9 trong tr\u1ebbo. 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