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## [How Much Caffeine Is in a Shot of Espresso? The Exact mg Breakdown by Shot Type, Ratio, and Bean](https://coffeefactz.com/how-much-caffeine-in-a-shot-of-espresso/)Espresso shot caffeine numbers vary wildly online because most sources skip the variables that actually move the mg. This breakdown covers the exact milligram ranges for single, double, ristretto, and lungo shots, tied to dose, extraction pressure, water temperature, and bean species, so you can read any caffeine claim with confidence.By [Pham Toan
](https://coffeefactz.com/author/pham-toan/)/ October 6, 2026 / 20 minutes of reading
[ How Much Caffeine Is in a Shot of Espresso? The Exact mg Breakdown by Shot Type, Ratio, and Bean Read More »](https://coffeefactz.com/how-much-caffeine-in-a-shot-of-espresso/)[caffeine content](https://coffeefactz.com/tag/caffeine-content/) [coffee facts](https://coffeefactz.com/tag/coffee-facts/) [espresso](https://coffeefactz.com/tag/espresso/)
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