Your brew method influences caffeine more than roast level. Caffeine levels vary based on ratio, grind, and extraction time. As a general reference:
- Espresso (1–2 oz): ~60–80 mg
- Drip / Pour-Over (8 oz): ~80–120 mg
- French Press (8 oz): ~80–110 mg
- Cold Brew (8 oz, diluted): ~120–180 mg
Brew Tip: Darker roast means bolder flavor — not necessarily more caffeine.