Product | Volume or weight | Caffeine content |
---|---|---|
mg | ||
Roasted and ground coffee | ||
Percolated | 150 ml | 40–170 |
Drip | 150 ml | 60–180 |
Decaffeinated | 150 ml | 2–5 |
Instant coffee | ||
Caffeinated | 150 ml | 40–180 |
Decaffeinated | 150 ml | 2–8 |
Tea | ||
Bagged | 150 ml | 28–44 |
Leaf | 150 ml | 30–48 |
Instant | 150 ml | 24–50 |
Iced | 150 ml | 28–32 |
Cocoa | 150 ml | 2–7 |
Chocolate bar | ||
Milk | 28 g | 1–15 |
Sweet | 28 g | 5–36 |
Dark | 28 g | 5–35 |
Baking chocolate | 28 g | 18–118 |
Soft drinks | ||
Regular cola | 180 ml | 15–24 |
Caffeine-free cola | 180 ml | 0 |
Diet cola | 180 ml | 13–29 |
↵2-a Data from Debry (1994) and Barone and Roberts (1996).