Caffeine content of different foods and drinks
| Mean concentration | Range (mg) | |
|---|---|---|
| Filtered coffee | 85 mg/125 mL | 60–135 |
| Instant coffee | 65 mg/125 mL | 35–105 |
| Decaffeinated coffee | 3 mg/125 mL | 1–5 |
| Espresso | 60 mg/30 mL | 35–100 |
| Tea (leaves or bag) | 32 mg/150 mL | 20–45 |
| Iced tea | 20 (330 mL) | 10–50 |
| Hot chocolate | 4 mg/150 mL | 2–7 |
| Caffeinated soft drinks | 39 mg/330 mL | 30–48 |
| Sugar-free soft drinks | 41 mg/330 mL | 26–57 |
| Energy drinks | 80 mg/330 mL | 70–120 |
| Chocolate bar | 20 (30 g) | 5–36 |
| Dark chocolate | 60 mg/30 g | 20–120 |
| Milk chocolate | 6 mg/30 g | 1–15 |
The quantity of caffeine varies a lot for each food or drink. It is related to the brand but also for coffee and tea to the duration of infusion, filtration and mode of preparation.
Data from http://www.coffeeandhealth.org.