Source: James A. Duke. 1983. Handbook of Energy Crops. unpublished.
Cup (6 oz.) expresso coffee | 310 mg |
Cup (6 oz.) boiled coffee | 100 mg |
Cup (6 oz.) instant coffee | 65 mg |
Cup (6 oz.) tea | 10-50 mg |
Cup (6 oz.) cocoa | 13 mg |
Can (6 oz.) cola | 25 mg |
Can (6 oz.) coca cola | 20 mg |
Cup (6 oz.) mate | 25-50 mg |
Can (6 oz.) pepsi cola | 10 mg |
Tablet Caffeine | 100-200 mg |
Tablet(800 mg) Zoom (Paullinia upana) | 60 mg |