From the Hershey's website:
Caffeine
Some people are surprised to learn that chocolate is not high in caffeine. A typical 8-ounce glass of chocolate milk has the same amount of caffeine as a cup of decaffeinated coffee. A HERSHEY'S chocolate bar (1.55 ounce) contains about 10 mg of caffeine - slightly more than a cup of decaffeinated coffee, but much less than that found in regular coffee, tea, and some soft drinks. The small amount of caffeine in chocolate occurs naturally in cocoa beans.
| Source | Serving | Caffeine2 |
|---|---|---|
| Coffee | 1 Cup (240ml) | |
| Brewed, drip method | 65-120mg | |
| Instant | 60-85mg | |
| Decaffeinated | 2-3mg | |
| Teas | 1 Cup (240ml) | |
| Brewed, major U.S. brands | 20-90mg | |
| Instant | 24-31mg | |
| Decaffeinated | 9-50mg | |
| Soft Drinks | 1 Cup (240ml) | |
| Caffeinated | 20-40mg | |
| HERSHEY'S confectionery products | ||
| HERSHEY'S BITES candies | 18 Pieces (39g) | 3-8mg |
| HERSHEY'S COOKIES 'N' CRÉME candy bar | 1.55 oz (43g) | 4mg |
| KIT KAT wafer bar | 1.5 oz (42g) | 6mg |
| KRACKEL chocolate bar | 1.45 oz (41g) | 7mg |
| HERSHEY'S KISSES brand chocolate | 9 pieces (41g) | 9mg |
| HERSHEY'S chocolate bar | 1.55 oz (43g) | 9mg |
| HERSHEY'S chocolate bar with almonds | 1.45 oz (41g) | 8mg |
| MR. GOODBAR chocolate bar | 1.75 oz (49g) | 7mg |
| REESE'S peanut butter cups | 1.6 oz (45g) | 4mg |
| REESE'S PIECES candy | 1.63 oz (46g) | 0mg |
| ROLO caramels in milk chocolate | 7 pieces (42g) | 3mg |
| SKOR toffee bar | 1.4 oz (39g) | 3mg |
| HERSHEY'S SPECIAL DARK chocolate bar | 1.45 oz (41g) | 18mg |