How much caffeine is in 85 percent dark chocolate?

The caffeine content in 85% Dark Chocolate can vary by brand, but it generally contains about 80-100 milligrams of caffeine per 100 grams. A typical serving size of 1 ounce (about 28 grams) would have approximately 23-30 milligrams of caffeine. Dark chocolate also contains theobromine, which can have similar stimulant effects. Always check specific product labels for precise information.