Question: how much caffeine in 100 grams of dark chocolate?
Answer: A bar of milk chocolate of 30g contains about as much caffeine as a cup of decaffeinated coffee. Dark chocolate can measure between 5 to 20mg caffeine per ounce of chocolate. That is about 17.5 to 70mg per 3.5 ounce or 100g chocolate. But some dark chocolates can contain as much as 160 mg per 100g.