As they turn yellow, starch is changed into sugar. Black spots indicate more sugar. Keep them in a cool place to slow ripening. A chocolate bar contains about the same amount of caffeine as a third of a cup of coffee. Each kind of chocolate has its own chemistry and reacts differently when cooked.
All chocolate begins with roasting cocoa beans.
This is either dried or used as an ingredient in making a type of chocolate. Milk chocolate contains cocoa butter, sugar, milk, and vanilla. Dutch chocolate has most of the cocoa butter removed. Dark chocolate contains sugar, cocoa solids, and sometimes dairy butter, with cocoa butter removed. Chocolate powder is pure cocoa ground up.