difference ambient temperature has to be to the bean surface temperature. this can be as little as f in a good drum roaster or as much as f in the oven the faster your beans move, the cooler you can keep your ambient temperature. you can only heat up beans so fast before the outside scorches. if your cocoa...
molecule. . heat above f for extended amounts of time. here is the thing. given those requirements i am not sure maillard reactions happen to any great and noticeable extent in chocolate. yes, there are proteins and amino acids. unfortunately there is little data that there are reducing sugars. remember, cocoa...