What is and causes the skin on top of hot chocolate (coco) and other hot drinks?
In: Other
*Milk skin or lactoderm refers to a sticky film of protein that forms on top of dairy milk and foods containing dairy milk (such as hot chocolate and some soups). Milk film can be produced both through conventional boiling and by microwaving the liquid, and as such can often be observed when heating milk for use in drinks such as drinking chocolate. It is caused by the denaturation of proteins such as beta-lactoglobulin (whey protein).*
https://en.m.wikipedia.org/wiki/Milk_skin?wprov=sfla1
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