What You Need to Know
During heating, water in butter evaporates at 100 °C while milk proteins denature and begin to caramelize around 170 °C. The resulting clarified fat, or ghee, is free of water and milk solids, giving it a higher smoke point and distinct nutty flavor. Precise temperature control prevents scorching of the denatured proteins and ensures complete separation.
The Science
Primary Reaction
Thermal evaporation of water and denaturation/carbonyl formation of milk proteins