1, milk to solve the spicy reason is that capsaicin and milk casein in the combination of faster than the speed of absorption by the stomach and intestines, the product after the combination of the two will not stimulate the digestive tract pain, this is the principle.

2, because milk contains very lipophilic casein. Casein is a phosphoprotein, 80% of the protein in milk is derived from casein. And this protein is very easy to form micelle, which is a ball structure like below.

3. It can wrap up into a big mass of lipophilic stuff into a ball and roll away. So when drinking milk when eating spicy, casein has a detergent effect on capsaicin, which relieves the spiciness.