chemical reaction


Milk curdles when its pH drops, allowing protein molecules in milk to clump together. (Tess Watson)

Why Milk Curdles

Curdled milk is what you get when lumps form in smooth milk. Although the clumps form in spoiled milk, the chemical reaction that causes curdling also occurs in fresh milk, under the right conditions. Intentional curdling of milk is used to produce foods, such as yogurt, cheese, and buttermilk. Here’s […]