This is a sour dairy product.

The source of this sour taste refers to organic acids such as acetic acid,

malic acid

, citric acid, etc.

But not limited to the organic acids mentioned above, there are many food ingredients with sour taste.

This acidity refers to the pH value, not the acidity that most people say.

base forming food

There is nothing alkaline in it, such as steamed bread.

baseboard

One purpose is to neutralize organic acids.

Most foods contain organic acids.