What is Buttermilk?
Buttermilk is a fermented dairy drink. Traditionally, it was the liquid left behind after churning butter out of cultured cream.
As most modern butter is not made with cultured cream but uncultured sweet cream, most modern buttermilk is cultured separately.
How To Make Buttermilk In South Africa?
Use milk: Pour 1 cup of whole or 2% milk into a liquid measuring cup.
Add an acid: For every 1 cup of milk, stir in 1 tablespoon lemon juice or vinegar.
Ready to use: The acid will curdle the milk slightly.
How long does homemade buttermilk last?
Two weeks
As long as you store it in an airtight container in a very cold part of your fridge not the doors, which are the warmest and most often exposed to warmer air), it can last up to two weeks.
Can homemade buttermilk go bad?
The good thing about buttermilk is that it contains a lot of lactic acids. This lactic acid helps to preserve other buttermilk for a period.
However, after around two weeks, bacteria will start to grow and multiply in the buttermilk. It is this bacteria that causes it to go bad.