How to Create Sour Milk

by Tina Bernstein

Sour milk is a substitute for buttermilk in baked goods. Sour milk is also used as a starter ingredient for yogurt and cheese making, so knowing how to make sour milk at home is useful. Either vinegar or lemon juice mixed with milk will sour it.

Measure 1 cup milk into the pitcher.

Add 1 tbsp. of lemon juice or vinegar to the milk.

Stir with fork for 30 seconds.

Set the timer for five minutes. Use the sour milk when the timer goes off.


  • Use flavored vinegars such as apple cider or balsamic to add their taste to the recipe.

    Use baking soda instead of baking powder in biscuit and muffin recipes using sour milk; the biscuits and muffins will be fluffier.

Photo Credits

  • adavino/iStock/Getty Images

About the Author

Tina Bernstein started her professional writing career in 2011. A biomedical engineer and personal trainer certified through ACSM and NASM, she trains clients in Los Angeles to take control of their exercise and nutrition habits. Bernstein graduated from the University of Southern California with a master's degree in medical device engineering and works with companies to commercialize new medical technologies.