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Baking Powder Baking Soda
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5 from 1 vote

The Leaven Test

The Leaven Test determines if previously used baking powder (or baking soda) is active. Always test before using a recipe.   Photography by Beverly Davis for CornbreadMillionaire.com.
Prep Time2 minutes
Total Time2 minutes
Course: Leavening Agents
Cuisine: American
Keyword: #leavening agents, baking powder, baking soda
Servings: 2 leavening agents
Calories: 5kcal
Cost: $5

Ingredients

  • 3 tablespoons white distilled vinegar
  • 1/2 teaspoon baking soda
  • 3 tablespoons hot water
  • 1/2 teaspoon baking powder

Instructions

HOW TO TEST BAKING SODA

  • Pour three tablespoons of distilled white vinegar into a small bowl or measuring cup. Stir contents in baking soda box with a dry measuring spoon. Drop 1/2 teaspoon of baking soda into the vinegar. A vigorous fizz means it's effective and okay to use. Discard if it's flat or has a light fizz.

HOW TO TEST BAKING POWDER

  • Pour three tablespoons of boiling hot water into a heat proof container. Drop 1/2 teaspoon of baking powder into the hot water. A vigorous fizz means it's effective and okay to use. Discard if it's flat or has a light fizz.