Baking powder and baking soda are essential ingredients when it comes to baked goods like biscuits, muffins, cookies and cakes.
• Add one teaspoon of baking powder to one-third cup of hot water.
• If the mixture immediately bubbles, the baking powder is still effective enough to use. If not, it’s time to toss it.
• Add one teaspoon of baking soda to 3 tablespoons of vinegar.
• If the mixture quickly fizzes up, the baking soda is still potent enough to use. Otherwise, it’s time for a new box.