Question: To test baking soda to make sure it's still good.
Option 0: Add a teaspoon of baking soda to a 1/2 cup of hot water. If it doesn’t bubble, it’s time to throw it away.
Option 1: Add a teaspoon of baking soda to a 1/2 cup of cold water. If it doesn’t bubble, it’s time to throw it away.
Answer: 0