how to make baking powder to baking soda

I have a recipe here that calls for 1 tsp of baking soda and two teaspoons of cream of tartar. In fact, it's slightly higher in the middle. My banana bread never falls in the center. I've been making the same banana bread for years, and I never melt the butter first. That's why your banana bread falls flat after removing it from the oven. By melting the butter first, those tiny holes never form. The particles of butter will melt after the batter has risen, leaving tiny holes in the banana bread. January 23, anon12398: Try not melting the butter. Why do my dumplings turn very dark in the middle when i put the baking powder in them? Thx 4 this info i now have info 4 my science fair project=D I now know what to do for my science project. Baking soda is great as a natural toothpaste or cleaner or odor absorber, but baking powder is not. One thing to keep in mind is that you don't really want to use baking powder for non-cooking purposes. Baking powder that have lost its potency will not fizz. Good baking powder should cause noticeable fizzing, like dropping an effervescent tablet into a glass of water. If you want to test that can of baking powder that's been in your pantry for a while, put some water in a glass measuring cup and add a small amount of baking powder to it. One useful tip I learned from the PBS program 'America's Test Kitchen' is that baking powder loses its potency over time.

How to make baking powder to baking soda