To determine whether baking powder is still fresh:
Place 1/2 teaspoon baking powder in a small bowl. Add 1/4 cup hot water. If the mixture foams, the baking powder is still good. If it does not foam, replace your box of baking powder.
That is right, but if I were to ask Darrel about this I bet he would know the answer. He is stuck inside a cook book all the time. That is his thing, not mine. I would rather bake any day. , maybe I shouldn't have said that huh? I only bake at special holidays though, honest.