Now, fold your bias tape over to the back side, encasing the raw edge. Pin as you go. Bias tape folded over to the back side: This is what my pinning looks like. I slip the pins under the bias tape on the top side and make sure it catches the bias on the back.
Baking Powder. Baking powder on the other hand, is actually a combination of baking soda plus another acid, in the presence of an inert stabilizer (a fancy term for an inactive ingredient that keeps the mixture from reacting), which is often a bit of cornstarch.
What is baking powder? Baking powder is a chemical leavening agent that causes baked goods to rise by releasing bubbles of carbon dioxide gas into a batter or dough. It is double acting, meaning that it acts once when moisture is added and again when heat is applied. This allows baking powder to give an extra lift to baked goods that contain it.