Baking powder is different from baking soda as it contains sodium bicarbonate and an acid. As such, baking powder only needs a liquid to be activated. It dissolves in water and can be further diluted when needed. No additional rise time is required as baking powder reacts immediately when exposed to liquid and heat. Baking soda, on the other hand, only contains sodium bicarbonate and will require an acid to activate. Baking powder can be stored in its original packaging in the pantry or a dark and cool cupboard. Ensure that the lid is shut tightly. It is not advisable to store this product in a refrigerator or freezer as the condensation may cause a chemical reaction.