What is the difference between double acting and regular baking powder?
You cannot double a single acting baking powder to get a double acting one. A single acting baking powder releases carbon dioxide gas (which is a leavening agent) as soon as it becomes wet. To use it you need to bake the product as soon as it is mixed. If left on the counter too long the product might loose carbon dioxide. A double acting baking powder will release some the carbon dioxide when moisture is added, but the greatest amount is released as it heats. Using an excess of baking will sometimes leave a bitter taste in the product, so follow the recipe amount.
You cannot double a single acting baking powder to get a double acting one. A single acting baking powder releases carbon dioxide gas (which is a leavening agent) as soon as it becomes wet. To use it you need to bake the product as soon as it is mixed. If left on the counter too long the product might loose carbon dioxide. A double acting baking powder will release some the carbon dioxide when moisture is added, but the greatest amount is released as it heats. Using an excess of baking will sometimes leave a bitter taste in the product, so follow the recipe amount.