Why is my bath bomb not fizzing very much?
If your bath bomb is not fizzing in the tub as much as you’d like, you may try increasing the amount of citric acid in your recipe. You can start with a mix of 2 parts baking soda to 1.5 parts citric acid. In addition, if you use cornstarch in your recipe, you may try decreasing the amount or eliminating it all together. Fizzing can also decrease if a large amount of oil is used. If your bath bomb comes in contact with moisture from the air or from a damp environment, the fizzing reaction can decrease. To protect it from moisture, wrap it tightly with plastic wrap. In the video below, you can see the Midas Touch Bath Bombs creating a good amount of fizz; click here to see the recipe.