How to Make Fizzy Bath Bombs

My favorite method of molding the bath bombs is with a "seltzer press" like this one I got from Supplies by Star. With these, you can make larger tablets and customize how thick or thin they come out. It's easy to pack the mixture really well, and just as easy to pop it out of the bottom of the tube.

Spoon 2-3 heaping tablespoons of the mixture into the press, compress the mixture 2-3 times with the plunger, and gently pop it out of the bottom.