When getting started making bath bombs, we were trying to decide the best bath bomb mold material. What we found out is there are really 4 types of molds: silicone, plastic, stainless steel, and aluminum. We bought sets of all materials, tried them out, and now only use 2 of them. We will discuss the 4 materials and which one we believe is actually the best bath bomb mold material. Continue reading “Best Bath Bomb Mold Material?”