Melt-and-pour Peppermint Soap
Making soap from scratch using lye is an exciting process, but doing so requires several safety measures and is best done by someone with experience. Here, we have a recipe to make melt-and-pour soap using unscented glycerin soap as the base. You can make any shape and use any scent you like. We made peppermint soap because of its ties to the holidays. Plus, it smells great.
Clear glycerin soap for melting
White glycerin soap for melting
Peppermint essential oil
Glycerin soap color
Molds of your choice
1 Chop up the clear and white glycerin soaps into pieces as small as possible (keep them separate).
2 Using a microwave-safe bowl, melt the white glycerin soap. Microwave it two to three times, about 30 seconds each time, stirring after each. Near the end of this process, drop in three to five drops of peppermint essential oil.
3 Spray your molds with cooking spray and once the soap has melted, pour a ½-inch layer in the bottom of the mold. We used small loaf pans to create a bar-like shape that can easily be cut into smaller bars.
4 Spray the top of the soap with rubbing alcohol. This is to get rid of the bubbles that form on the top. Spray until all of the bubbles have popped.
5 Wait for the soap to set. It could take up to 30 minutes. Test it by pressing your finger lightly on top of the soap. If the top layer breaks easily, it’s not set. Once it’s firm to the touch, but not hard, use a fork to scrape down the length of the soap in a serpentine manner. The cut should only be surface-deep. This is to help the next layer cling to the first layer.
6 Melt the clear glycerin soap in the microwave. Use a different bowl and spatula than you used to melt the white soap. Drop in three to five drops of peppermint essential oil. Add enough drops of red soap color to turn the soap bright red. It shouldn’t take much.
7 Pour the now-red glycerin soap on top of the white soap. Spray the top with rubbing alcohol. Wait for the soap to set, then trace a small indentation into the soap using a fork.
8 Pour another layer of white soap on top of the red soap, repeating the previous steps. You can do as many layers as you like. However, if you plan on doing many layers, plan to make them very thin.
9 Once the entire soap bar has set, gently pop it out. Using a strong knife, possibly one that is curved, cut the soap bar into smaller bars, or pop them out of the soap mold.