Ingredients
The main ingredients are baking soda, citric acid and corn starch, which also holds everything together. Try experimenting with different scents and colors.
Mixing
Make sure to use two different bowls for mixing the ingredients, one for the powders and one for the liquids. Mixing the liquids at the sametime will activated the mixture.
- 1/2 cup Baking Soda
- 1/4 cup Citric Acid
- 1/4 cup Cornstarch
- 1/4 cup Epsom Salt (or sea salt)
- 3 tsp Castor Oil (or any vegetable oil)
- 1 tsp Essential Oil
- Soap or Food Coloring
- 1 tbs Water
Mixing the liquids
To keep the ingredients from activating while mixing, you’ll want to add oils, scents and dyes in small amounts at a time.
Once it’s all nicely blended, we’ll need to pack the mix into the molds as tightly as possible.
Packing molds
Pack the mold by layers, making sure to pack each layer down as tight as you can.
It’s a good idea to pack more than necessary so the two halves fuse together.
Join molds
Join the two halves together by pressing them tightly and remove the excess from the sides.
Try to smooth out those edges so there’s less of a seam.
Drying
To hold the two parts together, we can use a few rubber bands while the mold dries. We can let the bath bombs dry overnight.
For faster drying, you could pop them in the freezer for about 15 minutes.
Demolding
With our mix fully dry, we can demold by tapping and squeezing on the sides until they come loose.
Now there we have it! An icosahedron bath bomb - super cool!
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