These pressed salt soak cakes combine mineral salts, coconut milk powder, colloidal oatmeal, and a small amount of oil or butter to create a compact bath soak that can be dropped directly into warm bath water.
Formula
| Dry Ingredients | Amount |
|---|---|
| Epsom Salt | 400 g |
| Dendritic Salt or Sea Salt | 100 g |
| Baking Soda | 100 g |
| Coconut Milk Powder | 20 g |
| Cream of Tartar | 20 g |
| Colloidal Oatmeal Powder | 10 g |
| Sodium Cocoyl Isethionate (SCI), optional | 10 g |
| Colorant, optional | As desired |
| Wet Ingredients | Amount |
|---|---|
| Fragrance Oil or Essential Oil | 17 g |
| Distilled Water or Hydrosol | 15 g |
| Polysorbate 80 | 5 g |
| Butter or Oil of Choice | 2 g |
Method
- Combine all of the dry ingredients in a large bowl and mix thoroughly.
- If using colorant, add it to the dry mixture and blend until the color is evenly distributed.
- In a separate container, combine the fragrance or essential oil, Polysorbate 80, and your chosen butter or oil. Add this mixture to the dry ingredients and mix thoroughly.
- Gradually add the distilled water or hydrosol, mixing well until the mixture holds together when compressed.
- Press into your chosen mold and allow the cakes to dry completely before packaging.
Using the Electra Press
When using the Electra Press with the 3-inch mold, keep each cake at approximately 6 ounces or less. Salt soak mixtures are denser than bath bombs and do not compress as much, so overfilling the mold can make pressing more difficult. That matches the note in your original version.
Fragrance
Always check the applicable usage rate for the specific fragrance or essential oil you are using and adjust the amount if necessary.
Maker Note
This formula is intended as a starting point. Small adjustments may be needed depending on your salts, colorant, fragrance, humidity, and mold.
Yield: Approximately four 6-ounce pressed salt soak cakes
Shop the Ingredients
Need supplies? Many of the specialty ingredients used in this formula are available from Muddy Soap Co.
Made it? We’d love to see it!
If you make this formula—or put your own spin on it—share your creation and tag Muddy Soap Co. We love seeing what our makers create.