Make seaweed soap by adding seaweed to a two-pound block of melt-and-pour soap base. Ready the soap, a cutting board, a food scale, a glass bowl, a large knife, a soap mold, scented oil, a mixing spoon, rubbing alcohol, a measuring spoon and a microwave. Have spirulina powder or nori sheets at hand. If you use nori sheets, you will need a blender as well.
- Make the base
Chop the melt into small cubes on a cutting board with your knife. Place these cubes in a glass bowl, and put the glass bowl in the microwave. Melt the soap in 30-second increments, stirring after each round.
- Add scent to the base
Weigh 26 grams of scented oil. Pour the oil into your soap base and stir to distribute the oil evenly.
- Add the seaweed
Add several tablespoons of spirulina powder to the soap. Alternatively, blend two sheets of nori seaweed and add it to the soap base. Stir gently.
- Pour soap into the mold
Pour the soap mixture into your soap mold. Spritz the soap with alcohol to remove air bubbles.
- Let the soap set
Allow the soap to set. Speed the process by placing the mold in a refrigerator. Remove the soap from the mold when complete.