Avocado + Spearmint Cold Process Soap Tutorial
Serves: 3 pounds of soap
This project uses real avocado for skin loving properties, along with spearmint essential oil for a crisp scent.
  • 10″ Silicone Loaf Mold
  • 3.5 oz Avocado Butter
  • 5.2 oz. Avocado Oil
  • 1 oz. Castor Oil
  • 7.7 oz. Coconut Oil
  • 8.8 oz. Olive Oil
  • 8.8 oz. Palm Oil
  • 5 oz. Sodium Hydroxide Lye
  • 7.2 oz. Distilled Water
  • 3 oz. Fresh Avocado + 1.5 oz. Distilled Water
  • Spirulina Powder
  • French Green Clay
  • Poppy Seeds
  • 2 oz. Spearmint Essential Oil
SAFETY FIRST: Suit up for safe handling practices! That means goggles, gloves and long sleeves. Make sure kids, pets, and other distractions and tripping hazards are out of the house or don’t have access to your soaping space. Always soap in a well-ventilated area.
COLOR PREP: Disperse 1 tablespoon of the spirulina powder into 1 tablespoon lightweight liquid oil such as sunflower or sweet almond oil. Use a mini mixer to get rid of any clumps. Then disperse 1 tablespoon French green clay into 2 tablespoons distilled water; the mixture will become quite thick. Clay is dispersed in water due to help avoid cracking due to the clay's tendency to absorb moisture.
PUREE PREP: In a small container, measure out the 3 ounces of fresh avocado pulp (no skin). Add 1.5 ounces of distilled water, and use a stick blender, food processor or blender to blend until smooth. Set aside.
  1. Slowly and carefully add the lye to the water and gently stir until the lye has fully dissolved and the liquid is clear. Set aside to cool.
  2. Melt and combine the coconut oil, avocado oil, avocado butter, olive oil, castor oil and palm oils (remember to fully melt then mix your entire container of palm oil before portioning). Once the lye water and the oils have cooled to 120 degrees or below (and are ideally within 10 degrees of each other), add the lye water to the oils and stick blend until thin trace. If you’d like a harder bar of soap that releases faster from the mold, you can add sodium lactate to the cooled lye water. Use 1 teaspoon of sodium lactate per pound of oils in the recipe. For this recipe, you’d add about 2 teaspoons sodium lactate.
  3. Once the mixture has reached a thin trace, add the avocado puree, all the dispersed spirulina powder and all the dispersed French Green Clay.
  4. Stick blend the additives into the soap until completely smooth. Add the spearmint essential oil, and stick blend using short pulses until incorporated. You don’t need to worry too much about the batter becoming thick. In fact, you want a nice thick trace! But, the soap still needs to be workable.
  5. Pour all the batter into the mold, concentrating the batter in the center.
  6. Use a spoon or spatula to begin mounding the soap batter into the center. If the soap is not thick enough to hold a shape, allow it to sit for several minutes to firm up slightly. Continue to build the soap in the center until you’ve created a large peak.
  7. Once you’re happy with the height of the soap, use the side of a spoon to create divots/texture into the peaks. There is no right or wrong way to do this, just keep playing with the soap until you’re happy with the look.
  8. Once you’re happy with the top, sprinkle poppy seeds in the center of the peak. Spritz the top of the soap with 99% isopropyl alcohol to avoid soda ash. Then, place the soap in the fridge or freezer for 4-24 hours. Doing so will help prevent gel phase and glycerin rivers. Remove from the fridge and allow the soap to harden in the mold at room temperature for 3-4 days. Unmold, and cut into bars.
Recipe by Soap Queen at https://www.soapqueen.com/bath-and-body-tutorials/avocado-spearmint-cold-process-soap-tutorial/