Make sure you’re working in a well-ventilated area, away from any kids, and wearing proper safety gear. (long sleeves, gloves, goggles and a mask).
Measure out your lye and set aside.
Next, measure out the coconut milk and place it in the freezer at least three hours ahead of time. I like to pour the coconut milk into ice cube trays so they come out easily.
Remove your frozen coconut milk from the freezer and add it to a clean, large glass bowl that is safe for high temperatures. Carefully add the lye to the milk. Be ultra careful during this step as the mixture will heat up quickly due to the lye. Give it a gentle stir to ensure the lye fully coats the frozen milk. Set aside to cool.
Next, melt the oils and fats in a small saucepan over medium-low heat. Once melted, transfer them to a large mixing bowl with tall sides and set it aside to cool to about 100°F
Once the melted oils and fats have cooled to 100°F, slowly add the lye/coconut milk a little at a time and mix with an immersion blender. Continue mixing with the immersion blender until it comes to a light trace.
Then add your essential oils and continue mixing with the immersion blender until it comes to a medium trace.
Pour the soap into your prepared soap molds and allow them to harden for three days before removing them from the molds.
Lay the bars on their ends about an inch apart and allow them to cure for eight weeks before using.
Notes
Wear a mask, gloves, and apron and work in a well-ventilated area.
Make sure the jar you’re using is safe for rapid hot temperatures. Do not use the same container that you froze the coconut milk in to add your lye!
Always add the lye to the milk. Never add the milk to the lye.
Once the milk is fully melted and the lye is dissolved, set it aside out of reach of children.
Use separate utensils and bowls solely for soap-making purposes, independent from any shared regular kitchen supplies.
This recipe is made with 5% superfat. If you wish to substitute any of the ingredients, you will need to recalculate the recipe with a soap calculator.
You must freeze the coconut milk because it will scorch when the lye is added to it. The freezing process stops this from happening.
Look for coconut milk that is pure with no added ingredients. Avoid the cooler section in stores as the coconut milk there might contain additives and flavors.