NOTE: This project and these instructions have been written for someone who has experience making soap and knows the potential dangers due to working with sodium hydroxide. It will not outline all safety methods of working with dangerous chemicals, it is simply a soap recipe for advanced soapmakers.
- Put on your protective gear. This is very important since you will be working with an extremely caustic base that can and will burn you if you touch it. Noxious fumes are also released from the exothermic reaction that occurs when you mix the sodium hydroxide with water.
- Prepare the lye solution by weighing the water and lye in two separate containers. Pour the lye into the water, carefully mix in a well-ventilated area and set aside to cool while you prepare your oils.
- Measure the oils and butters in the glass bowl and melt in the microwave. To mix your color, pour a small amount of the oils into your plastic beaker. Add colorant and mix well with mini mixer. Set aside remaining oils for later.
- In separate plastic beakers measure out fragrance oil, sodium lactate and vanilla color stabilizer and set aside.
- When the lye/water has cooled to 120ºF or below, add the sodium lactate to the lye/water and mix well. Combine your fragrance and stabilizer together and mix well.
- When the oils/butters are also below 120ºF pour the lye mixture into the oils/butters and stick blend until you reach a light trace. Add the fragrance/stabilizer mixture and mix by hand or with a few short bursts of the stick blender.
- Pour half of the batter (12 oz.) into the funnel pitcher. Add the premixed green colorant from earlier and mix well. Pour green batter into mold and tap the mold on the counter to release any air bubbles.
- Gently spoon the remaining uncolored soap batter into the mold and tap the mold on the counter to release any air bubbles. Using a spatula, you can smooth out the soap.
- Allow to set at least 24 hours or longer until soap is firm enough to unmold. Remove soap from mold and slice into bars.
- Let soap cure 4-6 weeks. Package and label accordingly.