Weigh the water in a plastic or glass bowl and take it outside or to a ventalated garage where no pets are able to access it. Weigh the lye into a zip close bag and set aside. Put on goggle, gloves, and a charcoal mask and pour lye into water and stir until dissolved. Allow to cool to around room temperature.
7 ounces water, 3.25 ouncess lye
Pour the lye water into the slow cooker and blend on and off until light trace. Be careful, becuase some cookers are shallow enough that it may splash.
When it reaches light trace, cover with the lid and make sure the slow cooker is n the lowest setting. The soap will slowly bubble from the outside of the cooker in to the middle. When it reaches the middle, remove the lid and add essential oils and blend.
Scoop the soap into the mold. Bang the mold gently on the counter and let it cool. When it's hard enough it is ready to use. I usually leave mine overnight.