Cold-process soap is probably every soaper’s preferred method, but if I need a batch of soap in just a couple of weeks instead of six, or if I’m too intrigued by a new recipe or essential oil to wait out that long curing time, then it won’t be long before I’m setting up my crockpot.
Before you make crockpot hot-process soap with me, you need to have your own recipe, because I’m NOT telling you my super-secret Crisco soap recipe, and you need to know how to keep yourself safe while working with lye. So if you, too, have a crafts-only crockpot at hand, and a soap recipe that you’ve been itching to try, then plug that baby in, because we’re going to make ourselves some soap:
Read your soapmaking recipe to find out how much water you’ll be using to make your lye solution. Measure that water out so that it has time to come to room temperature.
Using an accurate scale, measure out all the oils called for in your recipe. Put the oils in your crockpot, turn the temperature to high, and let them melt while you prepare your lye solution.