Note: you can substitute coconut milk, like I did, for the water simply by using 151 grams of frozen coconut milk and slowly adding the lye to the milk until the lye is dissolved. You can also use colorants. I have not had issues with this soap overheating or acting strangely in gel phase, but keep and eye on it, and remove some insulation if it appears to be getting too hot. Also, you can opt not to gel this soap and instead put it in the freezer overnight. The cream might make the soap heat up in the refrigerator, so it might need the additional chill of the freezer to prevent gel phase if you choose not to gel.