I mention that I do use lye, which all soapmakers must use, even the glycerin and all-natural ones. I say that lye is like baking soda, it's a chemical used up in the process of making the thing (see, now I'm gently telling them they eat chemicals all the time). And that I use food grade lye, the kind used for pretzels, since it is the purest. It's gone well so far.