I dunno. As she said- you're just going to burn it anyway. As long as you use a dedicated pan for melting it so there's no chance of getting ick stuff in anything else? It would be interesting to try and track down what they REALLY do with the wax from beauty procedures; I'm willing to bet they do something to purify and reuse it in some industry or other-- maybe not food or beauty, but there's a lot of other uses for that stuff.