Wood is ok, better stainless or one of the new teflon coated cases if you do not scrape. Damn, you would love the oil and it is easy, but parents can be a buzz kill. I used to cook up Hawaiian wood rose tea with my dad around, he could not believe we could get high on it. oh well.

Again, wood is ok, porus so it will absorb some resin, but after a while it will make no difference. Cant you wait til your parents go out?