Thank you Deborah. I do understand your points, and as I mentioned have no reason to believe I have mites, as I do follow quarantine procedures when acquiring new snakes etc. but just wondered if I could make doubly sure by taking advantage of current temperatures. I'm always a bit apprehensive when buying shavings etc., in case the store itself might have, or have had, a mite infestation. I guess I'm just paranoid. LOL