My big bag of cypress mulch has been sitting on my porch, which is kinda closed in - but accessible to bugs and such. I need to change out my Ball Pythons tank and was wondering about cleaning the cypress? It has been well past freezing for weeks now - would that have killed anything that may have crawled into it? Obviously, I have to get it back to room temperature before I add it to the tank - but I was wondering if I should bake it? To bake it, would this be right?: Oven at 300ºf, lay out the mulch on say cookie sheets (or could I use cake pans and make the layers thicker) and bake it for 10 minutes? Thanks!