Sticky oven rack -- silicone grease?
My bottom oven rack (the non-removable one) is really sticky. It feels like it really needs to be lubed. What is safe to use? I've read some people recommend silicone grease (the automotive stuff). I've also heard of food grade silicone lubricant, but it is only heat safe up to 350 or 400, so that sounds like a bad idea.
Any advice? Thanks.