Hello all, I am new to this forum as of today. My issue is that I work in a prison and metal and glass containers are not allowed to be brought in as they can be made into weapons by the inmates. I am trying to go plastic free, but I am unable to think of anything that I could use at work to heat my lunch in (we only have a microwave). Is there some type of large bowl, perhaps wood or something else, that can be heated in a microwave and is large enough to heat up a large bowl of oatmeal, soup, etc. And it would need to have a lid also for transporting. Thank you.