I have had an indoor compost bin containing worms this winter, planning on transfering all to an outdoor compost bin. Now, it seems that that might not be a good idea; I purchased a black plastic bin called, "The Earth Machine", which becomes very hot in the sun and I am wondering if anyone knows what temperature the worms can withstand. (Moving the bin to a shady location is out of the question as it would be much to far to conveniently visit every day.)