Leviticus 11:33, 35
Leviticus 11:33 AMP
As for any earthenware container into which any of these [crawling things] falls, whatever is in it becomes unclean, and you shall break the container.
Leviticus 11:35 AMP
Everything that part of their carcass falls on becomes unclean; an oven, or a small stove shall be smashed; they are unclean, and shall be unclean to you.