Leviticus 6:27-28

27If anyone or anything touches the meat they will become holy. If the blood touches the clothes of a person, he must wash them in a holy place.

28If a person cooks the meat in a clay pot, he must break the pot. He must break it when he has cooked the meat. If a person cooks the meat in a metal pot, he must wash the pot. He must wash it well when he has cooked the meat. And he must wash it again with clean water.