Exodus 29:31

And Moses said unto Aaron and to his sons, Boil the flesh at the door of the tabernacle of the congregation: and there eat it with the bread that is in the basket of consecrations, as I commanded, saying, Aaron and his sons shall eat it.

Also before they burnt the fat, the priest’s servant came, and said to the man that sacrificed, Give flesh to roast for the priest; for he will not have sodden flesh of thee, but raw.

And the priests’ custom with the people was, that, when any man offered sacrifice, the priest’s servant came, while the flesh was in seething, with a fleshhook of three teeth in his hand;