||Every male among Aaron's descendants may eat it. It is an eternal law for all generations [that it be taken] from God's fire offerings. Any [food] coming in contact with it shall become holy.
Kol-zachar biveney Aharon yochelenah chok-olam ledoroteychem me'ishey Adonay kol asher-yiga bahem yikedash.
God spoke to Moses, saying:
Vayedaber Adonay el-Moshe lemor.
(Rashi). This is because any food touching the meal offering becomes holy by absorbing some of the offering's taste (Sifra; Rashi; cf. Zevachim 97a,b). This teaches that the mere taste of food has the same status as the food itself. It is for this reason that food cooked together with nonkosher food becomes nonkosher (see Pesachim 44b, 45a). Also see Leviticus 6:20. The same is true of any taste absorbed in a pot or the like, see Exodus 29:37.