Tevilat Kelim (), in

Judaism Judaism ( he, ''Yahăḏūṯ'') is an Abrahamic, monotheistic, and ethnic religion comprising the collective religious, cultural, and legal tradition and civilization of the Jewish people. It has its roots as an organized religion in the ...

, is the immersion of certain types of culinary utensils in a

mikveh Mikveh or mikvah (, ''mikva'ot'', ''mikvoth'', ''mikvot'', or (Yiddish) ''mikves'', lit., "a collection") is a bath used for the purpose of ritual immersion in Judaism to achieve ritual purity. Most forms of ritual impurity can be purif ...

, on the occasion of their being acquired from a non-Jew.

Source

It is based upon : "Howbeit the gold, and the silver, the brass, the iron, the tin, and the lead, every thing that may abide the fire, ye shall make to go through the fire, and it shall be clean; nevertheless it shall be purified with the water of sprinkling; and all that abideth not the fire ye shall make to go through the water." {{judaism-stub Jewish ritual purity law Positive Mitzvoth Hebrew words and phrases in Jewish law