Tevilat Kelim: Which Utensils Need Dipping?

Which of Your Kitchen Items Need to Be Dipped in a Mikvah?

You have just bought a beautiful new set of pots, or perhaps some wine glasses, or maybe a fancy chef's knife. Before you use them for food, there is an important step many people overlook: tevilat kelim -- the immersion of new food utensils in a mikvah (ritual bath) or natural body of water. But not every kitchen item requires this immersion. The rules depend on what the item is made of, what it is used for, and where it came from.

This guide will help you sort through your kitchen and know exactly what needs dipping, what might need dipping, and what you can use right out of the box.

The Basic Principle

The mitzvah of tevilat kelim applies to food utensils acquired from a non-Jewish source. The Torah source for this practice comes from the story of the Jewish people's war with Midian, where they were instructed to purify captured utensils through fire and water. The Sages applied this principle to any food vessel purchased from or manufactured by non-Jews.

The key factors that determine whether an item needs immersion are:

1. Material -- What is the utensil made of?
2. Function -- Is it used in direct contact with food?
3. Source -- Was it manufactured or previously owned by a non-Jew?

Category 1: Requires Immersion WITH a Blessing

The following materials require tevilat kelim with a full blessing when the utensil is used for food:

Metal Utensils

All metal food vessels and utensils require immersion with a blessing. This includes:

• Stainless steel pots and pans
• Silverware and flatware
• Metal baking sheets and trays
• Cast iron skillets and Dutch ovens
• Aluminum pans (though some have questioned whether aluminum was known in Talmudic times, the consensus is to immerse with a blessing)
• Metal colanders and strainers
• Metal serving utensils (ladles, spatulas, tongs)
• Metal cookie cutters used directly with food
• Knives (including chef's knives, bread knives, and steak knives)
• Metal thermometers that contact food

Glass Utensils

Glass vessels also require immersion with a blessing:

• Drinking glasses and wine glasses
• Glass baking dishes (like Pyrex)
• Glass bowls used for food
• Glass storage containers
• Glass pitchers used for beverages
• Glass tea and coffee pots

Category 2: Requires Immersion WITHOUT a Blessing

Some materials are subject to debate among halachic authorities. The common practice is to immerse them but without reciting the blessing:

Glazed Ceramic and Porcelain

• Ceramic plates, bowls, and mugs
• Porcelain serving dishes
• Glazed stoneware
• China

The glaze on ceramic items contains glass-like material, which creates an obligation to immerse. However, since the base material (clay/ceramic) may not require immersion, the blessing is omitted to avoid a potentially unnecessary blessing.

Enamel-Coated Items

• Enamel-coated cast iron (like Le Creuset)
• Enamel-coated baking pans

The metal base requires immersion, but the enamel coating creates some uncertainty about the blessing. Most people immerse without a blessing, though some authorities say to recite the blessing since the base is metal.

Corelle and Similar Materials

Corelle dishes are made from a glass-ceramic composite. They should be immersed without a blessing.

Category 3: Does NOT Require Immersion

The following items are generally exempt from tevilat kelim:

Plastic and Silicone

• Plastic storage containers (like Tupperware)
• Plastic utensils (spatulas, spoons)
• Silicone baking mats
• Silicone molds and spatulas
• Plastic cutting boards

Plastic did not exist in Talmudic times, and most authorities rule that it does not require immersion. However, some people choose to immerse plastic items without a blessing as a stringency.

Wood

• Wooden cutting boards
• Wooden spoons and spatulas
• Wooden bowls
• Wooden rolling pins

Unglazed Ceramic

• Unglazed earthenware
• Unglazed terracotta

Paper and Disposable Items

• Paper plates and cups
• Disposable aluminum pans -- Most authorities exempt these since they are intended to be discarded. However, if you plan to reuse a disposable pan multiple times, some authorities would require immersion.

Special Cases and Common Questions

Electrical Appliances

This is one of the trickiest areas of tevilat kelim. Appliances with metal or glass parts that contact food technically require immersion, but submerging an electrical appliance in water can destroy it. Solutions include:

• Removable parts -- If the food-contact part detaches (like a metal blender jar or mixer bowl), immerse just that part
• Have a Jewish person disassemble and reassemble -- Some authorities say that if a Jewish person performs a significant act of assembly, the item is considered newly "made" by a Jew and does not require immersion
• Give it to a non-Jew and borrow it back -- A borrowed item does not require immersion. Some use this as a workaround for appliances.
• Consult your rabbi -- Different authorities offer different solutions for specific appliances

Non-Stick Coated Pans

A metal pan with a non-stick coating (like Teflon) requires immersion with a blessing because the base material is metal. The coating does not change the obligation.

Can Openers, Peelers, and Other Tools

Kitchen tools that contact food during preparation may require immersion. A metal can opener, a metal vegetable peeler, and similar tools should be immersed with a blessing. Tools that do not directly contact the edible portion of food (like a nutcracker) may be exempt.

Items Made in Israel by Jews

If a utensil was manufactured by a Jewish-owned company in Israel (or elsewhere), it does not require tevilat kelim. However, in practice, most manufacturing involves non-Jewish workers and internationally sourced components, making this exemption difficult to apply. When in doubt, immerse without a blessing.

Items Received as Gifts

If a non-Jewish person gives you a food utensil as a gift, it requires immersion just like a purchased item. The obligation is based on the item entering Jewish ownership from a non-Jewish source, regardless of whether money changed hands.

Practical Tips

• Immerse before first use -- Get in the habit of going to the mikvah or kelim mikvah (many communities have a dedicated utensil mikvah) before you start using new items
• Remove labels and stickers -- Clean utensils thoroughly before immersing so nothing is between the utensil and the water
• Batch your immersions -- Save up new purchases and immerse them together in one trip
• Dry metal items promptly -- After immersion, dry metal utensils quickly to prevent rust or water spots
• Keep a list -- If you are unsure whether you immersed something, better to immerse again without a blessing than to use it without immersion

Tevilat kelim is one of those quiet, personal mitzvot that connects your everyday cooking and eating to something deeper. Each time you immerse a new pot or glass, you are performing an act of spiritual preparation -- making your kitchen tools ready not just for cooking but for the elevated act of eating as a Jew. For the full background on this beautiful mitzvah, see our article on the mitzvah of immersing dishes.