How-to Toivel: By the OK Kosher Certification
Before toiveling equipment one must ensure that it is clean from any dirt, rust or company stickers, unless it is a tag that adds value to the equipment (such as a prestigious company, brand or country sticker).
Care must be taken that water reaches all sides of the vessel at once, and that no air is trapped in the vessel.
Only a mikvah which is kosher for tevilas nashim or a designated keilim mikvah may be used for utensils.
Before immersion one holds the vessel and says the following blessing: Baruch… Asher Kidshanu B’Mitzvosav V’Tzivanu Al Tevilas Keilim (or keli, for a single item).
One then proceeds to dip the vessel once in the mikva water. There are different minhagim regarding the number of times the vessel should be immersed. Consult your rabbi if you do not know your family minhag.
TOIVEL WITH A BROCHA
Metal and glass only
Metal cutlery, pots, pot lids, pans
Crock-pot (only metal and glass insert)
Barbeque grill (only the grill itself)
Rack and trays of a toaster oven
Sheet pans & baking pans
Electric Griddle
Steel knife (even with wooden handle)
Grater for finished product
Pizza cutter
Peeler with metal blade
Corn on the cob holder
Ladle, spatula and mixing utensils
Food processer (at least metal blade and parts)
Electric water heater (or ask a rov)
Popcorn maker (or ask a rov)
Crystal Pitcher
Glass cutting boards
Pyrex baking dishes
Tin or glass salt shaker
Metal or glass dishes for both storage and serving
TEVILA IS IN QUESTION
Plastic, nylon, Formica, melamine, rubber
Disposable aluminum (2nd use)
Toaster
Electrical equipment
Large equipment
Rolling pins, cookie cutters
Metal flour sifter
Egg pot
Coffee Grinder
TOIVEL WITHOUT A BROCHA
* It is preferable to toivel together with a vessel that requires a brocha.
Glazed Porcelain, ceramic and china
Enameled iron dishes
Food processor (if used for raw product only)
Nut crackers (some say with a brocha)
Tin cans, metal containers for storage
Glass containers for storage
Glass thermos and bottles
NO TEVILA REQUIRED
All earthenware, stone, wood, leather
Pottery (unless glazed)
Wooden cutting board
Wooden ladle
Razor knife, pocket knife or scissors (unless used permanently with food)
Netilas Yadayim cup
Drying rack
Milk bag pitcher (common in Israel)
Can opener and cork screw
Knife sharpener
Stove grates, burners, blech
Ovens (and oven racks unless they come in direct contact with food)
Electric hot plate (unless food is placed on it directly)
Induction cooker
Lid of baking dish and barbeque hood
Glass microwave tray (unless food is placed on it directly)
Motor for electrical appliances
Equipment manufactured and owned by a Jew
VIDEO: Rabbi Nachman Wilhelm of onlinesmicha.com speaks about tevilas keilim
As far as I know, if you plan to re-use it after first use, it requires brocho even for first use. Ask your rov.