How does a kitchen become kosher?
A kitchen (residential and industrial) that is not kosher can become kosher through the process of “kashering.” Ovens, stove tops, microwaves, sinks, vessels (pots and pans), silverware, and nonporous counters are all made kosher through specific techniques including cleaning, boiling water, heating (with ovens and blow torches). Consult your local rabbinic authority for guidance.
