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Q. My son suggested we kasher our countertops by running a hot iron over them. Would this work?
A. One cannot kasher a counter with a clothing iron without any water present. [The exact details as to why are beyond the scope of this Guide.] Theoretically, hot water could be put onto the counter and then the iron could be used to bring that water to a boil, but it would be too difficult to know if every spot came into contact with boiling water (or if, instead, the water only hit certain spots), so we would not recommend it.