QUESTION

Northwest, USA

Are there any materials besides straight metal that are kasherable for sinks? I am assuming that most people can’t afford a granite sink. As far as I recall, any sort of enameled material cannot be thoroughly kashered, correct?

ANSWER

At some level – and I say this only theoretically, not to rely on – one can question whether, if someone is using a drainboard, if you need to kasher a sink altogether once it is no longer ben yomo. Chazal forbade using an eino ben yomo (lest you use it when it