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Ask the rabbi Halacha Kashering Dishes

Siliquartz sink

Question
Hello Rabbi. I didn’t know much of what you wrote before. I learned something new. Thank you very much. One more question regarding this issue, if I did not pour boiling water before using the new sink, do I have to kosher my pots that I used? Or since the polish is פגום and פסול מאכילת כלב it’s not a problem? Is there a reason why a plastic made sink (siliquartz) can’t be koshered for Pesach? I mean it’s not ceramic or porcelain?(כלי חרס)
Answer
Shalom, Thank you for your question. We are glad to be of help to you. Firstly, even if you did not pour boiling water over your new sink, your pots and utensils that were used in the sink are still kosher. As to koshering a plastic sink, there are several opinions about the correct way to kosher hard plastic. As plastic is a new substance there is a debate as to whether it may be koshered as metal, by boiling water, or whether it has the law of ceramics that may not be koshered at all. Because of the strictures of Pesach many Rabbis advice that it should be covered rather than koshered with boiling water. On our hebrew website Rav Ariel shlitah rules that a plastic sink may be koshered for passover with boiling water (although he holds that the water must be boiled in the sink by filling the sink with boiling water, then inserting a boiling hot piece of metal to bring the water to a high boil). On the other hand Rav Feinstein zt”l held that plastic cannot be koshered. Blessings, Chag Semach.
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