[Avodah] Can one kasher drinking glasses for Pesach?

[Prof. L. Levine]

>From today's OU Kosher Halacha Yomis


Q. Can one kasher drinking glasses for Pesach?

A. Shulchan Aruch (451:26) writes that glass does not absorb and therefore does not need to be kashered. However, Rama (Orach Chaim 451:26) writes that the minhag of Ashkenazim is that glass that had been used with hot chametz may not be used on Pesach even if it was kashered. There are two reasons given for this. One reason is because we compare glass, which is made from sand, to cheres (earthenware), which is made from clay. Just as cheres cannot be kashered, likewise glass may not be kashered. The other reason is because we are concerned that one might not kasher glass properly for fear it might crack. Chayei Adam 125:22 writes that if it is difficult to purchase new drinking glasses for Pesach, glasses, which are used primarily for cold drinks, may be kashered with hagalah.

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