Which materials may not be kashered via hag'alah (boiling water)?

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Library » Mitzvot » Kosher » Kosher Utensils | Subscribe | What is RSS? PRINT EMAIL COMMENT Bricks, ceramic, China, concrete/cement, Correlle, Duralex, fiberglass, glass, porcelain, porcelain enamel and Pyrex. Republished with permission from www.oukosher.org   ADD A COMMENT Please email me when new comments are posted (you must be  logged in). Email to a friend Post a comment cancel Loading...