Talk:Milk and Meat in the Kitchen

See Rabbi Jachter's "Sephardic Savvy: Demystifying 101 Differences between Sephardic and Ashkenazic Practice" p. 312. This is a response:

• I would think that according to Rav Ovadia corelle is also glass for meat and milk. http://halachayomit.co.il/en/default.aspx?HalachaID=4337 (English version written by Rabbi Elbaz from Great Neck) writes that Rav Ovadia would also permit corelle for meat and dairy. I saw this article quote Rav Sheinberg saying that corelle is the same as glass for shulchan aruch. https://ohr.edu/ask_db/ask_main.php/38/Q1/. Also, Rav Schachter writes that we follow the majority ingredient for judging the makeup of a kli.
• It is made with different ingredients than pyrex but they’re both majority sand and then has other rock and chemical ingredients. Either way, Rav Ovadia’s teshuva 4:41 about pyrex doesn’t deal with its ingredients, he simply says it is glass because it is שיעי וקשים which is smooth and hard and if that’s true of pyrex then it is also true of corelle which are even smoother and shinier than pyrex. I don’t think I’d rely on it lechatchila but I think it is the minhag bedieved.
• Pyrex is made of 60-80% silicia sand, 5-20% boric acid, 5% flexes (soda ash, potash and lithium carbonate), 2% stabilizers (barium carbonate, zinc oxide)), other (coloring with silver compounds, oxidizing) http://www.madehow.com/Volume-7/Pyrex.html
• Corelle is made of 65% recycled glass, 35% of a combination of sand, salt, lime, feldspar, two other types of salt https://www.youtube.com/watch?v=eW8egUCzw-k
• (A possible svara to add is that the entire discussion of whether stainless steel can have beliyot. Many of the arguments to asur aren’t so pashut for Sephardim who m’ikar hadin follow teyemat kefila and lechatchila can cook in a utensil that has a small amount of beliyot that will always be batel. The topic is too long to discuss here but according to Rav Schachter who says that the only reason to be machmir on stainless steel is because of a minhag I don’t think that’s shayach here because there’s no minhag on corelle, especially for Sephardim. Even according to those who say that we should be machmir because of the lo plug rabbanan that things are boleh completely that isn’t shayach when we know that it isn’t boleh completely as in the teshuva of the Rama by wine barrels treated with non-kosher fats that it is tried and tested and so it is like there’s teymat kefila on every dish.) --YitzchakSultan (talk) 02:15, 24 April 2020 (UTC)