bishul Archives | Rosh Yeshiva Responds

Kashering Teflon

1 05, 2023

Kashering Teflon

May 1st, 2023|Kashrut|

https://pixabay.com/photos/pan-cook-fry-frying-pan-554072/

QUESTION

New York

Someone purchased a new T-Fal frying pan and used it once and left it to wash. After some time, she could not remember if she used it for turkey meat Sloppy Joe’s or dairy French toast and scrambled eggs. How should she treat it going forward? Can it be kashered?

ANSWER

Rav Moshe’s position is that teflon can be kashered—see Igros Moshe EH 4:7, and a good number of poskim agree—and I feel that that is a position that can be followed without hesitation (especially since once it is eino ben

28 03, 2023

Hosting an Intermarried Converting Couple for Yom Tov: Managing Bishul Akum and Kashrut

March 28th, 2023|Bishul Akum, Geirut and Geirim, Kashrut, Yoreh De'ah|

QUESTION

Minneapolis, MN

I’m working with two couples for giyur (conversion).

The first couple (couple #1) is close to finishing—they eat only kosher but have not yet kashered the house.

The second couple (couple #2) is intermarried (she is already Jewish and expecting a baby. The husband is patrilineal and committed to Orthodox giyur in the future.) They do not yet eat fully kosher. They also live very far from shul.

Couple #2 asked couple #1 to host them for Rosh HaShanah. Couple #1 asked me confidentially

13 02, 2023

Induction Stove Tops and Bishul Akum

February 13th, 2023|Bishul Akum, Technology, Yoreh De'ah|

QUESTION

Oregon

Question re: induction stove tops and bishul akum—what is the minimum a mashgiach in a commercial-scale kitchen would need to do? Turning on the

29 12, 2020

Non-Hekhshered Butter

December 29th, 2020|Kashrut, Yoreh De'ah|

QUESTION

Someone used non-hekhshered butter in making macaroni and cheese. They want to know if the pot and spoon is treif. The only ingredients in the butter is cream and salt. My understanding is that butter with whey could potentially be problematic because it comes from cheese making. I would assume that given

one could make an argument that the cheese itself actually is kosher
this may not come from whey
all of this may be batel

that this isn’t really a

22 11, 2020

Preparing Coleslaw on Friday Night for Shabbat Lunch

November 22nd, 2020|Orach Chayim, Prohibitions, Shabbat|

QUESTION

Riverdale, NY

Is it a problem of koveish yerakot to prepare a large batch of coleslaw Friday night, some of which is for immediate use and some of which will sit with the dressing (including lemon juice and vinegar) until lunch which improves its flavor?

ANSWER

Shulchan Arukh OC 321:3 says that pickling is forbidden on Shabbat because it is like cooking, although not Biblically, obviously, because it doesn’t use fire.

In this case, if one were to eat it all at once, nothing would

15 11, 2020

Is a Ladle Keli Sheni or Keli Rishon

November 15th, 2020|Orach Chayim, Prohibitions|

QUESTION

Riverdale, NY

Can one rely on the ladle as a keli sheini in order to (on Shabbat) put cheese on top of pareve chili once that pareve chili has been ladled from the crock pot insert (removed from the heating element) into a bowl?

ANSWER

If I understand you correctly, the question is whether the bowl is a keli shelishi, since we would be machmir for Kalei HaBishul if it were only a keli sheini. I think definitely yes.

First, it is not clear that we have to be choshesh that everything might

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