Kashrus Archives - AskTheRav

If I cooked meat in an “instant pot”, is anything I cook afterwards in that pot considered Fleishig?

Question: There is this "instant pot" (pressure cooker appliance) that has its heating element in the lid of the pot, for air frying. The way this lid is designed…

Milk and meat concern when regrowing onions

Question: After cutting off and using the edible part of an onion for food, I took the leftover bottom-parts of these long green onions (i.e. basically the roots) and…

Can I use a sous vide for dairy and meat at separate times? Can I kasher it to parve and then to the other few days later?

A sous vide cannot be used for both dairy and meat. One may kasher from meat to Parve for a while, and then use it for milk. ראה…

I cut olives with a meat knife on a dairy cutting board…

...The dairy cutting board was used to cut onions a few hours earlier and the meat knife was used about 24 hours ago to cut meat. What is the…

Can one put a breast milk bottle in a fleishig dishwasher?

Lechatchila you shouldn't do it. https://asktherav.com/is-mothers-milk-considered-pareve-milchig-or-fleishig/ However, if it is rinsed first you may put it there. #10599

Can I cook food for someone if I was Mechalel Shabbos in private?

Any Yid that was (or R”L still is) Mechalel Shabbos ‘in private’, may cook food for another on any weekday. This is so long their actions remain private and does…

The new dishwashers that come with two separate doors and drawers (separate systems), is one allowed to use one for milk and one for meat?

Yes. Can they run at the same time? Yes. If you don't mind to clarify, since the two waters will drain out together and still be boiling…

Do Sardines Have to Be Bishul Yisroel?

Canned sardines are a very basic staple all over the world. However, in many places canned sardines that are bishul Yisroel (cooked by a Jew) are not available. There is a machlokes…

Is there an issue when wine only has one Hechsher – an OU?

No halachic issue. However, some hechsherim aren’t particular about reiyas goy, a non-Jew seeing their wine. See here: https://asktherav.com/wine-seen-by-a-non-jew-for-kiddush-and-general-use/ #9855

Moving into a house previously lived in by a Jew who did not keep kosher. Treif working electric oven. Can it be Kashered?

Article: Play-by-Play: The Case of the Non-Kosher Oven Scene: A newly married couple in their tiny kitchen on their first day of “real life.” She: We have a problem.…

Chodosh nowadays

It seems halachically that chadash is a real issue that happened to not be stringently kept for centuries. Nowadays it is much more practical, should one be makpid and…

I cooked rice in a pot. After, I found whole bugs in the cooked rice. I threw out the rice. Do I have to kasher the pot?

No. Sources: שו"ת הרשב"א ח"א קא. שו״ע ורמ״א קז, ב. ש״ך שם ז. פמ״ג קג במ״ז ו. וגם לדעת הצ״צ יו״ד סג שתולעים שגדלים מגוף הפרי נו״ט לשבח.…

What is the guidance of koshering freshly frozen chicken liver at home? Can I use oven for broiling?

It permissible to roast in an electric oven with the following conditions (there are those that are stringent and necessitate that roasting be done on an actual flame). Preheat…

?האם יש מנהג חב”ד להחמיר כהרש”ל שלא לערב עם חלבי מה שבושל בנטל”פ נ”ט בר נ”ט?

גם הרש״ל לא אסר מדינא ורק כתב שנהגו כן. ובנו״כ השו״ע הכריעו כולם להיתר. ולא ידוע לי על מקור ברור ע״ד מנהג אצלנו באופן אחר. וכמדומה ברור שמורי ההוראה…

If I do not eat Chalav Akum does that mean I should also refrain from eating anything that has a Hechsher and Says DE (Dairy equipment)?

Utensils that had Chalav Akum used in them need to be kashered before being used for Cholov Yisroel. One who uses strictly Cholov Yisroel should do the same after…

If a clean fleishik knife that is a ben yomo just cut onions and was then put in a blender filled with oranges. Is the status of the blender now Fleishig?

In my response I will assume, though this was not specified clearly, that the blender was originally Pareve. L’chatchilla you should treat the blender as though it has become…

I cut an onion in half with a fleishige knife. Than I continued cutting it with a parve knife. What’s the din of the onion? What’s the din of the parve knife? Whoever eats that onion becomes fleishig?

1. The onion is fleishig. 2. The pareve knife should be kashered if you want to continue using it for pareve. 3. If you eat the onion on you…

Cough Syrups that contains glycerin

Many of the Cough Syrups contain glycerin (even those given as kosher L'Pesach). Can this could still be taken to cure a cough? Does it depend on the producer?…

How long can a two-year-old go without nursing and still be allowed to nurse?

72 hours, unless weaned due to sickness or there is a state of sakana even if weaned when healthy. שו״ע יו״ד פא, ז: תִינוֹק יוֹנֵק עַד סוֹף ד' שָׁנִים…

I cut two lemon slices with a fleishig knife and added to boiling water in a milchig glass mug (not Ben-yomo) for my tea. What’s the status of my tea and mug?

The tea should be discarded and the cup is treif. Being that it's a glass cup it (should not be kashered, and) should be thrown out. דין לימוני"ש…