Questions tagged [kashrut-kosher]

Kashrut (also kashruth or kashrus, כשרות or כַּשְׁרוּת) is the set of Jewish dietary laws.

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Mushrooms from the carcass of a non-kosher animal

Some Mushrooms can grow from decomposing animals. Would there be any (kashrus) problems with having mushrooms that grow from the carcasses of non-kosher animals?
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Halachic status of Beefalo

I just learned of the existence of the beefalo: I was wondering: a. Is it considered Kil'ayim (a forbidden hybrid)? b. Is it kosher, that is, can it be slaughtered and eaten (I think this would ...
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Tikkun for Timtum HaLev

Is there teshuva/tikkun for timtum halev (specifically for forbidden foods)? Please cite sources.
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Is fur fleishig?

Is fur fleishig? My thinking is, not edible -> not food -> not fleishig. But I dunno. (This question is pure silliness and not practical.)
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Can water that never touches food have a (non)kosher status?

I recently read the OK "Kosher Spirit" magazine, including an article about canned vegetables and kashrut concerns. The article reviews the steps in the production of canned vegetables and ...
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Why must animals be conscious when slaughtered?

EU court rules states can mandate stunning animals for slaughter reports: Animal rights activists had pushed for the ban which could prevent kosher and halal ritual slaughter which requires livestock ...
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Are frozen organic blueberries kosher?

Do frozen organic blueberries require certification / checking for insects? Apparently, according to the CRC and Star-K, frozen blueberries should not need kosher certification. Is this also the ...
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Eating non-kosher food without swallowing?

We find several places in which you would be liable for eating non-kosher food. Let’s say someone placed the non-kosher food in their mouth, began to chew, but did not swallow. Would they be liable ...
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Are Ricola drops pareve?

Are Ricola drops certified by Rabbi A. Yafe Schlesinger considered pareve?
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Why hasn't the coronavirus pandemic had a greater impact on kashrut supervision? [closed]

When the pandemic first began I expected dramatic repercussions to kashrut certification. Being a novice in this area I had understood that certifying organizations would need to be physically present ...
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Today's reason of wine prohibition

I can understand that in the old days non-Jewish people used to make wine for worshipping or that wine was the main alcoholic beverage and drinking a wine made by non-jews would require some ...
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Shellac Kosher, but Carmine for example isn’t how come?

Could someone explain to me on which basis/principle products like shellac are allowed to use (according to kashrut)? While products like Cochineal, Carmine, Carminic acid (E120) aren’t, because the ...
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Is a utensil used for chillul Shabbos considered non-kosher?

If a Jew cooks on shabbos, the Shulchan Aruch OC (318:1) says המבשל בשבת [או שעשה א' משאר מלאכות] [טור] במזיד אסור לו לעולם ולאחרים מותר למ"ש מיד - One who cooks food on Shabbos [or performs any ...
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Is there any kosher considerations in regards to offal / tripe? [duplicate]

If you ignore our often modern sensibilities in regards to meat eating, for argument sake. Is there any kosher consideration in regards to the less desirable parts of animals. Is questions in regards ...
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Can a practicing Jew use soap made from lard?

Is it forbidden under the Jewish religion to use soap made from pig fat or is the prohibition on pork product solely in regards to the consumption of the meat?
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Kashrus in nasal vaccinations [duplicate]

In the UK, the influenza vaccination contains pork. The nasal flu vaccine does contain hydrolysed gelatine derived from pork as one of its additives. Gelatine is commonly used in a range of ...
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Why does my liquid toothpaste's Kosher for Pesach sign have an expiration date?‎

I have an Israeli brand of liquid tooth paste from a company called Tayadent,‎ which says on it כשר לפסח תש"פ -‎ why would it matter what year it is for the hecsher?‎ Thanks
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When it comes to the handling of (non-Mevushal) Kosher wine, what defines “handling” by a non-observant Jew in the prohibition? [closed]

We are warned that when handling a non-Mevushal Kosher wine that it must only be handled by shabbat observant Jews. My question relates to the halachic definition of "handling" and what that ...
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Should one kasher keilim used with Hebrew National? [closed]

Do Keilim need to be Kashered after being used for Hebrew National hotdogs?
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Are Jews allowed to deliver for food delivery apps?

Since it's forbidden to derive benefit from milk and meat, does that mean it's also forbidden to make a living as a doordash driver who has to deliver things like mcdonalds?
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Can Salt used to kasher meat have additives [such as anti-caking agents]?

Can Salt being used to kasher meat have additives [such as anti-caking agents]? I see that some "kosher salt" companies have this added (e.g. Morton), can they still be used to Kasher meat ...
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Protein Powder certified kosher but no hescher on package [closed]

A family member bought protein powder which I believed was under OU supervision. It is 100% vegan and has no dairy derivatives which I know means nothing in the kosher world but still. It is missing a ...
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Does one need to kasher a pot that is kosher in all aspects except that kosher meat that is not glatt was cooked in it?

If one does eat strictly glatt kosher and cooks non-glatt kosher meat in a pot. Later on, a different dish with glatt kosher meat is made. Would someone that adheres to glatt kosher standards require ...
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Is the Panasonic Arc5 Shaver Kosher? [closed]

I would like to ask if these two shavers are kosher amazon.com/dp/B00JWP8F3I amazon.com/dp/B07XD5T8MN
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(Fish and) chips

Following on from the recent baguette question (what if the bread kneaders hands were dirty?) French fries cooked in a wire basket in a vat of vegetable oil used only for that purpose. In a diner with ...
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Do these tissues have 4 or 5 rabbinical certifications?

In the image below: Rabbinical ishur (certification) of the suitability of the facial tissues. Certification that they are not made from recycled seforim (which probably means that the paper is non-...
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Are all French baguettes intrinsically kosher?

According to French law, all baguettes must be made of only wheat flour, water, salt and yeast (source). So, do Jews who keep kosher (and eat pas palter) in France eat baguettes from plain ...
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What is the Talmudic source for the idea that any halachic question has numerous answers?

I remember hearing a story about a rav who was going for smicha and was challenged first to explain 100 reasons for why a chicken was kosher and then afterwards challenged to provide 100 reasons why ...
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Kashrut- steam from meat

If steam from a cholent pot condensed on the cover and then the liquid from the cover fell onto a pareve container, is the container now meat?
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Should one recite a bracha for non-kosher meals? [duplicate]

If a Jew who doesn’t keep kosher eats a meal (like non-kosher beef), is it permissible, forbidden or necessary to say some sort of brachot before and after eating? My initial guess would be no since ...
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Usage of Parev Vs Parve

I see some kosher items that on the kosher label it is written Parve where as others Parev. In Hebrew, we say Parve. What is the source for Parev? Why are there 2 slightly different words for ...
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Do “ou” certified greens need to be washed and checked? [closed]

If a salad mix of greens just has a plain "ou", does it require checking?
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Do decorations on glasses absorb? [closed]

We are Sephardic and follow the opinion that glasses can be used for both meat and milk, whether hot or cold, because glass never absorbs. According to this opinion, are glasses with decorations on ...
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Goy eating matzah with treif

For context, my fiance is a reform convert in the UK. I fully support their conversion but, as I lack any real spirituality, do not feel I could sincerely convert myself (despite knowing that my lack ...
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Does melatonin need to be kosher?

I'm not certain if it's medication or not. I'm speaking of plain, non-flavored powder capsules.
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Why can we have soy cheeseburgers but not chicken parmesans? [duplicate]

It is my understanding that one can't eat chicken with dairy because the rabbis made enactment due to chicken and meat looking similar and someone may err and eat meat and dairy together. if that is ...
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How can cheese which be both kosher for Pesach and use “unsupervised milk” (cholov akum)?

A certain Kashrus authority supervises cheese which is both kosher for Pesach and uses “unsupervised milk” (cholov akum). What level of supervision for cheese is needed to ensure it is kosher for ...
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Davar Charif for onion powder and garlic powder

Are garlic powder and onion powder considered a Davar charif?
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Do pre-washed and packaged vegetables and greens fall under a miut she'eno hamatzui? [closed]

Does anybody know if the tolaim level in triple-washed lettuce bags is a miut sh'eino hamatzoi. I am specifically asking regarding the popular company "Organic Girl" which is sold in every heimesh ...
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Source that there's timtum halev on a derabanan

The Rema Yoreh Deah 81:6 writes: לא תאכל המינקת אפי' ישראלית דברים האסורים וכן התינוק בעצמו כי כל זה מזיק לו בזקנותו The wetnurse, even a Jewish one, shouldn't eat forbidden foods. Similarly ...
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Why Fins and Scales?

The Torah (Vayikra 11:9) writes אֶת־זֶה֙ תֹּֽאכְל֔וּ מִכֹּ֖ל אֲשֶׁ֣ר בַּמָּ֑יִם כֹּ֣ל אֲשֶׁר־לוֹ֩ סְנַפִּ֨יר וְקַשְׂקֶ֜שֶׂת בַּמַּ֗יִם בַּיַּמִּ֛ים וּבַנְּחָלִ֖ים אֹתָ֥ם תֹּאכֵֽלוּ - These you may ...
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Pikuach nefesh and matzoh shopping [closed]

Apropos of this viral post: https://twitter.com/Dr_Ophelian/status/1247386646317633536. My understanding is that the principle of pikuach nefesh is not applied like this, but I am not certain why. ...
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Are American Paskesz Products Yoshon?

Are American Paskesz grain products, such as Mini Trios Bites, yoshon year round? Is there a way to determine from, e.g., a package code if/when they are yoshon? (Paskesz cookies under Rav Westheim ...
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Eating with a plate that had non-kosher food on it at one point in the past [closed]

In light of this quarantine, If someone is spending shabbat at non-observant relatives and the house is not kosher. If the person runs out of paper plates, would he be able to eat from a glass plate ...
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How does one kasher fabric without a washing machine?

Most websites say fabric can be kashered by putting it in a washing machine set to 'hot'. How would would one without a washing machine kasher fabrics? By Hagalah, washing with yad soledes bo water or ...
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Waiting 24 hours to Kasher [closed]

When someone kashers a utensil, a 24 hour waiting period is required. Is the 24 hour wait after the last use or after it is washed?
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Granite and Kashrus

What is the status of granite: year-round vs pesach in regards to Kashrus. Granite for Pesach is kashered by pouring boiling water over it. Year round, what is the status of granite, can granite be ...
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In the middle of cooking, someone realises the pot they are using was previously used for non kosher food

If someone accidentally starts to cook kosher food in a pot that was used to cook non-kosher food, but the pot wasn't used in 24 hours, may the person let the food finish cooking?
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Nullification of non-kosher utensils or dishes

If an unidentifiable non kosher utensil or vessel gets mixed up with kosher vessels, if the majority of vessels are kosher, it is nullified. [1] If someone makes this mistake a million times, are all ...
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Can a glass stovetop be used for both meat and milk?

Is it permissible to use a glass stovetop for both meat and milk? Or is it forbidden? A OK article says that one should not use a glass stove top for meat and milk, however rabbikaganoff Is My Stove ...

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