Questions tagged [kashrut-kosher]

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

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Kashrus in vaccinations

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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Milk utensil found in meat cabinet [closed]

Say one has 2 cabinets, one for meat, one for milk, and found, for example, a milk knife in the meat cabinet and are uncertain as to how it got there. Say they are uncertain as to if it was washed in ...
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Are there levels of treif

Leniencies aside, are there levels of treif? For example: In case of need is it better to eat chicken road kill than rabbit road kill? In case of need, is it better to eat cheeseburger than bread on ...
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Pesach take out in Jerusalem

Is there a list of Pesach take out stores or private people that offer cooking for Pesach in the Jerusalem area with the Rabbinical Supervision they are supervised under?
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Grocery Store Kosher Section

I work for a 4 store chain of employee owned grocery stores in Northern California that feature small, shelf stable, kosher foods sections. In reviewing these sets in our stores I feel like they could ...
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Convert issues when visiting family (eating) [duplicate]

I’m wondering if converts or even just Jews visiting less religious family members or friends have special travel sets of dishes they use when they visit. Is this allowed under the kosher rules? I ...
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Is there a list of kosher duck species?

A while ago, I asked a mashgiach what type of duck is typically sold in the U.S. kosher market? He said mallards. My area has many mallards in nearby ponds. But, I also see teals and wood ducks as ...
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How is Isaiah 66:17 to be understood if pork will become kosher when the Messiah comes?

The Ritva, R. Yom Tov Asivelli (in the 13th century) wrote that pork will become kosher when the Messiah comes: (קידושין מט:) ועליהם אמרו בהגדה למה נקרא שמו חזיר שעתיד הקב"ה להחזירו לישראל לעתיד ...
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How can Imitation Crabmeat be kosher? [duplicate]

BH This is one that I still have a problem wrapping my head to understand how this is possible. I remember my rabbi teaching me Torah and Exodus 23 reads ... You shall not boil a kid in its ...
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Are Double oven Kosher [closed]

I am planning on upgrading my kitchen but and I was wondering if a double oven could be kosher if 1 oven is just meat and one is just dairy.
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Is bee pollen kosher?

Other then having dubious reputation as nutritional supplement, is bee pollen kosher? I remember reading somewhere it may contain bee parts, but I can't find it now.
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What category are microorganisms considered in terms of kashrut? [duplicate]

Bacteria and are commonly placed into various foods and meds. Tap water contains microorganisms, typically. What category are these considered, and why do they not require kashrut? Are they considered ...
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Does the torah prohibit the consumption of Raw Meat for everyone?

Backstory I am a Noachide who started to experiment with a raw meat diet, after watching videos such as this: https://www.youtube.com/watch?v=v-cuT7q1dZ4 It has certainly peaked my interest, and now I ...
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How can something be kosher if it “may contain” milk, crustaceans, shellfish, etc.?

I noticed that this nutrition label: says that it is both Kosher and Pareve, but it also says "may contain … milk,… crustaceans, shellfish". How is that possible?
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What is the difference between non-kosher food and insects regarding “transference”?

My understanding of the "transference" of non-kosher status to a kosher item. If I cook a non-kosher piece of chicken in the same pot as a kosher piece of chicken, the kosher piece and the pot are ...
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Who is the underlined square k certification

I recently noticed that some Ronzoni pasta does not have the OU as in the past. Instead it has the underlined square k. Does anyone know which certifying agency this is?

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