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

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Contemporary approaches to kashrut of dates

What are contemporary approaches regarding dealing with bug infestation of dates? Do Kashrut agencies (e.g. the Orthodox Union) regularly inspect crops to determine infestation levels? And if so, what ...
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Lucky Buddha Beer

does anyone know if the beer lucky buddha beer is kosher? it is a beer made in china? does anyone know if it has been certified kosher by any establishment? Please let me know
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Beef Jerky by a non frum person

Can a person make beef jerky in his house if he is not frum. if he says his house is 100% kosher and all his utensils are kosher but he does not keep kosher outside of his home nor does he observe the ...
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Eating in a restaurant that is not under the beth din

Can one eat in a resturaunt that claims to be kosher, yet does not have a certified kashrut certificate from the local beth din? Is this a violation of a prohibition by the owner? Does the owner have ...
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Do kashrut agencies inspect pickling spices for insects before adding them to brined meat?

I noticed that pickled meats such as corned beef, pastrami and tongue are covered with seeds twigs and leaves. (Most of it seems to be allspice.) Considering that kashrut agencies have been so ...
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Would humans with kosher-signs be kosher?

If I genetically engineer a human to have split feet and to have a second stomach so they can chew their cud, can I eat them?
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Is it possible that Judaism would one day allow eating pork?

As far as I understand, pork was originally banned from consumption since it was hard to maintain a clean enviroment for pigs in a desert climate (as summarized in the Wikipedia). Since nowadays ...
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Is the leviathan kosher?

The leviathan seems to be a unique sea creature, which I've always pictured as some sort of sea serpent. This is consistent with Yeshayahu 27:1's description of it as a snake (nachash). An answer to ...
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Is triangle k a reliable hechsher? [duplicate]

I heard that they're upping up their level of kashrut recently. I also heard that there are many different types of triangle k signs.
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Would a space fish be kosher?

In the episode "TKO" of the science-fiction show Babylon 5, Lt. Commander Susan Ivanova, a Jew, has dinner with her rabbi and they have a discussion about the food that they are eating. Rabbi ...
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How does a condiment become Fleishig?

Ive seen people label their ketchup or mustard or other condiments in their home as either meaty or milky or parve. How does a condiment's kosher status get changed?
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Can a Jewish, non-observant parent cook for his Orthodox child? [duplicate]

Can a Jew who understands the laws of Kashrut but is not personally observant cook for a Kosher-observant Jew? For example, can a Jewish but non-observant parent cook for his Orthodox child?
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Possibility of buying treyf meat in a kosher store

Since meat may be sold to a consumer before kashering and traiboring, it is possible that parts of meat obtained from a kosher store may not be kosher.* Ordinarily, one could guess whether the meat ...
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How do we know that non-hechshered food is not kilayim or kilay hakerem?

"Kilayim" and "kilay hakerem" are two classes of prohibitions on eating from "mixed" fields (in which more than one type of crop is planted.) "Kilayim," as I understand it, specifically refers to the ...
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How do we know that commercial fruit is not orlah/neta revai?

According to Judith R. Baskin (Cambridge Dictionary of Judaism and Jewish Culture, 2011, pp. 134-135), "The biblical law of "uncircumcised" fruit (orlah) prohibits consuming fruit picked from a tree ...
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Frozen raspberries without supervision

My wife was told by a friend that a certain legitimate kashrus organization says that frozen raspberries do not require supervision, and upon calling the organization, she was told that the process ...
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KORC - Kosher Symbol

I was in Costco today and saw chopped romaine lettuce with the KORC symbol. I was wondering if anyone knows if this symbol is accepted by the OU or other large Kashrus organizations.
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Can a Jew buy non-kosher food for a gentile?

If a Jew is entertaining non-Jews in a business setting is he allowed to buy them non-kosher food in a non-kosher restaurant?
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Is vaping prohibited?

With the rising popularity of vaping and electronic cigarettes, many might consider turning to them to stop smoking or to at least divert their habit to a healthier alternative. However, the liquids ...
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Earliest sources for hagalah

What is the earliest source explaining how to do hagalah? What is the earliest place we see detailed instructions for the hot rock method as opposed to the clay/dough method? To elaborate: If you ...
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Would a mermaid be kosher?

Tonight at religious school we were discussing Kosher laws and how to build/keep a kosher kitchen. While we were discussing different meats, one of the jokers in school asked if you could eat a ...
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Is snow Kosher? Icicles?

The recent snow storm got me thinking about this. So are you allowed to eat snow? What about icicles?
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Kashrut of Oven Mitts [duplicate]

Since kashrut often requires one to have separate sets of cooking utensils for dairy and meat, should one use separate dairy and meat oven mitts?
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Does soy milk need a hechshir

Does soy milk need a hechshir since they put in artificial things that can be trayf or its all natural and it won't need a hechshir
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Eating at Home and Maarit Ayin

Short question: is maarit ayin (מראית עין) a problem when one is home alone? Long question: assuming that in-vitro meat is pareve, even if it is maarit ayin to eat it with milk in public, would it be ...
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In vitro meat — further questions

Related to this question: Does artificial meat grown in a petri dish have the halachic status of meat? Assuming that in vitro meat becomes widespread and assuming that it would be hechshered per the ...
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Proper course for one realizing he is eating something forbidden [duplicate]

Suppose one was eating a piece of chicken, and he finds out it was from a non slaughtered chicken. Does Halacha require him to try to throw up?
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What defines “hard cheese” [duplicate]

I grew up with the minhag that after "hard cheese", one must wait for 15 minutes before one may eat meat. However, the question often arises as to what qualifies as such in terms of halacha and ...
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The Torah's list of animals with one kosher sign

I have a question that has been troubling me for many years and I have never received a satisfactory response. On March 22, 2005 THE NY Times had an article entitled Religion and Natural History ...
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Does electronic cigarette juice require a hechsher?

Does electronic cigarette "juice" need to be kosher (require a hechsher)? Does it matter what flavor the juice is?
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How was kosher cheese made before artificial rennet?

I understood that cheese is made by throwing in Stomach hide into milk and letting it congeal. How was kosher cheese made (where one's not allowed to mix milk and meat)? Now we use chemicals or ...
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1answer
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Eating in a non-kosher household [duplicate]

I am a converted Jew (mother is not Jewish, father is) who has recently began keeping Kosher. My mother is an excellent cook, and I greatly enjoyed eating what she made growing up. I still would like ...
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How big can insects be before falling into kashrut halacha?

So we typically clean vegetable matter of bugs because, while it isn't an aveirah to eat a bug part if it's smaller than a(n) (halachic) olive, it is still prohibited to eat any non-kosher living ...
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1answer
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What can you look for to ensure that a vegan restaurant is Kosher? [duplicate]

Vegan restaurants claim to serve strictly vegetable and plant-based meals. They would seem to be automatically Kosher, but I've read and heard that there could be other Kosher issues. What are ...
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Milk-free cheese: Is it kosher? Parve?

So according to this article, scientists have created cheese by inserting DNA blueprints into a yeast. Essentially, the milk proteins are being created outside of any animal, through genetic ...
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Whatever happened to plumbas?

Not so many years ago, a plumba (apparently created by Rabbi Jacob Joseph) -- a metal tag attached to the wing of a kosher chicken indicating that it was, indeed, kosher -- on a kosher chicken was the ...
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Wait 6 hours after milk?

I once came across someone who was avoiding the meat at a lunchtime simcha. When I asked him why, he said it was because he had eaten "cereal with milk" at breakfast. When I expressed confusion, ...
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Can I use the Flavia coffee machine in my workplace?

There is a coffee machine (also makes tea and hot chocolate) in my workplace that uses individual packets (not pods) for the drinks. I do not know what the mechanism is for turning that into a drink ...
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Are you allowed to take pills with gelatin [duplicate]

According to Halacha, are you allowed to take pills that are covered with gelatin? It's an antibiotic for acne.
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Is human placenta kosher?

There is, apparently, something called placenta encapsulation which means making pills out of a placenta postpartum for the purpose of digesting placenta. People claim that these pills offer unique ...
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If the majority of organic and/or free range eggs contain blood spots, why are they certified kosher? [closed]

Variables that are known of the organic and/or free range: I don't believe the eggs with blood are just protein spots even though brown eggs through observation usually do contain more protein spots ...
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Homebrewer then converts; are there leniencies that allow him to drink the beer he made?

Suppose a gentile is a homebrewer who later converts to Judaism. Fermentation and aging can be long-running processes, so even if he knew to anticipate the problem and ceased homebrewing activities ...
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Does flavored dental floss need a hechsher?

You can find flavored dental floss these days usually in the flavor of mint. Is there anything to worry about or is it no worse than mint mouthwash? If not, doesn't the gemarah in berachot 6th perek ...
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The opinion that microwaves don't need to be kashered

So I remember hearing this opinion that followed like this: "Microwaves do not need to be kashered because the means of cooking in a microwave are different than those spoken about in the Gemara." ...
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What defines a “בהמה” (also “חיה”)?

As discussed in *Dag* (דָג) in kashrus halacha, *Tzomeach* (צוֹמֵחַ) in kashrus halacha, and *Of* (עוֹף) in kashrus halacha, there are different rules used to determine the kashrus status of ...
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*Tzomeach* (צוֹמֵחַ) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as tzomeach, animal, bird, or fish, as each group has its own distinct requirements. E.g., animals need to chew cud ...
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*Of* (עוֹף) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as plant, animal, of, or fish, as each group has its own distinct requirements. E.g., animals need to chew cud and ...
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*Asher Bamayim* (אשר במים) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as plant, animal, bird, or asher bamayim*, as each group has its own distinct requirements. E.g., animals need to chew ...
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Are mouse-deer kosher?

Mouse-deer do chew cud (they has four stomachs), but have not two, but four hoofed toes. Are they kosher?
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Is it acceptable under kashrut to eat tyrannosauridae meat?

Theoretically speaking, if tyrannosaurs were still present these days, or in some way or another brought back, would they be kosher? Let's assume that they are properly slaughtered and prepared.