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

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Should a Va'ad revoke kosher certification of caterers that allow catering a gay marraige affair?

Related and a follow up to this M.Y. question: The U.S. Supreme Court has legalized gay marriages in al states. There have been several publicized law suits in a few states where a gay couple sued a ...
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Batel b'shisim on a large scale

Suppose someone is making a huge 50-gallon vat of cholent. Accidentally, an entire bag of milk breaks and spills into the cholent. There is more than 60x as much meat cholent as there is milk, so the ...
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Can small enough amounts of animal rennet pass kosher standards? [closed]

I've always been an advent of a more modern view of kosher law and living in America I try to only eat Kosher. I have somewhat slightly reformed views as I used to work in a meat factory that ...
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How much aged cheese is needed in a cheese mix to require waiting 6 hours?

According to Remo in Shulchan Aruch Yorah De'ah a9:2 as referred in this OU article, people should wait 6 hours after eating hard cheese. Let's say someone eats a type of cheese that is partially ...
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Are these cookies kosher?

These cookies have no certification on the box itself, it is made in a spanish speaking country. yet they have a sticker with a kosher certification put on them. is this reliable? This is not a ...
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Waiting to reveal Kosher issue in order to get to the root of the problem

Suppose a Mashgiach realizes that a store is selling Treif meat, however is unsure as to the source of the problem. If he announces immediately that this store is selling something not Kosher he may ...
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Can non-biological matter cause your sink, dishes, or food to become non-kosher?

For instance, if something non-edible such as a chemical or eraser shavings are drained down the sink, would that cause any kashrut problems?
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Is it permitted to eat boogers?

I apologize for the question. but is it permitted to eat ones boogers? possibility of blood? is it Baal Teshakzu? totally permitted similar to nail biting? and would it be forbidden on shabbos?
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Kosher Cheese without a posted hechsher

I live in a remote area of Canada and don't have access to a kosher market to buy cheese. There are many European imports in the local super, and I was wondering if there is a list of cheeses which ...
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Kashrut of Bread [duplicate]

Assuming bread was prepared and baked by a Gentile using only kosher ingredients (e.g. kosher flour, water and kosher yeast) and only kosher equipment, what conditions would render such bread fit for ...
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ka-kosher legit?

I want to know if anyone knows or anyone can help me determine if: ka-kosher as presented at ka-kosher.com is a legit (orthodox) kosher certification. I noticed the symbol on a bag of frozen organic ...
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does a water bottle become fleishig from a meal?

If I drank from a water bottle during a meat meal, does it become meat? Basically, if I drink from the same water bottle a few hours later, do I need to wait six hours again?
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When do dietary supplements need a hechsher?

I am looking to purchase a probiotic supplement (http://www.amazon.com/gp/aw/d/B003THZ06A?vs=1, ingredients: ...
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Does jam have the halacha of duchka d'sakina?

The Chochmas Adom in 49:9 holds that all fruit have the halacha of duchka d'sakina, and that if you cut a fruit with a meat knife which was not definitively clean, you need to scrape off the outer ...
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A kohen who marries Gerusha as Mashgiach

Is a Kohen who marries a Gerusha(divorcee) but is observant in Shabbos and Kashrus allowed to be a Mashgiach?
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Does eating a parev item cooked in an oven with meat make you meaty?

If I cook (e.g.) roasted vegetables in an oven whilst at the same time cooking a chicken in a different shelf, would eating the roasted vegetables render me meaty? There are several factors that need ...
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Do drugs need to be kosher? [duplicate]

Specifically, does it matter if medication comes in gelatin capsules? Is there a difference what the medication is?
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Swallowing fingernails

Although it is permitted to bite ones nails, and is not considered uncouth as is stated in Moed Koton (18a): אמר רב שמן בר אבא הוה קאימנא קמיה דר' יוחנן בי מדרשא בחולו של מועד ושקלינהו לטופריה ...
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Earliest sources for the hot-rock method of 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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Length of time for waiting for hard cheese proportionate to the length of time it was aged

In a Halachic pamphlet I saw before Shavuos this year, it mentioned an opinion that one must wait after eating hard cheese one hour for every month it is aged (so if it was aged three months, three ...
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Sources about the Kosher status of Royal Jelly

Royal Jelly ("a glandular secretion and its color is a whitish yellow. Its consistency is creamier and less viscous than honey. Its taste is bitter, although not offensively so.") according to this OU ...
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Does Vegan Certification Have Any Halachic Weight?

There are a number of organizations that offer Vegan Certification for food products; the concept is the same as kosher certification, (though that is the only similarity). Examples would be Vegan.org ...
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Source for hechsherim [duplicate]

Who was the first rabbi or beis din to establish a kashrus organization? I know according to the gemorah, chazaka is enough if the owner is yiras shamayim. Was there ever a takonah established ...
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Cholov Yisroel “Kashered”

So I was eating one of my favorite meals -- a bunch of peanut butter and cheese sandwiches, and to pass the time, I looked at the package of cheese. It is "Natural and Kosher" by Anderson ...
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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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Using Dishwashers for both Meat and Milk

Can one use a dishwasher to wash both meat and dairy dishes, either simultaneously or consecutively? What about pareve dishes?
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Eating bread/pastries from a non-Jewish baker

There are various commentaries that allow eating pat paltar, see here and here for a more extensive discussion. Going with the opinion that pat paltar is allowed what questions would one have to ask ...
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Is it halachically permissible for a Jew to own a casino?

For the purpose of my question, assume that the modern casinos have games which, on average, favor the house. They don't win every spin of the roulette wheel, nor every throw of the dice, but the ...
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Issur Sefichin on Otzar Beis Din produce

The Sages were concerned that individuals would plant vegetables in the seventh year and claim that these had grown by themselves. They therefore forbade consumption of Shemitta vegetables where the ...
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Fins and Scales

I once heard that if a fish has fins it's enough - and you don't need to find out if it had scales. Is this true? What is the source? Why did the Torah write fins and scales, if fins is enough of an ...
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What are the issues with a woman mashgiach?

I hear that many people won't allow a woman to be a mashgiach. Why is this?
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What's the way to check a mushroom for worms

Is there a way, and if so, what's the best practice for checking a mushroom to verify it is clear of worms?
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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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Dyo lesafrut - mutar beficha or not

I came across a thread today on the International Sta"m Forum. In the comments, some of the sofrim who frequent the site were debating whether sofer's ink, or dyo, need be mutar beficha (permitted to ...
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Do Strawberries acquired from a supermarket require washing to be kosher?

This question comes from someone who's interested in preparing and selling food items with strawberries as a main ingredient. In a scenario where many strawberries are being used at once, would each ...
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Is whisky matured in a sherry cask Kosher?

Is whisky matured in a sherry cask Kosher? I know there is a Machlokes about this. Who holds what?
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Roasting unsalted meat

What are the customs in the process of making meat edible by removing the blood through roasting? Specifically after the roasting do I need to wash the meat to eat it (not to cook it afterwards)? ...
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When koshering meat by roasting can I put pepper

What are the Ashkenazi and sifardi customs when kashering meat by roasting if it is permitted to use salt and/or other spices?
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Can one buy lettuce and cabbages, etc. from a non-Jewish produce store?

I have noticed that some non-Jewish owned produce stores in U.S. have someone trimming the rotten or ugly leaves off the edge of lettuce, cabbage and other similar leafy vegetables. The knife used is ...
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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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Where in the Torah does it says we cannot eat live anmals? [closed]

I remember something along not eating meat with blood still in it. Does it really mean that we cannot eat an animal when it's still alive or that blood is literally not okay? Some too related follow ...
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Is a Jewish farmer allowed to raise animals for non-kosher slaughter?

Is a Jewish farmer allowed to raise animals for non-kosher slaughter? Does it make a difference whether it is a non-kosher animal (e.g. pig), vs. a kosher animal? Does it make a difference whether the ...
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Kashrus in Israel [duplicate]

Possible Duplicate: Which hechsheirim are reliable? How can one tell which Kashrus organizations are reliable in Israel?
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Why separate verses for the camel, hare, and hyrax?

In vayikra 11, we're given an overview of the kosher and non kosher animals. Among mammals, it singles out four as explicitly non kosher: the pig for only having split hooves, and the camel, hare, and ...
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Restaurants with hechsher for locusts

Are there any restaurants in Israel (or other) that have a hechsher endorsing the preparation and eating of locusts in their restaurants?
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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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Starburst Fruit Chews kosher?

Are Starburst Fruit Chews kosher? This website below clearly has an OU on the right side. However, Gelatin appears on the ingredient list, and the oukosher.org website doesn't have any reference to ...
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Does baby toothpaste need a hashgacha?

According to Rav Yisrael Belsky (and based on the reasoning of Rav Yaakov Kaminetsky) toothpaste which contains non-kosher ingredients (such as animal-derived glycerin) is only kosher when the ...
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Automated Cooking Machine Programmed

I realize in most situations to have a factory line be "cooked by a Jew" an observant Jew would have to turn the oven on, stove on, or something along those lines. This morning I saw this article ...