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

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Powdered Milk - Chalav Yisroel

I have a child with a milk allergy. He will be undergoing a "baked milk" food challenge shortly. For this I need to bake him muffins with powdered milk. I have found several brands of kosher powdered ...
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124 views

Timing of the Commandment of Gid Hanashe

The Torah mentions, after the story of Yaakov getting injured in Parshas Vayishlach, that we do not eat the Gid Hanashe for this reason. The Meforshim seem to concur that this mitzvah was included in ...
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How does shechita (kosher slaughter) actually work?

If I understand correctly, the classical Halachic requirements on kosher slaughter only discuss cutting the trachea and esophagus. Is that enough to kill the animal quickly (and painlessly?) What ...
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339 views

Can you kasher earthenware or porcelain utensils?

I read in the Kitzur Shulchan Aruch of the Yalkut Yosef that if one cooked dairy in a earthenware meat vessel, and if the vessel is valuable, then one can perform hagalah on the vessel three times ...
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tuna wrap in non-kosher restaurant

Is there any way to eat a tuna wrap from a non-kosher restaurant, if I have full access to see their ingredients and packaging?
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181 views

Confectioners glaze - non alcoholic

Recently I read an article by Rabbi Yirmiyohu Kaganoff regarding confectioners glaze. Confectioners glaze is manufactured from shellac, "a glandular secretion of the lac insect, Kerria lacca, a ...
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203 views

Unsupervised meat and closed restaurants/butchers

How does Basar SheNith'alem Min Ha'Ayin (meat that has disappeared from view) apply vis a vis restaurants/delis/supermarkets/butchers that have closed for the night/weekend/holiday? I was just ...
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179 views

How to identify Yashan

I would like to serve food to a friend who observes the restrictions against eating Chadash grain products, but I don't have access to a guide on identifying Yashan. However I have heard, for ...
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Do hechshered leafy vegetables mean that they have no bugs?

If I buy (for example) frozen broccoli in the store with a hechsher, is it required to check for bugs? Does the hechsher signify that the vegetables have already been checked for bugs and are free of ...
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Is aged beef salted and soaked before or after the aging process?

Some kosher butchers are now offering aged beef. Is this meat salted and soaked before or after the aging process?
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264 views

fruit-flavored tobacco Kashrut

Do the fruit-flavored tobaccos that are widely used in hookahs require a Kashrut certification similar to foodstuffs? If yes, why; if not, why not?
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What are the kashrut standards of the various nationwide (and regional) kashrut agencies?

I'd like to see a resource developed which transparently compares the standards of the various kashrut agencies. Just like I can retrieve an incredibly in-depth comparison chart from Wikipedia ...
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93 views

Permissibility of making Matzah by frying

Does anyone know of an opinion permitting Matzah to be cooked in a skillet(instead of being baked in an oven), and if so under what circumstances?
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Reliance on non-Jews for removing bugs

In discussing washing salted meat according to Halachah, there is a lengthy discussion about whether and when we can rely on a non-Jew who claims to have done it. The Tur (Y"D 69:10) says that there ...
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81 views

Kashrus Book in Hebrew like Shemiras Shabbos k'Hilchasa

Does anyone know of a good book on kashrus (in Hebrew) that accomplishes for kashrus something similar to what Shemiras Shabbos k'hilchasa does for Shabbos?
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At what point was it recommended to have a separate kosher certifier (mashgiach) for local Jewish businesses?

If I understand correctly, you can generally walk into an observant Jew's house (upon invitation) and if he says the food is kosher, you assume the food is kosher. Now if the same fellow has a kosher ...
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317 views

Fresh fish need hechsher

Does fresh fish from a supermarket or fish market require a hechsher? I would be tempted to believe that a fish known to be of a kosher variety would not need certification since there is no shechita ...
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Is Rum Kosher for Passover?

Specifically, is Bacardi Superior Original Premium Rum kosher for Passover? The label doesn't say so, nor does it say that it's kosher in general for that matter, but since it has a sugar base, ...
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Comprehensive list of Kosher Products

Is there a comprehensive list on the web of all kosher products?
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What other work can a mashgiach do in a kosher restaurant today?

In a kosher restaurant today, must the mashgiach (kosher inspector) spend 100% of his time watching everything, or can he do some other work in the restaurant? How much work? I know this may vary ...
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Does soda need a hechsher?

I have noticed that many cans of pepsi don't have a hechsher (kosher symbol) on them. Do they need one?
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Is the Halachic concept of taste transfer accepted by scientists and chefs?

Halacha (Jewish Law) tells us that when food is cooked in a pot, that pot absorbs the taste of that food (to what degree is impossible to know). When that pot is then used to cook something else, the ...
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What are all the different koshers for/about?

I found out recently that what I had been thinking of as a "food copyright symbol", (U), is actually a statement of kosherness. Now that I know what this is, I'm starting to see different symbols like ...
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what is kosher meat?

I have heard different theories about Kosher foods, such as They sacrifice animal in a proper way They recite God's name when sacrificing the animal They only eat front limbs of animals. The rear ...
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Is human flesh a kosher food?

Is human flesh a kosher food? Please provide both modern and classical sources.
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Does consuming raw meat make one Fleishigs?

If one is making meat, and while the meat is still raw licks his/her fingers, does s/he become Fleishigs (to wait the appropriate amount of time before eating dairy)? Essentially if we boil (excuse ...
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Does cooking kitniyot in a pot render it non-kosher-for-Passover for Ashkenazic Jews? If so, why?

I've heard of cases where a Sephardic family, for whom rice is totally kosher for Passover (assuming it's checked and contains no additives etc.), cooked rice in a pot. The next day, they invite their ...
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kashrus of mouthwash, toothpaste, lip balm

What are the halachic and factual issues involved in, and various rabbis' holdings on, whether flavored mouthwash, flavored toothpaste, and flavored lip balm need to be kosher, or need a hechsher ...
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470 views

Is there anywhere that you can buy Kosher non Glatt meat?

When you go shopping, it seems that they only offer Glatt Kosher. I would imagine non Glatt would be cheaper. Is there anywhere that someone who is not Makpid (It is an American post world war ...
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What is the actual temperature of Yad Soledes?

What is the actual temperature of Yad Soledes?
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What Kashrut Agency Uses this Symbol?

I found this symbol on a box of chocolates today: It was on a box of chocolates from this company - http://www.hauserchocolates.com. Anybody recognize the agency?
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618 views

Is it permissible to use a Hotel's Drinking Glasses?

Is one allowed to use the glass cups provided by a hotel (usually in the bathroom) for drinking? Or is there a Kashrus problem?
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447 views

What are the reasons that chewing cud is a kosher sign?

In parashat Shemini (Lev. 11:3), we learn that one of the signs for distinguishing kosher mammals is that a species must chew its own cud. Are there any taamim (explanations) that elucidate the ...
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101 views

Why is Kosher important?

Why is Kosher important to Jewish people? It is not necessarily healthy food from what I can see.
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221 views

Can you eat beeswax?

To my knowledge there is a lengthy discussion as to why bee honey is kosher to eat. I am unaware of any discussion of bee wax. I am told by my local grocer that many large distributors of produce coat ...
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Kosher status of medicine that comes in a gel capsule

What are the kashruth issues involved in the taking of non-prescription gel-capsule medicine which does not have kosher certification?
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267 views

Gigantic Tiger Fish - Is it Kosher?

Is this fish Kosher? It apparently has both fins and scales. Is there any problem with its having teeth, or its not having been discovered until now (and therefore being outside of our Mesorah)?
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Contradictory Hechsherim

I've noticed for some time that, especially on imported foods, there are often multiple Hechsherim, and that they sometimes contradict one another. It might not surprise me if a foreign product were ...
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181 views

is it considered watching

Would milk be considered cholov yisroel if someone was watching via webcam
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Buddha at Indian Restaurants

Is the Buddha statue (or Hindu statues) a problem at Kosher Indian restaurants? (This is different than the cat question since the cat is only a good-luck superstition and these are actual idols)
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How does one do Hagalah above 12,000 feet?

How does one do Hagalah above 12,000 feet, where water's boiling point falls below 190°F? Under normal circumstances, the water will not be Rochsim, and therefore unsuitable for Hagalah. Using a ...
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65 views

The Sciatic Nerve and Fat of Kosher Fowl

I have learned that the sciatic nerve must be removed from land animals to render the meat kosher. But what about fowl? Does the sciatic nerve need to be removed from chicken or turkey? Why or why ...
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190 views

Can my non-Jewish co-worker bring me coffee from the corner cafe?

Assuming coffee is Kosher, would it be alright if my non-Jewish co-worker brings me coffee on a trip to the corner cafe? May I assume that the co-worker indeed purchased a Kosher item and has not ...
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270 views

Food cooked by a non-Jew not kosher?

Why is it that food cooked totally by a non-Jew - without the participation of a Jew - is not kosher?
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304 views

Can meat ever be both “treifa” AND “neveila”?

I'd always assumed that if a cow died of any cause other than proper shechita (kosher slaughter), the meat is neveila. If it died by kosher slaughter but had already been seriously injured or ...
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562 views

Eating your own (kosher) food in a non-kosher restaurant?

This was brought to mind by this question: What are the rules about joining your co-workers (or the like) for a meal in a non-kosher restaurant, but bringing your own food? Is it prohibited as mar'is ...
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32 views

Kashering a Hard to Clean Pot

Is it possible to kasher a pot that has areas that are hard to clean, for example the rim? Is there anything one can do to these areas if they can't be completely cleaned out that will allow the pot ...
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Noachide Dietary Restrictions

Noachides are not commanded to keep Kosher but we do know the sixth commandment given us is "The prohibition of eating flesh taken from an animal while it is still alive" can someone clarify (Not give ...
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66 views

Is kosher food cooked by an irreligious Jew Bishul Akum?

Assuming that one can ascertain that food cooked by an irreligious Jew is kosher, is the food still prohibited due to Bishul Akum? Does this also apply in a case of need, such as one visiting an ...
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What to do when finding blood in eggs

When cooking something with eggs, I always check the eggs for bloodspots. But I wonder, if I find a blood spot, do I need to throw the whole egg away or can I take the blood out with a spoon and use ...