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

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Place Mats - Why and When?

When are placemats needed when eating, and why are they needed?
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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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Where is the story of the medieval rabbi who ruled a fish was non-kosher because of his dream?

If I recall correctly there's some fish whose kosher status is questionable; a medieval rabbi (Rishon) ruled it was okay, then had a dream that night where all his students were sitting around and ...
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When did kosher bakeries, restaurants, etc. start requiring supervision?

If my neighbor Shmerel keeps kosher and otherwise appears to be observant to the best of my knowledge, then I'd be allowed to eat in his house (assuming I'm invited), eid echad ne'eman b'issurin, his ...
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700 views

Kosher symbols on non-food items

I just bought a box of 100 sandwich bags and on the box there is an (U) symbol. This is neither unique nor uncommon. Why do marks of hechsher appear on non-food products? Is there anyone in the world ...
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258 views

Eating in someone's home who eats in non kosher restraurants

Can one eat at a friend's home who keeps a kosher home but eats at non kosher restraurants?
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127 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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287 views

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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Should one induce vomiting upon realizing s/he just ate non-kosher?

I've heard several stories of people who ate something, realized it was non-kosher, and therefore induced vomiting. Is this halachically required? Recommended? Does it accomplish anything? (If not, ...
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162 views

Chap stick Flavored Kashrut [duplicate]

Possible Duplicate: kashrus of mouthwash, toothpaste, lip balm Whats the Kashruse etatus os the flavored Chapsticks are they allowed or not?
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116 views

Hand Cream Glycerin

Is there a problem according to any opinions of using creams and the like because of their treif animal content in the Glycerin of Sicha Kshtiyah:"annointing is like drinking"?
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Would silverware intended for one-time kosher use (e.g. airlines) need to be immersed in a mikva?

According to the Star-K, First Class and Business Class meals are double wrapped in real chinaware and sealed with kosher certification tape. They are then sent to the airline food service ...
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Can something be kashered by putting it in a cold pot then bringing it to a boil?

Normally the way a spoon would be kashered (in most circumstances) is taking a pot of boiling water, then dropping the spoon in. Instead, could I put a spoon in a pot of cold water, then bring the ...
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Any information about Rabbi Barnett Hasden's “Ner Tamid K” hechsher?

Does anyone here know anything about the reliability of "Rabbi Barnett Hasden of Ner Tamid K in Staten Island, NY"?
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1answer
341 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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367 views

“Hospitality” Cereal Kosher?

It's a generic brand. I don't have access to the box and can't find any way to check…
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513 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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666 views

Is Red Bull™ kosher?

Is the Red Bull™ energy drink kosher?
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826 views

What is the actual temperature of Yad Soledes?

What is the actual temperature of Yad Soledes?
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311 views

Worms (Tolaim) in dried fruit

With Tu B'Shevat in 2 weeks, and the Inyan of eating fruits many people eat dried fruit. What are the concerns regarding worms in specific fruits? How do you check to make sure that there are no ...
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846 views

Is Vegemite kosher?

Is Vegemite kosher? What hechsher?
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Are there any national brands of tuna that are Bishul Yisroel?

Are there any national brands of tuna in the USA that are Bishul Yisroel?
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Hagala for a new pot

I know that there is a halakhic necessity to tovel a new pot. However, has anyone ever heard of the halakhic necessity to do hagala on a new pot? Reason for asking was this.
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What is flavored beer vis-a-vis kashrus?

As referenced in Shalom's answer here, the cRc alcohol list here, and many other places, non-flavored, domestic beer can be assumed legally drinkable according to halacha. What constitutes flavoring ...
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Are there any brands of mustard powder (flour) that are kosher for Passover for Sephardim?

Prepared mustard (containing vinegar and the like) is certainly not kosher for Passover. According to Ashkenazic practice, the mustard plant itself is included in "kitniot" and prohibited on ...
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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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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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490 views

Children's Motrin and Advil

Recently it was publicized that certain lots of Children's Tylenol contain a non-kosher form of glycerin, and therefore should not be used in non-urgent situations. Does anyone have information about ...
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Veal and Kashrus

Is there any kashrus issue with veal? What about with white veal?
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Are sea sponges kosher?

The sea sponge is scientifically classified as an animal, therefore maybe it would be considered unkosher, as seafood. On the other hand, it seems much more similar to a vegetable of some kind, so ...
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610 views

Is there a kashrus issue with paper towels?

Is there any concern about using paper towels with hot food? I know there are some who advise against using the first few and last few sheets during Pesach, due to the presence of starch-based glue ...
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300 views

What was the first product to receive Kosher certification?

What was the first product to receive Kosher certification?
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How can people drink 7-11 Slurpees and soda?

There is no real Hechser on 7-11 Slurpees. How do people drink them? Is going on the Star-K's list okay? What about soda from the machine? I found that 7-11 switches the spouts sometimes. So even if ...
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In what countries is chalav yisrael not required for milk?

The Talmud says milk is not kosher unless a Jew supervises the milking, to be sure it's just kosher-animal milk. Assuming one goes by the ruling of R' Moshe Feinstein and others that "knowing" is ...
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247 views

Is there anywhere in the world I can still get a hot chocolate without a hechsher?

~150 years ago in Eastern Europe, the Kitzur Shulchan Aruch wrote that you could usually go buy a coffee, tea, or hot chocolate without having to worry about its kosher ingredients (or bishul akum). ...
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What is it about pigs that's so despised vs. other non-kosher animals?

We all hear about pigs being so much more reviled than other forms of non-kosher. This is true in general culture; I believe such a minhag was recorded with regards to using soap rendered from ...
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Why aren't any of the main American brands of chewing gum kosher?

These days, you walk into any American supermarket, you can find kosher chocolate bars, kosher jelly beans, kosher all sorts of stuff. I understand why the gummy worms aren't kosher, they contain ...
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220 views

Is watching via webcam valid for cholov yisroel?

Would milk be considered cholov yisroel if someone was watching via webcam?
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If a pig was genetically modified to chew its cud, would it be kosher?

If they were to genetically modify a pig to chew its cud, would it be kosher?
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263 views

How can I avoid Bishul Akum with a rice-cooker?

ASSUMING: I have a rice cooker here that's absolutely, certainly, never used for anything other than plain rice. The rice contains no flavorings, bugs, or anything else non-kosher. Rice is raw ...
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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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Kashrut in the Talmud

I've been speaking with someone about Judaism - what, how, why, etc. We came to the issue of kashrut, and she had a hard time understanding how we got these random laws from the Torah. I explained ...
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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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Is the cat figurine thing a problem at kosher Chinese restaurants?

It seems like all kosher Chinese restaurants have this cat-statue thingy in the front: Is there any Halachic problem with that? I assume not, if they're all kosher-certified; but why not?
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Mehadrin vs. Non Mehadrin

What's the difference between mehadrin and non-mehadrin certifications. (e.g. at http://www.kosherinjerusalem.com/where_to_eat/kosher-hotels)
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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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2k views

Can you drink a beer (such as Miller or Budweiser) at a bar?

Can you buy and drink a beer (such as Miller or Budweiser) at a bar owned by non-Jews?
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Is the lemon slice added to a soda in many bars a problem kosher-wise?

Many bars (and hotel lobbies) will add a lemon wedge to the top of a glass of soda; often it's used to differentiate between Diet Coke (gets the lemon) and regular Coke (no lemon). Does this pose a ...
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817 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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581 views

Eating Giraffe Meat

Why is it common practice not to eat Giraffe Meat?