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

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Rav Moshe milk and tuna

Rav Moshe holds that tuna needs a masgiach timidi for it to be consumed,every fish needs to be checked for the simanim.However, by milk he brings a savarah that the government is sufficient and a ...
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Allowed to help prepare / serve “milk and meat” meal in homeless shelter?

Imagine a case in which one is invited to volunteer with a group that is preparing and serving a meal at a homeless shelter. The group has decided on a menu that includes milk and meat together in ...
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Halachich law about inviting a Jew for dinner by a Gentile

" I know that Observant Jews are commanded by law to eat Kashrut or kosher, so I as a Gentile can invite my Jewish friend for having dinner in one of marriage or engagement function ? what food items ...
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Is Extra virgin olive oil kosher by default?

I was given extra virgin olive oil as a gift from Italy (picture below), and I wanted to see if that type of olive oil is treated like fruits and vegetables, or does it needs to have certification on ...
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In light of modern science, why is bee honey still kosher?

My understanding of why bee honey is kosher is because the talmud says that the honey is not a by-product of the bees. They simply store the nectar in their body to transfer it and then expel it, ...
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Is human blood treif?

OK, I know it isn't kosher, but what is the shiur? And do we hold "chetzi shiur assur min haTorah"? For an application, what if you get a cut while hiking in the woods; is it assur to clean the wound ...
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How come delicatessen offer meat sandwiches AND cheesecakes as deserts?

How come delicatessen offer meat sandwiches AND cheesecakes as deserts? Were people mixing meat & dairy in eastern european communities ? Or were they not really part of traditional ashkenazi food ...
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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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Is a chicken egg considered “Aver min Hachai”?

The question of Chicken eggs and why they are Pareve and not Meat has already been addressed. My question is why are they not considered "part of a live animal" and therefore prohibited to eat to Jews ...
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Must a non-Jew who eats trief or a nevaila immerse himself?

Vayikra 17:15: And any person, whether a native or a stranger (gair), who eats carrion (nevaila) or what was torn (trief), shall immerse his garments and immerse himself in the waters, and shall ...
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Would synthesized meat be Kosher?

Scientists are preparing synthesized meat for human consumption. See here for a excerpt, and two articles here and here. My question is: Would this meat be considered Kosher? Might it depend on the ...
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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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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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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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365 views

Does every thing need a hechsher?

Do objects used in food preparation and foods that have no or little chance of being not kosher really need a hechsher? Please cite sources, if you can.
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Refrigerators and shabbat

I have a friend that became Habad a while ago, and lives with her non-orthodox parents. She leaves the house for shabbat, but insists that her parents turn the lights off in the fridge, because if ...
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Does Neveilah/Tereifah make you Fleishig?

Another question asks whether meat of a non-kosher species (Behemah Temeiah or Hayah Temeiah) makes one Fleishig (considered to have eaten meat, so cannot eat milk). My question then is about kosher ...
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Am I still Fleishig? When did we eat?

I'm sure this happens many times in a Jewish home on Shabbos: It's Shalosh Seudos time and there's dairy to eat, except no one remembers exactly what time the Shabbos meal took place. So, my question ...
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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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can frozen yogurt be OK without storefront certification?

It's increasingly common for frozen yogurt chains to have their central production plants be certified kosher. Examples include Pinkberry, Red Mango, and Yogurtland. When this is the case, are there ...
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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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How big, and what exactly, is “Kedei Kelipah”?

{Kedei Kelipah is a term used in Kashruth for the amount of something that needs to be removed in order to allow one to treat the remnant as Kosher. (This only applies under certain conditions, which ...
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Cultured Beef and the 7 Laws of Noah

I know there have been questions on whether lab meat would be Kosher or not, halavi or besari... I see another potential debate. According to http://culturedbeef.net/what-is-it/, "Cultured Beef is ...
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Hechsher on Trans Fat

The National Academy of Sciences (...) has concluded there is no safe level of trans fat consumption. There is no adequate level, recommended daily amount or tolerable upper limit for trans fats. ...
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Do Hashgachos endorse non-proximate halachic claims on label? [duplicate]

Sometimes I find products (under Hashgacha) with halachic information written on the wrapper (away from the hechsher). For example: Some products claim "Pas Yisrael", "Chalav Yisrael" or "Yashan". ...
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kosher food ideas without refrigeration

What kosher food should I pack for a one-week trip? I won't have access to a fridge; and no kosher food will be available at my destination. The only food idea I can think of is tuna. That would ...
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What is the kashrut status of synthetic/in vitro meat? [duplicate]

It was reported in the news today (at least in the UK) that another step forward has been made towards the creation of "synthetic meat". From BBC News: The world's first lab-grown burger was ...
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Would coffee in beer be kosher?

It is common practice to allow drinking coffee pretty much anywhere. It is also widely accepted to drink unflavored beers. Would that logic allow one to drink beer that is commercially brewed and/or ...
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Does extra virgin organic coconut oil have to have a hechsher?

I am specifically referring to Coconut Oil. I know that my question is similar to this one: Is Extra virgin olive oil kosher by default? but My question is also about non-olive oils. Due to the huge ...
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Is there a higher standard of kashrut for chicken analogous to “chalak beit yosef” for beef?

If I understand correctly, if someone wants to keep an extra-super-high standard of kashrut for themselves, s/he can look for "chalak beit yosef" beef, which means ("super-glatt") the lungs had ...
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Are plants that exhibit rapid plant movement considered non-Kosher animals?

There is a question here asking if sea sponges are Kosher. The answers seem to center around the idea that regardless of if they have animal cells, a halachic classification might depend on how it ...
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Equipment used for cooking by a non-Jew

I've heard that even if kosher ingredients and equipment are used, the food cooked (i.e. using heat) by a Gentile isn't kosher in most circumstances. I am wondering what the opinions are regarding ...
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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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Milk and Meat of Non-Kosher Animal Species

Is cooking milk with the meat of non-kosher animal species the same problem as cooking milk with the meat of kosher animal species? In other words: can a Jew cook milk with a non-kosher animal ...
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Are Dunkin' Donuts kosher without hechsher?

Can one (who is not strict about cholov Israel) eat Dunkin' Donuts without a kosher certificate?
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Are there any hechshers that certify food as kosher for B'nei Noach?

Are there any hechshers that certify food as kosher for B'nei Noach? Or any restaurants that offer such food? If not, how do observant B'nei Noach ensure that the meat that they eat was definitely not ...
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Rambam held of Timtum halev?

There is a famous story of the Rambam in the name of R' Chaim Brisker: "When the Rambam visited Yemen, he met a certain gaon of the geonim of the time. And after the Rambam returned home, this ...
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Premixed Gatorade and Powerade aren't cheap. I'd rather buy something powdered or concentrated. What's kosher?

I'm sick today; I think it might be (mild) gastroenteritis. DuPont et al. write that "the most important form of therapy consists of fluid combined with electrolytes", citing the CDC. I'd rather use ...
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Fruits and Vegetables Prepared With Treif Utensils

Can I eat e.g. a watermelon cut with a treif (non-kosher) knife on a treif cutting board and stored in a treif container?
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Kashrut of rennet for cheese & Difference between rennet and gelatin

I actually have 2 questions which are related. Traditionally, making cheese involves using rennet, a substance derived from animal stomach. If the rennet is derived from a non-Kosher animal, it is ...
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Is Coca Cola (and other beverages) kosher everywhere in the world?

I'm currently sitting in an airport transit lounge in Istanbul, and thinking I wouldn't half mind a drink. Available to me are the usual range: Coke, Fanta, Sprite, filter coffee... Are these ...
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Artificial non Kosher food

According to Vayikra we have: ז וְאֶת-הַחֲזִיר כִּי-מַפְרִיס פַּרְסָה הוּא, וְשֹׁסַע שֶׁסַע פַּרְסָה, וְהוּא, גֵּרָה לֹא-יִגָּר; טָמֵא הוּא, לָכֶם.‏ 7 And the swine, because he parteth ...
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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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food containers - why is hechser needed? [duplicate]

I want to buy a vacuum sealer for food. The vacuum bags do not have a hechsher. Normally, I buy ziplock bags that are OU. To keep this general, I am hoping someone can elaborate on the reason and ...
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Why is chicken “meat” (with regards to basar bechalav) and an egg not?

Why is chicken considered meat but fish is not? Also, why is an egg considered pareve? And if we can eat chicken eggs, why can't we eat caviar (fish eggs)?
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Finding Kosher Fruit Flavored Snacks

Anyone know of a kosher fruit flavored snack, similar to these? According to oukosher.org there exists a "Scooby-Doo! Fruit Flavored Snacks 10 Count Carton" that is OU Parve, but I cannot find it ...
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I am or was a religious jew and purposely ate non kosher

I'm a religious Jew. I kind of lost faith and ate non-kosher purposely, and now I feel so bad with myself that I want to die. What should I do? Is there any type of repentance I should take upon ...
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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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Kosher accommodations in out-of-the-way US places

Are there any non-urban vacation areas in the United States with full-service kosher food available? I realize that the following are not hard to find: Kosher restaurants in some urban centers. A ...