Kashrut (also kashruth or kashrus, כשרות or כַּשְׁרוּת) is the set of Jewish dietary laws.
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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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Sharpening a knife as Ne'itzah/Kelipah
Can sharpening a knife be done as a form of Ne'itzah for removing a Kelipah for Kashruth concerns?
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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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Status of plastic drip coffee filter cone
What would be the status of the coffee maker cone shown below if it were to be used to make a cup of coffee in a dairy mug? Would it become dairy? Would it remain parve?
Here's how it works. It ...
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Jewish Person Selling Non-Kosher Product
At a local convenience store near my work, they stock all sorts of non-Kosher products. However at the cashier's desk is a guy obviously orthodox Jewish (Curls down from the side, Black Clothing ...
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Eating treif under hashgacha
What happens if someone eats at a restaurant with a kosher certification (hashgacha) but is served, and unknowingly eat non-kosher? What are the spiritual and halachic ramifications to all parties ...
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Is being vegan “kosher”?
Is being a vegan completely following halacha? Even if not eating anything traif (non-kosher), perhaps it's not truly kosher because you are not following the commandments to domesticate animals and ...
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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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Are preservatives called a “davar ha'mamid”
At the end of YD Siman 87 we find the dinim of "mamid". Over there it's speaking about cheese made in the skin of the kevah of a nevilah of treifah. The Rema explains that because it is an issur for ...
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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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Must I check the kashrut certificate every time I visit a bakery or restaurant?
Say I visit a bakery, restaurant, jail, hospital, or nursing home. And say I already know that the food there is kosher. Must I still check the kashrut certificate every time I visit?
(Gershon ...
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Shechting non-Kosher animals
The question was asked: If someone for example is sick and must eat from a non-kosher animal. Must it be shechted (slaughtered) first like a kosher animal? I don't see any reason why it should, since ...
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Is it permitted to lick the adhesive on an envelope?
While most stamps are now self-adhesive, most envelopes still require moistening the adhesive in order to seal it. Is it a kashrus problem to lick the envelope's adhesive?
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Halachic Considerations for Women in the IDF
For a religious girl going into the IDF very soon, there are a few questions that are often asked:
Especially in active units, wearing a skirt while on base can be a problem:
While crawling, ...
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The stolen maple syrup and kashrus
Does anyone know if there is going to be a kashrus problem with maple syrup next year?
A rather large amount of maple syrup was stolen last year. The thieves did not keep it in the original casks, ...
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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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What is “blood that moved from one place to another”?
I'm learning laws of salting in the Shulchan Aruch. One concept I'm battling to understand is "דם שפירש ממקום למקום" - blood that moved from one place to another. Here's a good example of my ...
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What forbids eating in a Jewish-owned restaurant open on shabbat?
Many restaurants in Israel, when asked about their kashrut status, reply that they are open on Shabbat. Thus, no hechsher. This also exists in establishments that would have a relatively easy time ...
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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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Is Pork, Camel, and the like Fleishig?
If one somehow consumed meat of a non-kosher species such as camel or pork (e.g. life-threatening illness, or by accident), does s/he become Fleishig?
Why or why not?
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Kashrus status of turkeys
From what I have heard there were those that did not eat turkey (such as Rabbi Yaakov Kamenetzky Zatzal) due to a question whether we have a Mesorah as to the Kashrus of this bird. I know that many ...
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Why aren't Yemenites an ed echad on locusts?
I've heard that the reason we (most of us) don't eat the locusts enumerated as kosher in the Torah is that we cannot identify them. That is, we don't know what type of locust is referred to by the ...
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A restroom in a formerly-kosher eatery vs. one in a never-kosher eatery: which is preferable?
Say I'm on the road traveling, and I need to use a restroom. Which of the following two restrooms is preferable?
One in a restaurant that used to be kosher, but is now non-kosher.
One in a ...
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At a non-kosher restaurant, is sliced raw fish kosher?
At a non-kosher restaurant, is thinly-sliced raw fish kosher?
Let's assume one sees the preparer clean the knife and cut from the whole fish.
Also, let's assume this raw fish is sashimi — ...
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How does one keep a kosher sink?
How does one keep a sink kosher when using two separate sets of plates and dishes?
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Trustworthiness of “new” dishes
When one buys new dishes from a store (e.g. cutlery, plates, bowls), is there any concern that they are not as "new" as they are claimed to be?
For example, someone buys some cutlery and plates, ...
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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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Dried insects - permissible?
I just read the website of a Kashrut inspection agency with which I'm familiar, but only insofar as I have seen it many times and tried, but failed, to find any information about the agency's ...
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Kashrut: Meat and dairy
My family owns a farm that produces fresh food, including dairy and meat. Would the prohibition to eat milk and meat together still apply since I have ascertained that the cow from which milk was ...
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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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Can Jews eat non-Kosher meat?
Is it permissible for a Jew to eat meat that isn't treif or forbidden flesh if it was not purchased from a kosher butchery? I was told by a Muslim friend of mine that non-halaal meat (except pork) ...
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Does a Chalav Yisroel milk bottle help?
There are many stores out there (e.g. Coffee shops) that have a hechsher, but are Chalav Stam. To get around this issue, some of these stores offer the option to request Chalav Yisroel milk for those ...
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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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Why assume coffee is kosher
Why can it be assumed that coffee from coffee shops is kosher? Why couldn't the equipment become unkosher through exposure to non kosher ingredients or when being cleaned?
For example the Canadian ...
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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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Invitation to nonkosher restaurant
The question "Keeping Kosher at a secular company" asks about food issues on the job in general. This question is focused more narrowly on "unbalanced" situations: situations where there's an ...
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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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Keeping Kosher at a secular company
How you do deal with keeping Kosher while working at a secular company? Its easy enough to bring my own lunch everyday, what I'm not sure how to handle are events like company lunches and other social ...
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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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A site to search Kosher Symbols by characteristics?
Several years ago, I found a website that let me search and sort Kosher symbols by look and other characteristics. It seemed like each symbol was tagged with its distinctive features. This was very ...
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Synthetic unkosher meat?
Suppose tissue identical to that of a pig could be created synthetically (with kosher ingredients) in a science lab. The meat would be completely indistinguishable from pig meat, but it would never ...
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Is Ever Min HaHai a Nevelah?
Does Ever Min HaHai have a Din of Nevelah? Does it render food cooked with it Nevelah? If it's meat from a Behemah Tehorah would it be Asur to cook with milk?
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Does an ivory spoon make hot tea non-kosher?
Both the handles of cutlery and spoons entire have been made of elephant ivory, which is from a tusk (a tooth) of an elephant. Elephant is of course not a kosher animal. Presumably, then, these spoons ...
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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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How was kashrut affected by Science?
I have been reading a lot of questions concerning kosher foods, to get a better understanding of what it means for something to be kosher. To an atheist, this site is very helpful.
But as a chemistry ...
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Non-kosher, non-Jewish-run, Sushi Restaurants
Is the food served at a non-kosher, non-Jewish run sushi restaurant considered non-kosher because of the non-kosher-ness of the knives, the bishul akum of the rice, or both?
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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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Does it make logical sense to “not hold by OU kashrus”?
Apparently there are some people who do not rely on the OU for kashrus. I have seen a few online references (i.e. this Matzav post) that claim this makes no logical sense, since virtually every other ...
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What food product was the Birkei Yosef discussing when he said Bishul Akum didn't apply?
If my non-Jewish neighbor cooks some rice and brings it to my house, I'm not allowed to eat it because of Bishul Akum (even if I know his ingredients and equipment are 100% vegan and grape-free). Too ...
