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

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Can a non-Kashrus observant Jew cook for a Kashrus-observant Jew?

Can a Jew who understands the laws of Kashrut but is not personally observant cook for a Kosher-observant Jew? For example, can a Jewish but non-observant parent cook for his Orthodox child? Presume ...
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Is lotus root davar charif?

Lotus root is a common ingredient in Asian cooking, and it has a distinctive shape. Is lotus root a davar charif for kashrut purposes?
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Contemporary approaches to kashrut of dates

What are contemporary approaches regarding dealing with bug infestation of dates? Do Kashrut agencies (e.g. the Orthodox Union) regularly inspect crops to determine infestation levels? And if so, what ...
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Lucky Buddha Beer

does anyone know if the beer lucky buddha beer is kosher? it is a beer made in china? does anyone know if it has been certified kosher by any establishment? Please let me know
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Which rabbis permit food being kosher just based on the ingredients?

Kosherstarbucks.com give options of what to order based on different halakhic standards. They include the "No Utensils List" (CRC-recommended), the Regular list, and the Kosher by Ingredients list ...
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Do kashrut agencies inspect pickling spices for insects before adding them to brined meat?

I noticed that pickled meats such as corned beef, pastrami and tongue are covered with seeds twigs and leaves. (Most of it seems to be allspice.) Considering that kashrut agencies have been so ...
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Would humans with kosher-signs be kosher?

If I genetically engineer a human to have split feet and to have a second stomach so they can chew their cud, can I eat them?
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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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Is it possible that Judaism would one day allow eating pork?

As far as I understand, pork was originally banned from consumption since it was hard to maintain a clean enviroment for pigs in a desert climate (as summarized in the Wikipedia). Since nowadays ...
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Would a space fish be kosher?

In the episode "TKO" of the science-fiction show Babylon 5, Lt. Commander Susan Ivanova, a Jew, has dinner with her rabbi and they have a discussion about the food that they are eating. Rabbi ...
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Is the leviathan kosher?

The leviathan seems to be a unique sea creature, which I've always pictured as some sort of sea serpent. This is consistent with Yeshayahu 27:1's description of it as a snake (nachash). An answer to ...
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How do we know that commercial fruit is not orlah/neta revai?

According to Judith R. Baskin (Cambridge Dictionary of Judaism and Jewish Culture, 2011, pp. 134-135), "The biblical law of "uncircumcised" fruit (orlah) prohibits consuming fruit picked from a tree ...
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Is triangle k a reliable hechsher? [duplicate]

I heard that they're upping up their level of kashrut recently. I also heard that there are many different types of triangle k signs.
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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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Can a Jewish, non-observant parent cook for his Orthodox child? [duplicate]

Can a Jew who understands the laws of Kashrut but is not personally observant cook for a Kosher-observant Jew? For example, can a Jewish but non-observant parent cook for his Orthodox child?
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How does a condiment become Fleishig?

Ive seen people label their ketchup or mustard or other condiments in their home as either meaty or milky or parve. How does a condiment's kosher status get changed?
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Non-Jews and kosher wine

As a non-Jew, undergoing the conversion process, I am very careful regarding the Torah, rabbinic, and cultural laws. However, some times it seems to me that some laws are not compatible for converts. ...
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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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How do you look into a Pesach program?

I often hear that Passover programs are fraught with potential issues, primarily in the area of kashrus, but also with the reliability of the Rabbanim there and other issues. How can one go about ...
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Frozen raspberries without supervision

My wife was told by a friend that a certain legitimate kashrus organization says that frozen raspberries do not require supervision, and upon calling the organization, she was told that the process ...
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Possibility of buying treyf meat in a kosher store

Since meat may be sold to a consumer before kashering and traiboring, it is possible that parts of meat obtained from a kosher store may not be kosher.* Ordinarily, one could guess whether the meat ...
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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 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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Who or what is OV? (kosher symbol)

In the store earlier, I saw a kosher symbol I had never seen before, and was wondering if anyone here knows what organization it represents. Here is the symbol:
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Can a Jew buy non-kosher food for a gentile?

If a Jew is entertaining non-Jews in a business setting is he allowed to buy them non-kosher food in a non-kosher restaurant?
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Veal and Kashrus

Is there any kashrus issue with veal? What about with white veal?
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What's the halachic advantage of double (or triple) wrapping food?

I've heard of both double and triple wrapping when it comes to shielding a food item in an oven with regards to Kashrus. What exactly does double or triple wrapping accomplish that one wrapping ...
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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, that ...
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Gentile owned and operated Kosher establishment

Are there any restrictions or limitations for a gentile owning and operating a kosher establishment? Are there any limitations or restrictions for Jews patronizing such an establishment?
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Is a rare steak kosher?

If you have a steak medium to rare, such that it's still pink in the middle, is it kosher? At what point is meat cooked enough?
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Are separate glasses required for milk and meat?

It seems to me that there are some interesting things which are done in virtually every kosher Jewish home that may have no basis in halachah. I think that having separate glasses for meat and dairy ...
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Would a mermaid be kosher?

Tonight at religious school we were discussing Kosher laws and how to build/keep a kosher kitchen. While we were discussing different meats, one of the jokers in school asked if you could eat a ...
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*Asher Bamayim* (אשר במים) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as plant, animal, bird, or asher bamayim*, as each group has its own distinct requirements. E.g., animals need to chew ...
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Does halakhah forbid Jews from eating pets that die naturally?

Suppose you keep a goldfish in your house. One day, it dies. Assuming that it has died a natural death (that is, you didn't intentionally kill it), is it kosher to eat this goldfish?
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Using a non-kosher rotating pizza oven

A countertop rotating pizza oven has a turntable on which pizza is placed. It has two heating elements: one heats from below the turntable, like a hot plate. A heating element above broils a section ...
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Kashrut of Oven Mitts [duplicate]

Since kashrut often requires one to have separate sets of cooking utensils for dairy and meat, should one use separate dairy and meat oven mitts?
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Is human placenta kosher?

There is, apparently, something called placenta encapsulation which means making pills out of a placenta postpartum for the purpose of digesting placenta. People claim that these pills offer unique ...
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Does soy milk need a hechshir

Does soy milk need a hechshir since they put in artificial things that can be trayf or its all natural and it won't need a hechshir
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The Torah's list of animals with one kosher sign

I have a question that has been troubling me for many years and I have never received a satisfactory response. On March 22, 2005 THE NY Times had an article entitled Religion and Natural History ...
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Creating a crowd-sourced database of non-dairy OU-D products

Several questions/answers on this site have pointed out that the OU-D hechsher does not always mean that the product is actually dairy. (But that it is, in reality, "OU-DE" [dairy equipment]. See here ...
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In vitro meat — further questions

Related to this question: Does artificial meat grown in a petri dish have the halachic status of meat? Assuming that in vitro meat becomes widespread and assuming that it would be hechshered per the ...
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Eating at Home and Maarit Ayin

Short question: is maarit ayin (מראית עין) a problem when one is home alone? Long question: assuming that in-vitro meat is pareve, even if it is maarit ayin to eat it with milk in public, would it be ...
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Milk-free cheese: Is it kosher? Parve?

So according to this article, scientists have created cheese by inserting DNA blueprints into a yeast. Essentially, the milk proteins are being created outside of any animal, through genetic ...
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Proper course for one realizing he is eating something forbidden [duplicate]

Suppose one was eating a piece of chicken, and he finds out it was from a non slaughtered chicken. Does Halacha require him to try to throw up?
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What defines “hard cheese” [duplicate]

I grew up with the minhag that after "hard cheese", one must wait for 15 minutes before one may eat meat. However, the question often arises as to what qualifies as such in terms of halacha and ...
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How to increase the demand for kosher food?

I live in the Hartford Connecticut area and while the population of people who practice the Jewish faith is increasing, the ability to find Kosher food is on the decline. Even the local Kosher grocery ...
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Can Jews eat hunted animals?

Are Jews allowed to eat hunted animals? That means the animals are dead before getting their necks cut. I do not think that a large proportions of ancient Jews were hunters, but I would be surprised ...
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Does an ivory spoon make hot tea non-kosher?

Both the handles of cutlery and entire spoons 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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How was kosher cheese made before artificial rennet?

I understood that cheese is made by throwing in Stomach hide into milk and letting it congeal. How was kosher cheese made (where one's not allowed to mix milk and meat)? Now we use chemicals or ...
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Eating in a non-kosher household [duplicate]

I am a converted Jew (mother is not Jewish, father is) who has recently began keeping Kosher. My mother is an excellent cook, and I greatly enjoyed eating what she made growing up. I still would like ...