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

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Can non-biological matter cause your sink, dishes, or food to become non-kosher?

For instance, if something non-edible such as a chemical or eraser shavings are drained down the sink, would that cause any kashrut problems?
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Using Dishwashers for both Meat and Milk

Can one use a dishwasher to wash both meat and dairy dishes, either simultaneously or consecutively? What about pareve dishes?
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Sources about the Kosher status of Royal Jelly

Royal Jelly ("a glandular secretion and its color is a whitish yellow. Its consistency is creamier and less viscous than honey. Its taste is bitter, although not offensively so.") according to this OU ...
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Eating bread/pastries from a non-Jewish baker

There are various commentaries that allow eating pat paltar, see here and here for a more extensive discussion. Going with the opinion that pat paltar is allowed what questions would one have to ask ...
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Is it halachically permissible for a Jew to own a casino?

For the purpose of my question, assume that the modern casinos have games which, on average, favor the house. They don't win every spin of the roulette wheel, nor every throw of the dice, but the ...
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Issur Sefichin on Otzar Beis Din produce

The Sages were concerned that individuals would plant vegetables in the seventh year and claim that these had grown by themselves. They therefore forbade consumption of Shemitta vegetables where the ...
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What's the way to check a mushroom for worms

Is there a way, and if so, what's the best practice for checking a mushroom to verify it is clear of worms?
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Dyo lesafrut - mutar beficha or not

I came across a thread today on the International Sta"m Forum. In the comments, some of the sofrim who frequent the site were debating whether sofer's ink, or dyo, need be mutar beficha (permitted to ...
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Do Strawberries acquired from a supermarket require washing to be kosher?

This question comes from someone who's interested in preparing and selling food items with strawberries as a main ingredient. In a scenario where many strawberries are being used at once, would each ...
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When koshering meat by roasting can I put pepper

What are the Ashkenazi and sifardi customs when kashering meat by roasting if it is permitted to use salt and/or other spices?
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Roasting unsalted meat

What are the customs in the process of making meat edible by removing the blood through roasting? Specifically after the roasting do I need to wash the meat to eat it (not to cook it afterwards)? ...
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Can one buy lettuce and cabbages, etc. from a non-Jewish produce store?

I have noticed that some non-Jewish owned produce stores in U.S. have someone trimming the rotten or ugly leaves off the edge of lettuce, cabbage and other similar leafy vegetables. The knife used is ...
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Restaurants with hechsher for locusts

Are there any restaurants in Israel (or other) that have a hechsher endorsing the preparation and eating of locusts in their restaurants?
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Does baby toothpaste need a hashgacha?

According to Rav Yisrael Belsky (and based on the reasoning of Rav Yaakov Kaminetsky) toothpaste which contains non-kosher ingredients (such as animal-derived glycerin) is only kosher when the ...
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does a water bottle become fleishig from a meal?

If I drank from a water bottle during a meat meal, does it become meat? Basically, if I drink from the same water bottle a few hours later, do I need to wait six hours again?
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Automated Cooking Machine Programmed

I realize in most situations to have a factory line be "cooked by a Jew" an observant Jew would have to turn the oven on, stove on, or something along those lines. This morning I saw this article ...
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Why separate verses for the camel, hare, and hyrax?

In vayikra 11, we're given an overview of the kosher and non kosher animals. Among mammals, it singles out four as explicitly non kosher: the pig for only having split hooves, and the camel, hare, and ...
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Cranberries on Passover

Are fresh cranberries, bagged with OU (year-round) certification, kosher for Passover?
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Is arak kosher for pesach without a specific P hechsher?

I have a bottle of The Spirit of Jaffa Arak (ערק הניחוחות של יפו) with a regular circle-K hechsher as well as hashgachat-badatz-yerushalayim. Is there any reason this shouldn't be kosher for passover ...
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Is Ethanol Mixed Gasoline Kosher for Passover

Typically in the US, gasoline for cars is a mixture of refined crude oil and some ethanol up to 10%. Since ethanol in the US is corn based, by buying gasoline are you buying kitniyot?
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Is Frank's hot sauce kosher for passover? [closed]

Is Frank's hot sauce kosher for passover? I just called up the French's food company and they said that the vinegar they use is derived from corn, so it is not חמץ גמור, but it is kitniyos.
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Can you buy a beggar non-Kosher food, or chometz on Pesach?

If I am asked for money by a beggar on the street, or see a homeless person with a sign, I try and give them food as it is usually more useful than money (which will probably be used for alcohol or ...
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Kashrut with very costy salt?

Currently the cost of the salt (for human consumption) is practically negligible, mostly around $1/kg. But it wasn't always so. There were centuries as salt mining and selling was a governmental ...
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Starburst Fruit Chews kosher?

Are Starburst Fruit Chews kosher? This website below clearly has an OU on the right side. However, Gelatin appears on the ingredient list, and the oukosher.org website doesn't have any reference to ...
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any point to avoiding meat and shellfish at non-kosher restaurants?

Some Jews have a practice of keeping kosher at home but eating at non-kosher restaurants, where they will be sure to avoid ordering meat or shellfish. Is there any "point" to this from a halachic ...
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Covering clean surfaces on Pesach

There is a prohibition of eating even a crumb of chametz on Pesach. After cleaning a surface with bleach (or the like), any remnant of chametz is not considered fitting for a dog to eat and certainly ...
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Kashrut - Why is Halal label on Kosher meat? [closed]

I have noticed that Of Tov has Halal listed on their meat products. How is this halakhically possible? The Quran teaches that Kosher meat is not permissible for Muslims only grain is permissible. How ...
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What are the issues with a woman mashgiach?

I hear that many people won't allow a woman to be a mashgiach. Why is this?
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Does fish need to be inspected for non kosher fish, flies and worms?

I'm not sure if commercial fish is inspected in any way. I know that most commercial fish is caught in nets, so I don't think that bait is used. When individuals go fishing, they use worms, flies, or ...
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Why would aluminum tins need a Kosher L'Pesach hechsher?

A few days ago, my son noticed that a small aluminum tin that we used had a stamp from the Badat"z that said Kosher L'Pesach. I know that people put food in aluminum tins. But I don't know of anyone ...
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Do popcorn kernels have to be checked for bugs?

There are many vegetables, legumes etc which according to poskim need to be checked for bugs due to insect infestation. Can anyone tell me if this is also true for popcorn kernels?
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Sephardic Halakhoth for Kashering a Sink

Moving into a new place, the previous tenant was not Jewish, and the sink is made from porcelain. i know that Hacham Ovadia Yosef Zal allowed Sephardim to kasher a porcelain sink for Pesach by using ...
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Can one rely on halal combined with vegetarian labels?

i understand that halal can not be trusted for meat, but what about items that are certified halal and certified vegetarian? There are many vegetarian curry pastes and other spice pastes that can be ...
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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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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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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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Beef Jerky by a non frum person

Can a person make beef jerky in his house if he is not frum. if he says his house is 100% kosher and all his utensils are kosher but he does not keep kosher outside of his home nor does he observe the ...
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Eating in a restaurant that is not under the beth din

Can one eat in a resturaunt that claims to be kosher, yet does not have a certified kashrut certificate from the local beth din? Is this a violation of a prohibition by the owner? Does the owner have ...
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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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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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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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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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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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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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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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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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How do we know that non-hechshered food is not kilayim or kilay hakerem?

"Kilayim" and "kilay hakerem" are two classes of prohibitions on eating from "mixed" fields (in which more than one type of crop is planted.) "Kilayim," as I understand it, specifically refers to the ...
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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 ...