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

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There is Always Blood in Meat [duplicate]

All meat has at least some blood in it, no matter the form of kashering , salting or cooking. How much is too much? Why don't the red/pink blood-containing "juices" make meat eating forbidden?
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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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In Israel, what is the difference between l'mehadrin and badatz

In Israel, what is the difference between l'mehadrin and badatz? Also, is there a regular kosher that is different from these two? Do they differ with respect to kashrut standards (e.g., require pas ...
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2answers
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Do roasted peanuts in their shells require a hechsher?

I know that non-Israel grown raw peanuts in their shell are considered plain "vegetables" / legumes and do not require kosher certification, as other untouched fresh fruit / veggies. Shelled peanuts ...
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3answers
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Why isn't eating milk with chicken kosher?

I remember learning that the reason you don't eat milk with beef is because you shouldn't cook a calf in its mother's milk. However, when you are dealing with two different species, this same logic ...
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Achva brand Halva…kosher for Passover? [closed]

Is Achva Halva with Cocoa Beans kosher for Passover? Reading the ingredients, it doesn't seem like there's anything in it that would say otherwise, but I'm not sure. Thanks. Sesame, Glucose syrup, ...
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1answer
45 views

Can Kosher Be Cooked nearby Non-Kosher?

I want to start a restaurant. I would like to cater to both non-kosher and kosher populations. If the restaurant kitchen has a separate fridge, kosher ingredients, separate stove, separate ...
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1answer
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Can meat grown from living cells be kosher? Is it eiver min hachai?

Earlier questions such as In vitro meat — further questions dealt with meat grown from stem cells of slaughtered animals. This question is specifically about meat grown from stem cells taken from live ...
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Coca Cola on Pesach

Yabia Omer writes that Citric Acid isn't a issue on Pesach. Does that deem Coca Cola Kosher for Passover even without a hechsher as a Sefardi?
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Reheating Food Cooked Before Passover

Let's say a family cooked some non chametz food before kashering their dishes before Pesach and saved the leftovers to be reheated later. A few days go by and Pesach gets closer, and they kasher all ...
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Getting Married With Different Customs

B'H I'm getting married in a few months and my fiancée waits 3 hours between meat and milk and I wait 6. In general, does a wife take on all the customs of her husband? In my example, would she have ...
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How to tell if can use bird feed on paisach

How can I tell if this bird feed can be used Ingredients: White preso millet, golden german millet, red proso millet, flax seed, canary grass seed, niger thistle, rape seed, oat groats, dehydrated ...
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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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2answers
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Where does the concept of food transfer come from?

If I cook a cheese omelet in a skillet, then wash the skillet and cook a steak in the same skillet the steak is considered to have absorbed the dairy-ness of the cheese and is now consider not kosher. ...
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Does jam have the halacha of duchka d'sakina?

The Chochmas Adom in 49:9 holds that all fruit have the halacha of duchka d'sakina, and that if you cut a fruit with a meat knife which was not definitively clean, you need to scrape off the outer ...
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107 views

Alcohol sales despite government monopoly

Many places have government imposed alcohol monopolies and private retailers of alcoholic beverages are forbidden. As alcohol, especially (red) wine, has a central place in Jewish practice and as ...
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1answer
64 views

What is today's Jewish explanation for why rabbit meat is unkosher?

In yesterday's parasha, we read not to eat rabbit meat because it chews its cud (Vayikra 11:6): "ואת הארנבת כי מעלת גרה " Today, we know this is not true. I am curious as to how religious Jews ...
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1answer
65 views

How do I determine kashrut status of fresh produce from Israel?

Fresh produce from Israel has all sorts of halachic concerns: Orla, Shemittah, Terumot and Maasrot. Periodically, I come across fresh fruit imported from Israel. I generally avoid buying it, but I'd ...
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1answer
78 views

Who accepts the “chazaka” method of checking vegetables?

Several sources endorse a method of checking produce in which the batch of produce is washed, three random samples from the batch are inspected for bugs, and, if these samples are entirely clear of ...
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Are the non-meat parts of a non-kosher (i.e. impure/tameh) animal ossur min haTorah

In a different question it was asked if the blood of a non-Kosher animal is forbidden under the same issur that blood from a kosher animal is forbidden. It's brought there from that Rambam that: ...
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2answers
211 views

Animals vs. plants: kashrus

Why did God make all plants, but only some animals, kosher? Sources, please.
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Why do we exclude fruit and vegetables? [duplicate]

We see in Vayikra, chapter 11, lists of kosher animals (land, water, and flying), but I don't see any mention of vegetables? Why did the Torah leave out vegetables when it speaks of kashrut?
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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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How to keep a yoshon kitchen [duplicate]

Yoshon refers, very roughly, to grain products that have grown through at least one Pesach. Some have the stringency to eat only yoshon grains. How does one go about identifying yoshon flour and ...
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3answers
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What are the kashrut issues with kosher food at a non-kosher restaurant?

What are the major kashrus/halachic issues with going to a non-kosher restaurant and ordering, say, [kosher fish] and vegetables; dressed with only extra-virgin olive oil, salt and pepper; ...
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Can a Torah be made using parchment from a neveilah or treifa? [duplicate]

I read (will edit source, when I locate it) that the parchment used from a Torah must come from a "kosher animal". Does the term "kosher" mean "edible" or just an animal that is among the list of ...
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1answer
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Do you have to check eggs that have a hechsher?

In general, one checks the yolks of raw eggs for blood spots before using them. However, is it strictly necessary to do this with eggs that have a hechsher on the box? Please provide an authoritative ...
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How do I upgrade a kitchen to kosher service? [closed]

I just got divorced from a gentile (DON'T ask why I married her in the first place!) and the judge gave me the house. I understand the basics about separating meat and dairy, but are there any ...
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2answers
299 views

Can one trust the Kashrut of Alcoholic Beverages in bars?

Kosher organizations, like the CRC (Chicago Rabbinical Council), supply lists of alcohol recommended for purchase and consumption. May one purchase these alcoholic beverages from a bar (where the ...
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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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2answers
195 views

Are GMOs Kosher?

Currently taking a biology class in which genetically modified foods were discussed. Some of the plants had DNA from non kosher animals added into the plant genes. How does this impact the kashrus of ...
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1answer
646 views

Is human flesh a kosher food?

Is human flesh a kosher food? Please provide both modern and classical sources.
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Current Chicken Controversy in Jerusalem [closed]

The original questioner asked the following: What is the kashrus problem with Eida Chareidis Chickens, and why does the Eida think its not a problem? (kikar.co.il/194374.html – @kouty) However this ...
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Eat a chicken food with milk is allowed?

I wonder if eating a chicken food in which its ingredients take milk or cheese is allowed. (For example: Eat a Chicken Stroganoff; Or a chicken stew with sour cream ...)
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2answers
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Need for Certification of Sake

Does anyone know why all the kashrut organizations (that I know of), require all sake (the Japanese alcohol) to have a hechscher? I would think that since junmai sake is required by law to contain ...
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1answer
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Whale-yeast Beer

This article describes a beer created with yeast from fossilised remains of an ancient whale. From what I understand, the yeast imparts certain characteristics to the beer other than alcohol content. ...
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Is there a problem with Triangle K? If so, what?

I want to know what the OU's or any other Orthodox kashrut agency's problem is with Triangle K. I have read about the Ralbag family which founded and runs the Triangle K and they are clearly Orthodox. ...
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1answer
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Cholov akum and cholov yisroel

Is cholov akum 100% treif (not kosher)? If so why does it get a hechcher (kosher supervision stamp)? And if it's not treif, is it assur (forbidden)?
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1answer
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Eating non-kosher food then drinking out of kashered cup?

Does drinking a cold drink several minutes after eating cold non-kosher food render the cup non-kosher since it is making contact with the mouth, which may still have remnants of non-kosher food in ...
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Why dont yeshivos and summer camps have kashrus hashgacha?

We dont rely on eid echad neeman beisurin in our local stores, so why do we rely on the owners of most schools and camps that everything is kosher?
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What is the basis for eating in someone's house without a kashrut certificate?

No one asks for a kashrut certificate to eat in someone's house; they just make a rough judgement based on the host's reputation (the way they dress or behave, the circles they move in, etc.). That ...
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1answer
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Jewish owned dough bake by a non jewish baker

It states in shulchan aruch yoreh deah 112 11 "bread of a jew that a non jew baked without a jew's stirring or adding fuel, is forbidden to sell to a non jew lest a Jew buy it from the non jewish ...
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Kashruth of Terra Cotta

What are the halakhoth regarding unglazed terra cotta flower pots? Does it absorb? Can it be kashered, and if so, how? Sephardic rulings preferred, but will take any sources.
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Is AquAdvantage salmon kosher?

After two decades of deliberation, the USA's Food and Drug Administration has approved the first ever genetically engineered food animal, a fast-growing Atlantic Salmon called AquAdvantage ...
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3answers
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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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0answers
53 views

Is it permitted to share a plate or bowl with a pet (such as a cat or dog)?

Is it permitted to use the same plates and bowls to feed a pet cat or dog which are also used for eating? Assuming the pet is fed kosher (for humans) food is this permitted? Are there any issues ...
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2answers
57 views

Is there spiritual meaning behind Kosher?

Is there spiritual meaning behind Kosher? What do the Rabbis, Torah, Talmud and so on say about this question? (I know many say that we don't know. This is a question for those who have a spiritual ...
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What rules need to be followed in order for a non-Jewish professional chef to cook Kosher food for a Jewish customer?

I'm a non-Jewish professional chef in a restaurant, and I am marginally aware of kosher dietary restrictions. I know that the food itself, as well as the pots, pans, and other utensils used in ...
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Untoiveled but used dinnerware and cookware - how to salvage if possible? [duplicate]

What's the deal with untoiveled, but used, dinnerware and cookware? Can they still be toiveled to make usable/kosher or must it all be tossed?