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

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Are potatoes considered a food that is fit for a king's table?

Are potatoes subject to the prohibition of בישול עכו״ם? Are they considered foods that are fit for a king's table? This story I found quite fascinating and I wonder if it has any bearing on this ...
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Do those who keep Cholov Yisroel eat products marked “K-DE”?

Some hechshers have the designation "DE" for "Dairy Equipment." Do those who keep Cholov Yisroel eat food with this designation? (I am mostly talking about the minority who consider [American] cholov ...
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How can I make my home kosher enough for ~most Jews to be guests in? [on hold]

Let's say I wanted to set up a kitchen/home that was kosher enough for most of the Orthodox spectrum to feel comfortable eating and staying in. (By "most," let's say the first two standard deviations ...
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Is Cup-K reliable?

I've recently seen a hashgacha around NYC called Cup-K or CupK. However, I have been able to find precious little about it and what I have found seems mostly to consist of unsubstiatable rumours. Does ...
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What is the justification for not requiring “chalav Yisrael” cooking equipment for those who don't hold by R' Moshe's leniency?

As Shalom explained in his answer to a question about chalav Yisrael milk, R' Moshe Feinstein ruled that in countries where the local government regulations are sufficient to ensure that cow's milk is ...
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Who holds that Cholov Yisroel is not a chumra?

Which groups or authorities consider Cholov Yisroel to be normative halacha and not a chumra? (Possibly equal to, "Who considers cholov stam treyf"?)
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Cold smoking and kashrut

related Cold smoking is a process by which food is cured by contact with smoke which fills the whole vessel but does not [ideally] exceed 80˚F, which is well below yad soledet (at least for my hands) ...
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Gardening produce - fertilizer with blood meal, kosher?

So as I'm getting ready to grow citrus trees and veggies, I went on the hunt for fertilizers (individual household, not a commercial farmer). I noticed that a whole lot of fertilizers use an ...
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Malibu coconut rum Kosher?

Anyone has an idea if malibu coconut rum is kosher?
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How can one eat non-certified kosher Israeli produce?

In Israel, there are many stores that are not certified kosher that sell produce grown in Israel. What is the procedure for taking teruma and maaser, and is there anything else a buyer would need to ...
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Japanese Ritz crackers and OU certification

In Japan there are some food products that are identical to American brands but with Japanese packaging. For example, here is the Japanese box for Ritz crackers: Ritz are certified kosher in ...
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Can you use a not kosher knife sharpening stone/wheel [duplicate]

I learned the the sharpening stone kashers the knife But are there any sources regarding the use of a sharpening stone/wheel that was used for non kosher knifes (possibly used even when dirty knives)...
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Will parve item remain so within a fume-proof vessel heated inside a meat stove? [closed]

I'm laying out my kitchen for kosher and have decided to make my stove and oven all meat. I'll have a separate nook for cooking dairy. The problem is baking hallah. Normally that is a parve recipe. ...
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64 views

When does a kosher place need a mashgiach temidi?

I notice that some kosher places have a mashgiach (kashrut inspector) that vsists the place occasionally. Others have someone there permanently. What criteria is used to decide if a place needs a ...
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What is an effective separator for adjoining steel sinks divided into meat and dairy?

Chabad recommends: "...Separate sinks for washing dishes and preparing foods are recommended. If the two sinks are adjoining, there should be an effective separation between them so that no water or ...
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Must one use a separate grill for meat and fish?

As there is a prohibition of mixing meat with fish because of sakana ("danger"), I assume that if one has a small grill, one cannot grill meat and then grill fish (or vice versa) without cleaning the ...
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549 views

Should I run meat towels and dairy towels in different laundry loads?

In part of learning to keep a kosher home, I understand I need to keep two sets of kitchen towels, tablecloths, etc. How do I maintain these items in a kosher state? Should the towels be run through ...
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Davar charifs and chometz

"Davar charif" is a term in kashrus which refers, as I understand it, to sharp or caustic foods which may absorb flavor from a knife used to cut them, rendering them, say, fleishig if the knife is ...
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What does the term “glatt kosher” mean, today?

A mashgiach explained to me that the term "glatt kosher" means that the lungs of cattle and sheep (the 2 main kosher animals sold in U.S.) are smooth and do not have air pockets. I hope that I have ...
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Can a Jew follow another religion's dietary laws?

Suppose another religion has dietary laws that overlap with those of Judaism. For example, Zoroastrianism prohibits eating all land animals and prohibits eating various kinds of fish and other sea ...
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Is the use of the term “Glatt Kosher” a case of “Genivat Da'at”?

My understanding of the term "Glatt kosher" which I heard from 3 different mashgichim (kashrut supervisors) The term "glatt" means "smooth" and applies only to beef and lamb. (I would assume that it ...
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Is checking for bugs halachically required?

Various methods of checking for bugs in produce, i.e., lettuce, are officially recommended by kashrus agencies and other halachic professionals. However, is use of one/any of these methods--or even a ...
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Koshering canning jars

If someone cans using Ball brand glass canning jars (and new lids are used every time, so nothing to worry about with those), In the normal canning process, the jars are boiled to sterilize them prior ...
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Kashering a stove

The common custom I have noticed is for people to use the same stove top for meat and dairy. However, people also claim you need to kasher a stove top before use. How are these two positions not ...
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Hard Boiled Eggs

I heard second hand that one can eat hard boiled eggs on pesach, even if they were cooked in a not kosher l'pesach pot (presumably non-ben yomo?). Is this true? If so, why? Would one consequently be ...
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Is deer antler velvet kosher?

Is deer antler velvet kosher? I'm referring to this: http://www.esupplements.com/products/dvx-pro-liquid/?mobile=1 Or this: http://www.esupplements.com/products/deer-antler-velvet-pro/?mobile=1 I ...
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Is there a detailed explanation for Bereishis 18:8? [duplicate]

וַיִּקַּח חֶמְאָה וְחָלָב וּבֶן־הַבָּקָר אֲשֶׁר עָשָׂה וַיִּתֵּן לִפְנֵיהֶם וְהֽוּא־עֹמֵד עֲלֵיהֶם תַּחַת הָעֵץ וַיֹּאכֵֽלוּ׃ I know the Torah was not given at this time, nor had the Sages explained ...
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May non-kasherable items be put into kosher service if they arrived new-in-box?

I understand that glass and ceramic are not kasherable but they still are by far the most convenient and least expensive materials for dishes and cups. If these vessels were purchased new-in-box, it ...
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What dishware material is microwave safe and also kasherable?

I'm confused by some of the rabbinical advisory websites regarding what dishware can be kashered. Evidently glass and ceramic, the most convenient microwave safe materials, according to Askkenasi ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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What is the overall procedure to upgrade a kitchen to kosher service?

If a Jewish family buys a house from Gentiles, naturally the kitchen would not be left in a kosher state. What is the list of special decontamination or other upgrade procedures necessary to convert ...
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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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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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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 ...)