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

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Is jam a davar charif?

I learned that juicy fruit are considered a davar charif. Is jam or preserves made from such types of fruit also a davar charif? Why or why not?
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Assuming something has remained Kosher

When someone buys a product with Kosher certification, do they have to check to make sure that it is still certified Kosher or can they rely on the fact that the last time (or first time) they bought ...
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How big, and what exactly, is “Kedei Kelipah”?

{Kedei Kelipah is a term used in Kashruth for the amount of something that needs to be removed in order to allow one to treat the remnant as Kosher. (This only applies under certain conditions, which ...
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Can certified vegan be assumed to be pareve? [duplicate]

If a food item has a valid kosher certification, which marks it as being dairy, but also has certification from a vegan certification that it is vegan, can it be assumed to be dairy equipment? I ...
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670 views

Brands of KFP peanut butter in the US

Does anyone know which brands of peanut butter are Kosher for Passover in the US? Alternatively, I have heard that there is a list for Sepharadim of KFP products that contain Kitniyoth. Can someone ...
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137 views

toveling racks from new built in wall oven

If someone is having a wall oven installed, should the racks that come with the oven be toveled as a separate item? Note that racks of this type can be removed from the oven.
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Can rags and oven mits become non-kosher or be kashered?

If kitchen rags or cloth oven mits have been used in a non-kosher kitchen, may they be used in a kosher kitchen after they are laundered? Or do they become non-kosher (for example, from contact with a ...
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Verifying powdered milk

If someone keeps cholov Yisroel but is lenient when it comes to powdered milk, is there a halachically reliable/valid way to verify that a product is made with powdered milk as opposed to fresh milk, ...
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Can an enamelled pan be changed from meat to milk/pareve? [duplicate]

I have a metal pan that is enameled white on the inside, which I have had for more than 40 years, and hardly used. I originally intended it for meat, but now I think I might get some use out of it if ...
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Can one use a gas grill for both meat and dairy (with lots of other caveats) [closed]

The basic question is, can the same grill be used for meat and milk. But this question has a few sub-questions/caveats and cases that I'm curious about. 1- I'll assume that the same grill grates ...
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Who is this certification ([KA] in a square)?

Which organization uses this symbol? It was seen on a package of candy (Goody Good Stuff is the brand) in the Netherlands.
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Commercial kosher slaughter

Kosher slaughter today is mainly carried out in large factory settings, with each shochet slaughtering hundreds or even thousands of animals every day. The required inspections of organs is also ...
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Toasters in motels / cabins

I rented a cabin last week. In the kitchen was a clean toaster - not a toaster oven, but the "retro" kind for 2 slices of bread. Could I have used it? My assumption was it's OK b/c the electrical ...
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101 views

Coffee Machines in Hotels

Many hotels have coffee machines in the rooms. They also usually provide the necessary ingredients, such as disposable filters and coffee grinds. What are the potential problems with using such a ...
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174 views

Why does the use of horse manure as fertilizer not make produce non-kosher?

Horses are non-kosher and its manure is also non-kosher. If you use the manure as fertilizer on, say, potatoes, isn't there some concern that the potatoes may absorb some part of the manure? If so, ...
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What is the difference between kosher and permitted food?

I wish to allude to this answer, which distinguishes between "kosher" and "permitted" (and "non-kosher" and "forbidden") foods for purposes of knowing when to make a bracha. Can someone explain this ...
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Terumot and Maasrot in Israeli Shuks

Ordinary Israeli fruit and vegetable stands do not carry teudah. Does the Israeli government ensure terumot and maasrot are taken at some point? For example, can one taste produce in Machane Yehuda or ...
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Does flavored drip/ground coffee require a hechsher?

It seems like plain unflavored coffee does not need a kosher certification. Does flavored drip/ground coffee require a hechsher?
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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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Food Stringencies and Dishes

May one eat who avoids certain foods as a stringency (eg. foods which aren't Chalav Yisroel, Pas Yisroel, and Bishul Yisroel) use plates and/or cutlery that are otherwise kosher but have been used in ...
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139 views

What makes a movie “kosher”?

Several years ago, when my kid was in camp, I asked him what he did on a rainy day in camp. He said that they watch a "kosher movie". OK, I know that the word "kosher" is used generically in English ...
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Does breast milk make vessels non-kosher or milchig? [duplicate]

I understand that breast milk is kosher only for babies and is traif for adults. But does breast milk make other vessels non-kosher? For example, if I put a spoon, knife or fork in the breast milk, or ...
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Test tube meat: Pareve? [duplicate]

Meat that is grown in a test tube - also known as in vitro meat - would seemingly fall outside of existing kashrut categories. You do not need to kill an animal (thus no need to schecht). Would it ...
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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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Kosher flavored beer without certification on the bottle?

I've always heard that the rule in the United States is that domestic non-microbrewery/craft unflavored beer needs no certification as kosher, as all such beers are kosher, but that any other beer ...
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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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Why is kosher wine or grape juice rare alone but less so as an ingredient?

My understanding is that wine or grape juice is s'tam yenam and forbidden if handled by non-Jews without having been cooked. (See, e.g., an explanation on chabad.org.) The practical result of this, ...
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Who certified this yogurt as kosher?

Looking at unclear heshers on some yogurt packages: Dannon "Light and Fit" yogurt has a capital K without any other identifier. Yoplait "Light" has a capital K D. I was told that the letter K alone ...
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112 views

Should a Jewish cashier scan treif items?

On the basis of Vayikra 11:8, is it permitted to work as an employee at a grocery store as a cashier (not the owner of the business), which would entail touching packaged yet non-kosher food items ...
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126 views

Can I eat chocolate melted in a meaty pot and then combined with dairy?

Suppose I'm making some dessert, like cheesecake or ice-cream sundaes, by melting chocolate and pouring it over the dairy dessert. I realize after doing this that the pot I used was fleishig and used ...
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Craving for Non-Kosher Food

If a pregnant lady craves for something not kosher is she permitted to eat it? Source? Does it depend how much she wants it, etc.?
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hot pot and trief

I heard that placing hot pots onto counters or refrigerator shelves could treif the pot (although not its contents) if the counter or shelf is dirty with an opposite type of foodstuff. Is there a ...
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The concept of glatt

Where in the Gemara do you find the concept of meat being "glatt"? Or where do you even find the concept of "kosher lmehadrin."
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Cities' רבנו‏יות's accepting others' food

Years ago, IIRC, I heard the following from a respectable source: By Israeli law, if the רבנות of one city certifies a food as kosher, then the רבנות of any other city must allow that food as an ...
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Bishul Akum: State Dinners

How do we know precisely what foods fall under the "King's Table" exemption to the rule against Bishul Akum? It is obvious that foods like potato chips probably won't be served at a state dinner, and ...
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263 views

Kashering with a potted plant

On Friday, my grandmother made a comment about kashering a knife by sticking it in a potted plant (with very loose soil), something which will not kasher anything. What is the origin of this ...
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Mashgiach and a restaurant staying open on Shabbos

This question notes that in Israel, a restaurant cannot receive a hashgacha if they are open on Shabbos. However, in the U.S. this doesn't seem to be the case. What rules do mashgichim rely on to ...
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Does a mashgi'ach revoke a store's hashgacha when health department finds insects?

The city health department has cited a kosher restaurant as having violations because they found mice and insects crawling on the food in the kitchen. Since mice and insects are non-kosher, I'm ...
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Is the blood of a non-Kosher animal forbidden because of וכל דם לא תאכלו

Inspired by a recent chat discussion related to this question. Does the prohibition of וכל דם לא תאכלו - not eating blood - apply to non-Kosher animals? The Rambam writes: ודבר מפורש בתורה שאינו ...
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Is swordfish Kosher?

What's the deal with swordfish? Is it Kosher? Which sources say yes, and which sources say no? EDIT: I know that R' Dr. Moshe D. Tendler is well known for having consulted with scientists (in 1951) ...
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Ramen and a hechsher?

I just came across this article about improvising around instant ramen. Assuming that the flavour pack is independent of noodles, does one need a hechsher on ramen?
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Grill used for neveilot

Assuming I have a grill and someone I know uses it, without my permission, to cook meat from a neveilah (or perhaps not, but kosher species without certification). What is the status of the grill and ...
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Off the Derech Parent [closed]

In what instances to kibbud av v'em apply to a parent who has become less religious? For example, of the following points, which battles are worth fighting? Kashrut Shabbat Chaggim tzniut As ...
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If a restaurant is already halal, how much more work is it for them to become kosher?

There is a middle-eastern restaurant1 (independent, not chain) near my workplace that my coworkers think highly of. Today I learned that it is halal (some info about what that means), which got me ...
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2answers
189 views

May a person order food from a vegan restaurant

May a person order food from a vegan restaurant? — assuming you aren't ordering cooked food, to avoid the problem of bishul akum. If your ordering let's say a salad, what could be the problem? ...
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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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asking to see a kashrus certificate

A restaurant has a sign on its window, or a notation in an advertisement, indicating that it's under the kashrus certification of Rabbi So-and-so or Agency Such-and-such. The first time someone walks ...
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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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What defines a non-kosher restaurant for purposes of maarit ayin?

There is a known halacha that one shouldn't eat in a non-kosher resteraunt due to Maaras Ayin, even though they serve kosher food also. What defines a non-Kosher restaurant? McDonald's is probably ...