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

learn more… | top users | synonyms (3)

4
votes
1answer
72 views

Transfer of taste to/from non-food items

There are a number of heating pads on the market for heat therapy cures and general warmth in the winter. Some are electric, but some of them need to be heated in a microwave or an oven. If you heat ...
10
votes
2answers
414 views

Zimun and Bentsching (Bircat Hamazon / Grace After Meals) with Jews who ate non-kosher food

I came across an interesting situation recently. I was eating with Jewish, non-observant friends. I brought over a hamburger from a local kosher take-out place. They had homemade, non-kosher food, ...
8
votes
2answers
293 views

Does kosher mean healthy?

What is the relation between kosher and healthiness? G-d wants us to eat properly but also to be healthy. For example, it is better to try not to eat too much meat (even if it's kosher), and more ...
10
votes
2answers
297 views

Kosherizing Water using Distillation

Suppose I have water that was cooked with non-kosher food. I then take the water and distill it. Would this water be considered permissible to drink?
13
votes
5answers
15k views

What Issues Exist with the Tablet K Hecksher?

The Tablet-K hechsher is quite common on products in US supermarkets - especially cheeses. There seems to be a strong sentiment that it is not an acceptable hechsher, but I've heard no halachik ...
12
votes
1answer
573 views

Food in bathroom

Is one allowed to take food into the bathroom? I heard that the prohibiton is only on the type of bathroom used years ago.
6
votes
4answers
270 views

Is autocannibalism halachically prohibited?

I was wondering if sucking your own blood or biting at your own scab or otherwise consuming yourself was halachically permissible, since, as far as I can tell, humans are not kosher. Even so, it would ...
8
votes
1answer
291 views

Bitul BeRov - the classic case in real life

In Halachah there's a tremendously powerful concept of Bitul BeRov (nullification among the majority). It goes like this: If you have three identical pieces of meat, and you know for a fact that one ...
8
votes
2answers
272 views

Issues with cooking meat and milk at the same time

What issues are there (either potential or inherent) in cooking meat dishes and milk dishes at the same time on the same stovetop (not in the same pot)? Please also compare benefits and problems ...
3
votes
5answers
292 views

What was the first product to receive Kosher certification?

What was the first product to receive Kosher certification?
5
votes
3answers
3k views

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 ...
5
votes
2answers
140 views

What possible Kashrus concerns may exist with these vitamins?

Recently my child's Doctor prescribed vitamin drops for my infant son. When I went to the pharmacy to fill the prescription the pharmacist said that the vitamin drops prescribed are Treif, and the ...
6
votes
2answers
159 views

Is it permitted to eat dirt?

If you find small (but visible) pieces of dirt on your food or drink is it permissible to eat it? Are there sources that discuss this? By dirt I mean "an unknown foreign object that makes the food ...
15
votes
4answers
675 views

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 ...
11
votes
1answer
689 views

Drinking cold kosher beverages in a non-Jewish relative's house

Let's say you're staying at a non-Jewish relative's house. He bought you kosher food because he knows you keep kosher. He buys you a drink such as milk. You see him pour the drink for himself into his ...
6
votes
1answer
494 views

Eating in less-religious homes

May one eat a meal in the home of one who attended yeshiva and who one considers trustworthy vis-a-vis making sure everything is kosher for their guests, however, one is reasonably certain they do not ...
7
votes
1answer
194 views

Timtum Halev not b'derech achila

Does the notion of Timtum Halev -- dulling of the heart (spirutal damage) which Rabbeniu Bachaye explains in Vayikra 11:43 -- apply when the non kosher food was put in one's body without doing it ...
7
votes
6answers
335 views

why create non kosher animals?

why did hashem create non kosher animals, was it to tempt us and see if we would control ourselves?
11
votes
2answers
756 views

Why do Fish not need Shechita?

In order to eat "regular" Kosher animals, there is a requirement for the animal to undergo Shechita (ritual slaughter). If an animal were to be killed / die without Shechita it is forbidden to be ...
16
votes
4answers
633 views

Are Animal Crackers depicting non-kosher animals non-kosher?

Are animal crackers that depict animals such as swine, lions, and camels treif?
6
votes
1answer
133 views

Place Mats - Why and When?

When are placemats needed when eating, and why are they needed?
14
votes
2answers
382 views

Orthodontics and period between eating fleischig and milchig

Since orthodontics often impose many artificial little crevices and wires and generally make one more susceptible to having bits of food stuck in the mouth for extended periods of time, is it ...
11
votes
4answers
206 views

Waiting Less Time on Shavuos

My family has a minhag to wait less time (3 hours as opposed to 6) between Meat and Milk on Shavuos. I was wondering if this has a written source? [or if not, has anyone else heard of it?]
12
votes
2answers
900 views

If chicken eggs are parve, is caviar considered “fish”?

Chicken is classified as "meat" and cannot be eaten with dairy. Chicken eggs are considered parve and can be eaten with meat or dairy. Fish and meat cannot be eaten together either. Does the same ...
4
votes
1answer
308 views

Gigantic Tiger Fish - Is it Kosher?

Is this fish Kosher? It apparently has both fins and scales. Is there any problem with its having teeth, or its not having been discovered until now (and therefore being outside of our Mesorah)?
11
votes
1answer
209 views

In a bulk food store, must I ask to see the original label every time I return and buy my favorite food?

I know that where I live, some foods don't need kosher certification. But most do. Say I go to a reliable bulk food store, ask to see the original bucket that a certain food came in, see a reliable ...
5
votes
1answer
125 views

Timing of the Commandment of Gid Hanashe

The Torah mentions, after the story of Yaakov getting injured in Parshas Vayishlach, that we do not eat the Gid Hanashe for this reason. The Meforshim seem to concur that this mitzvah was included in ...
7
votes
1answer
113 views

Is one allowed to eat foods that were grown from non-kosher materials?

There is a known story of how one time a person brought a giant carrot on Erev Pesach to the Belzer Rebbe (back in Europe) for Karpas. After the donor left, he said "burn it with the Chometz". As the ...
6
votes
2answers
195 views

Hagala for a new pot

I know that there is a halakhic necessity to tovel a new pot. However, has anyone ever heard of the halakhic necessity to do hagala on a new pot? Reason for asking was this.
4
votes
1answer
4k views

Reliability of the OKS

I dont know if this type of question is allowed but I was told to ask it here The symbol is on some restaurants in the NY tri-state area (like Crumbs Bake Shop for example) and I have heard of quite ...
3
votes
1answer
332 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 ...
1
vote
2answers
76 views

Online resources for KFP products

Does anyone have a reliable list (or lists) of Kosher for Passover products that is (or are) available online? {There are several that I've used in the past, but they seem to be cut off in their ...
5
votes
0answers
2k views

Is Rum Kosher for Passover?

Specifically, is Bacardi Superior Original Premium Rum kosher for Passover? The label doesn't say so, nor does it say that it's kosher in general for that matter, but since it has a sugar base, ...
17
votes
2answers
726 views

Why doesn't the OU put DE on food packages anymore?

The OU used to put DE next to the OU symbol when a product was Dairy Equipment. Such a product can not be eaten with meat but can be eaten right afterwards (you don't need to wait the amount of time ...
6
votes
2answers
1k views

Is it OK to eat non-certified-as-kosher sushi?

I've heard the argument that since everything in sushi is raw (assuming there are no non-kosher ingredients), and that since the rice is cooked in a rice cooker that is used only for rice, it's OK to ...
4
votes
2answers
171 views

What makes something chametz?

Can I a recipe that uses flour but not water? As kids, we all learned that if the water and the flour touch for more than 18 minutes, then the matzo is chametz. When 20 ingredients are combined, ...
5
votes
1answer
96 views

Permissibility of making Matzah by frying

Does anyone know of an opinion permitting Matzah to be cooked in a skillet(instead of being baked in an oven), and if so under what circumstances?
6
votes
2answers
631 views

Is Red Bull™ kosher?

Is the Red Bull™ energy drink kosher?
6
votes
3answers
223 views

Can Whole Fruits or Vegetables Have Non-Kosher Additives?

Many (perhaps all?) fruits and vegetables grown these days contain various "other stuff" such as pesticides and protective coatings. I suppose that fruits whose peels are removed do not pose a ...
2
votes
2answers
148 views

The Shafan and Arneves

What are the Shafan and Arneves (Leviticus 11:5-6)?
7
votes
2answers
154 views

Does kashrut depend on peah, leket, etc?

I understand that if a crop in the Land of Israel does not have the trumot and maaserot properly separated, then the produce is tevel and cannot be eaten (until it is done). But that made me think of ...
6
votes
3answers
595 views

Is there a kashrus issue with paper towels?

Is there any concern about using paper towels with hot food? I know there are some who advise against using the first few and last few sheets during Pesach, due to the presence of starch-based glue ...
8
votes
2answers
382 views

How can people drink 7-11 Slurpees and soda?

There is no real Hechser on 7-11 Slurpees. How do people drink them? Is going on the Star-K's list okay? What about soda from the machine? I found that 7-11 switches the spouts sometimes. So even if ...
22
votes
5answers
701 views

How to respond to “but he does”

I mentioned to my coworker that I can't eat Domino's pizza, not even without meat, as it's not kosher. He pointed out in response that a fellow coworker of ours, whom I'll call Josh, and who is ...
11
votes
3answers
468 views

Is Okapi meat Kosher?

Is the Okapi a kosher animal? According to its Wikipedia page, it is most closely related to the giraffe, which everyone seems to agree is kosher. A quick Google search tells me that it chews its cud. ...
5
votes
4answers
217 views

Unsupervised meat and closed restaurants/butchers

How does Basar SheNith'alem Min Ha'Ayin (meat that has disappeared from view) apply vis a vis restaurants/delis/supermarkets/butchers that have closed for the night/weekend/holiday? I was just ...
3
votes
1answer
129 views

Seared Sushi Bishul Yisroel

Certain Sushi require the searing of the fish on the outside. Does this process require a Jew light the torch used to do the searing or is it not required? I have seen that some stores do and some do ...
9
votes
1answer
386 views

Knife sharpening - can it be done anywhere?

Can you take a Challa knife to any knife sharpener or would you have to Kasher it after it is sharpened? Would there be a difference if it is a meat or cheese knife?
1
vote
1answer
381 views

Is Japanese whisky kosher?

Here's an interesting article about whisky produced in Japan. Have any of the Kashrut authorities said anything about whether such whisky requires supervision? Do any such whiskies have supervision? ...
14
votes
1answer
450 views

What is the meaning of psak?

I have asked many people this question, and not yet got a comprehensive answer: What is psak? Like, let's say I have a certain piece of food of uncertain status. If I ask my 6 year old kid if it's ...