Questions tagged [kashrut-kosher]

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

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If the whole vessel's volume counts in 1/60, why don't we wait?

Although this is a really basic quesiton, the topic is way beyond my education, so please excuse the lack of sources, background knowledge and proper terms, and please help me improve. I understand ...
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It is same species if offspring can have offspring (source)

I heard that if we do not have a messora on a certain bird but we do have one on a similar species then we can check by checking if their offspring can have offspring What is this idea based on? I ...
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Is Corelle Ware considered glass or ceramic

Theoretically if someone accidentally use my dairy dish for meat or vice versa and it's a Corelle Ware dish does he need to throw it out or can he consider it to be like glass?
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Do concepts of nat bar nat and batel beshishim apply to ovens?

In a prior post I asked about batel beshishim and nat bar nat (noten ta'am bar noten ta'am) as it applies to pots and utensils. Do these concepts apply to ovens? If yes why? If not, why? If ...
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Can a דבר חריף transfer בליעות into a כלי without heat?

An onion is cut into small pieces with a fleishig knife. Then the pieces of onion are chopped in a food processor that was recently used to proses dairy. The onion is obviously treif, but what is the ...
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Is Batel BeShishim relevant to issues regarding pots/pans/utensils?

I have searched a number or sources for this, and have asked people involved in kashrus, and can't quite get a straight answer. This is a series of compound questions: If a meat pot is completely ...
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Is Hematogen non-kosher?

Hematogen is non-kosher ("blood"), right? Hematogen is done (indirectly) from blood of an animal. Does it imply that it is non-kosher?
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Is K-כשר kosher?

What is the kashrut authority behind the K-כשר symbol that is now used on Kirkland Signature milk sold at Costco?:
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What to ask a kashrut organization

My question is what sorts of questions should a consumer ask a kashrut organization to determine if he should rely on it? An example: Reuven finds some hard candy that is certified by Kosher-Z. The ...
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Why may one not make a business out of hunting wild animals?

Sheviis 7:4: צָדֵי חַיָּה עוֹפוֹת וְדָגִים שֶׁנִּזְדַּמְּנוּ לָהֶם מִינִים טְמֵאִין, מֻתָּרִים לְמָכְרָן. רַבִּי יְהוּדָה אוֹמֵר, אַף מִי שֶׁנִּתְמַנָּה לוֹ לְפִי דַרְכּוֹ, לוֹקֵחַ וּמוֹכֵר, ...
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Can a Jew own a non-kosher butchery?

Can a Jew own a non-kosher-food butchery that sells pig? And if he can, can he sell to non-practicing Jews?
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Does one need to worry about shmitah on Arab produce in Israel?

I often go to the Arab Market in Jerusalem's Old City to buy nuts and fruit because the quality is good and it's the cheapest I've found. I haven't seen a halakhic issue with their roasted nuts since ...
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Is an animal raised on basar bechalav feed permissible

Veal can be raised on formula that contains basar bechalav (a meat and milk mixture) which is asur behana'ah (forbidden to derive benefit from). Would this isur cause the meat from animals exclusively ...
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Kosher wines and agricultural laws of the Torah

I write an article about kosher wines and ask for help. Tell me, in the production of grapes, the agricultural laws of the Torah operate only on Israeli soil? If in another country the wine producer ...
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מבטל איסור בשוגג

Milk fell into a pot of meat. Before you realized that the milk fell in, you added water to the pot. Then you found out that milk fell into the pot before you added water. Without the added water you ...
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Are wild figs kosher?

Here in Eretz Israel, many figs have wasp larvae on them. Are wild figs kosher? Or kosher if you inspect them? I find it hard to believe that one of the shivat haminim is treif.
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Non Jews and human flesh

There is a prohibition against a Jew eating human flesh. There is a dispute if it is a biblical or rabbinic prohibition (see here, here and here). Either way, I'm wondering if a non jew has the same ...
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Source that tzaar baalei chayyim only applies to kosher animals?

I remember learning that tzaar baalei chayyim only applies to kosher animals and being very surprised and disappointed, but I don't remember the source at all. Does anyone know where this idea comes ...
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Why Are Bugs Not Batul Bshishim?

Particularly in the case of tiny bugs on plants, fruits, and vegetables. Why are they not considered batul bshishim since they are obviously not there on purpose (or desirable) and they make up a tiny ...
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Can 'cruelty to animals' render an animal not kosher?

The problem of cruelty to animals is rife in the food production industry. This article brings the reasoning of two Rabbanim to forbid foie gras and veal on these grounds: Some of the greatest ...
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Do kashrut rules apply to a Washing laver?

Are there any halachot that apply the rules of kashrut to the cup I use to wash my hands before I eat? This answer says that one can use "any cup". This site says that a cup can be drunk from and the ...
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Chicken eating pork-only diet

Someone commented on this website: "An animal is allowed to eat non-kosher food and does not become non-kosher from doing so." Is this accurate edit: kosher fish often consume non-kosher creatures, ...
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Why can't we have challah in the oven with other food?

I am talking about halachic challah -- the portion taken for the offering. I was taught several times that these days, what to do with it is to burn it to a char in the oven. I also learned that this ...
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May one broker the sale non kosher restaurants?

one may not do business with foods that are forbidden to eat (shulchan aruch yore dea 117) However, if a person's business is not selling the treif item and will never comes to own any of the product ...
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Are single dried herbs assumed to be kosher?

Are single dried herbs assumed to be kosher without a hechsher? Quoted from the ou website regarding checking for bugs: https://oukosher.org/blog/consumer-kosher/summary-ou-insect-checking-policies/ "...
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Just the word “kosher” on a package

I have seen packages which just have the words "kosher, pareve" on them and no other hechsher can be found. Does that make it kosher, because the words is all the hechsher it needs? Additionally, who ...
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Toveling an item with Hashgacha

Many years ago, my parents bought me a jar of cider which had a hashgocha clearly visible on it. The cider came in a handled mug with a top (like this https://is.alicdn.com/img/pb/572/105/517/...
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Alcoholic beverage owned by a non religious jew over pesach?

There are many lists of kosher alcoholic beverages. When I walk into a random liqueur store, there is no way to know if any of the previous owners of the drinks were non religious jews. Being that ...
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For how long must a Jew keep Shabbat before he can be considered Shomer Shabbat?

Certain Kashrut issues require (or may require according to some opinions) that a Shomer Shabbat Jew (not just any Jew) supervise cooking. For example, see here, and here. How is the status of Shomer ...
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Do “triple washed” salad greens need to be inspected for bugs?

I've seen a few bags of salad greens marked "triple washed". I did a Google search and there seems to be some debate on whether it needs to be rewashed after you buy it. This article says If you'...
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Does Sour Beer Require Certification?

This is my first question ever on this forum, so here it goes! I am a big beer guy. My wife and I love trying different beers. IPAs are my favorite. My wife's favorite are 'sour beers'. A sour beer ...
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Can salami mold make dry-aged salami un-kosher?

I am making beef salami, using kosher meat, and I would like to know if the mold that is introduced to form on the outside can make it non-kosher. Background info Dry aged meats take advantage of a '...
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The Star-K Potato Test: How does it work?

I had seen on the Star-K website that one may determine if a microwave needs to be kashered by baking a potato in it and then placing one's hand on the roof of the microwave to determine if it's yad ...
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What are the potential halachic problems eating in a vegan restaurant without hashgacha? [duplicate]

Suppose for this scenario that the restaurant is very strictly vegan (and in a region where veganism is truly understood), and there is no wine present. All dishes that the restaurant uses are ...
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“Non-Kosher” wine vs. Other “non-kosher foods”

If I have a cup/plate/utensil and I put/use non-kosher meat in/with it, or make/place a forbidden mixture of milk and meat in it, I will have a problem with the future use of that cup (I know, the ...
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Salmons and eels touching in the fish shop, is the salmon still ok to purchase?

Often fish sellers line up longer fish together on the ice, usually the fish don't overlap (to preserve the individual tastes of the fish). If the salmons and the eels are touching is the salmon still ...
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Grape Molasses - Kosher Without Hashgachah?

Per my CRC Kosher app, "molasses" is kosher without a hashgachah needed. What about grape molasses though? Per https://en.wikipedia.org/wiki/Petimezi, grape must is used to make it, so I'd assume it ...
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Using pan and utensils

Can a pan used for frying eggs, also be used to fry sardines? Does this meet kashrut kosher laws?
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Were the Israelites' pots really ben yoman when they received the Torah?

In the Mishnah Brurah's explanation for the custom of eating dairy foods on Shavuot (Orach Chaim 494:12), he mentions that the Israelites' pots had been used for non-kosher food within the past 24 ...
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Explanation of מיגו דהאי לאו דאיסורא הוא דהאי נמי לאו איסורא הוא

The Shulchan Aruch in Y.D. 110:7 writes (based on Zevachim 74a and 77b, as explained by Rashi): דָּבָר שֶׁאֵינוֹ בָּטֵל מֵחֲמַת חֲשִׁיבוּתוֹ, כְּגוֹן בַּעֲלֵי חַיִּים וּבְרִיָּה, וַחֲתִיכָה ...
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Hershey Park Kettle Corn kosher?

After a camp trip to Hershey Park, there was some confusion as to the kashrus of Kettle Corn Popcorn - it is apparently certified under the "Buggy K" by Rabbi Shaya Sackett, Rav of Degel Israel, an ...
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Ashkenazim drinking from the glass in non-kosher restaurants

Everyone I know does this, including the strictest. That is, if ordering a cold drink at a non-kosher restaurant or bar, they will have it in the glass the institution provides, not ask for it in a ...
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Precut fruit is kosher but not lemon?

I'm confused by what I'm reading here: Fresh fruits and vegetables grown in chutz la’aretz are kosher whether bought whole or cut. Therefore, you may purchase a fresh fruit salad in any ...
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Is saying a bracha over non-Kosher food a sin or does it simply not count as a Mitzvot?

This question may sound strange but it came up in a discussion with someone. They're a Baal Teshuva in progress and are attempting to adjust to the lifestyle. He's getting there but he's doing so in ...
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“seals” for fish

In Shulchan Aruch Yoreh Deah Siman 118 Sif 1 it says that wine, meat, and pieces fish (where the signs of the fish are no longer recognizable) that are sent using a non-Jew needs to have "shtei ...
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Kosher New World Animals

When Jews first set foot on new-to-them continents (AKA: North America, South America, and Australia), they would have found many animals that were previously unknown to them. Some of these new ...
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Are hydroponic produce typically checked for bugs?

I know that many soil-based fruits and veggies are checked for bugs. I assume that it may be primarily due to bugs that crawl on the ground or on the tree that causes this problem. Is hydroponic ...
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Can food or drinks be Kosher without an Hechsher? [duplicate]

Say i pick up a drink in a gas station and i know that all the ingredients are Kosher, can i drink it? Or do i have to be Concerned for Beliyos from the non-Kosher machinery (Perhaps they get batel ...
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Did David held kashrut when invited to a meal?

In relation to the following question If Jews don't eat cheeseburgers, why did Abraham serve a calf with milk? I wondered how one should interpret the verse of 2 Samuel 17:29 which states that David ...
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Why would the blue-footed booby be treif?

Why would the blue-footed booby be treif? I can't see anything that would make it not kosher, and the Torah does not mention it (obviously) in the list of forbidden birds in Vayikra 11:13-19.