Questions tagged [kashrut-kosher]

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

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1answer
342 views

The stolen maple syrup and kashrus

Does anyone know if there is going to be a kashrus problem with maple syrup next year? A rather large amount of maple syrup was stolen last year. The thieves did not keep it in the original casks, ...
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213 views

If the Dodo bird had a tradition of being kosher & was resurrected, would it be OK to eat again?

Came across an article titled "Could scientists resurrect the dodo bird?" and it made me wonder: suppose there was a mesorah that the Dodo bird was kosher before it went extinct in 1681. If we in ...
7
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1answer
366 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 ...
7
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1answer
313 views

What defines a “בהמה” (also “חיה”) for the application of kosher-animal indicators?

As discussed in *Asher Bamayim* (אשר במים) in kashrus halacha, *Tzomeach* (צוֹמֵחַ) in kashrus halacha, and *Of* (עוֹף) in kashrus halacha, there are different rules used to determine the kashrus ...
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Informing someone that the food they are eating is permissible only b'deved(after the fact)

Does one need to inform someone that the food they are about to eat is permissible b'deved(after the fact)? Example 1: Some milk fell into the chulent and the Rabbi employed batel b'shishim and now ...
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Graven Image Question

Can someone give me sources from Tanakh and Halakhah on why it is permissible for a Jewish [certified kosher] bakery to make images from Christianity and their winter holiday? And if it is permissible,...
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Can you eat foods during Passover, if you already opened and ate from the package before Passover?

Let's say that a person opens a jar of pickles that is kosher for Passover, and eats from it during the week before Passover starts. Can the jar still be used during Passover?
5
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467 views

May one order food from Amazon Prime after Pesach?

May one order chametz from a publically-traded company (Amazon) which may have had food pass through any number of distributers on the way? The service in question is Amazon Prime Pantry.
5
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108 views

Pouring honey into a hot beverage

Can pouring honey into a hot beverage, such as tea, create a Kashruth concern? In particular, if you pour honey into hot tea with milk, can you later use the same bottle of honey to add honey to a ...
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243 views

Opened “please-take!” food items in a non-Jewish workplace

Is it alright to consume unsupervised food items at work that are open and available to anyone, assuming the items were initially known to be Kosher1 and there's no evidence of tampering? Items that ...
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Why are we allowed to eat flour?

The Torah explicitly says that we may not eat blood because the blood is an essential element in effecting Kaparah (as explained in Vayikra 17:11 among other places): כִּי נֶפֶשׁ הַבָּשָׂר בַּדָּם ...
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Why does steam impart dairy or meat status onto a cover?

Steam is a separate category as aroma in hilchot Kashrus. The former, if hot, contacts a pot cover, that cover would take on the dairy or meat status of the food below it. However, when water is ...
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84 views

Are there ways of reheating non-kosher food in a kosher oven

Are there ways of reheating non-kosher food in a kosher oven without rendering the oven non-kosher?
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38 views

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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247 views

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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28 views

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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forgetting about chometz in someone else's property

If one has property in non Jew's house for storage that is chometz and one pesach the owner forgot about this chometz. The nature of the storage being unpaid for and not even set aside in a specific ...
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134 views

History of separating milk and meat dishes

What are the origins of having separate milk and meat dishes? It seems to be a generally accepted practice, and there are many Acharonim that talk about it. Where was the idea first introduced and how ...
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123 views

Does food need to be double-wrapped for the fridge?

I am familiar with the idea ( What's the halachic advantage of double (or triple) wrapping food? ) that double-wrapping is necessary for a halachic separation in certain kashrus contexts. However, ...
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189 views

Would a non-kosher Earth animal born in space be kosher?

Inspired by this question. The question linked quotes Sanhedrin 59b in saying that if an animal came down from heaven (whether it had kosher signs or not) it would be kosher. If I were, however, to ...
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The opinion that microwaves don't need to be kashered

So I remember hearing this opinion that followed like this: "Microwaves do not need to be kashered because the means of cooking in a microwave are different than those spoken about in the Gemara." ...
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59 views

*Tzomeach* (צוֹמֵחַ) in kashrus halacha

To find the kashrus status of an organism, we first need to correctly classify it as tzomeach, animal, bird, or fish, as each group has its own distinct requirements. E.g., animals need to chew cud ...
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373 views

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 (...
4
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1answer
313 views

If I left my kitchen under the control of someone who is a Gentile or not Shomer Shabbos, is it still kosher?

If I left my kitchen (or set of kosher dishes, etc.) with someone who is a) not Jewish or b) Jewish but not shomer Shabbos--in such a way that they could access it and hypothetically do anything they ...
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43 views

Does the mitzvah to eat shmita produce apply to heter mechira?

i saw an article a few years back, I believe written based on a shiur by Rabbi Shlomo Aviner, promoting heter mechira. Towards the end of the article, he was advocating why heter mechira was ...
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109 views

The Secret of Nature Valley

What, if any, might be legitimate halachik concerns with uncertified Nature Valley granola bars? Their "Crunchy" line of products seems to be certified as OU pareve(?) However, many of their other ...
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100 views

Case Study: Kashrut of Tapioca Starch

I have heard different answers from representatives of the cRc and the Star-K regarding the kashrut of un-certified tapioca starch. While both agree that it requires a hechsher for Pessach, the Star-K ...
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99 views

Is ta'am (flavor) physical or metaphysical?

The Talmud and Geonim seem to speak about ta'am and it's ability to transfer as being a very physical process. The literature reads as if one would be able to taste the transfer of flavor from one ...
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317 views

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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514 views

Would leavened bread made from matzo meal be kosher for Passover?

Flour which is wet for 18 or more minutes is considered to be "leavened", and therefore chametz. However, though there's some disagreement, this restriction is generally not applied to matzo, or food ...
3
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1answer
1k views

Looking for hechshered plain kefir Kosher for Passover

Does anyone know of hechshered plain kefir gluten free no additives Kosher for Passover? Kefir is a fermented milk product (cow, goat or sheep milk) that tastes like a drinkable yogurt. Kefir ...
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143 views

Kosher birds in the Torah

Why is it that the Torah only mentions the non-kosher birds (24 of them), but doesnt mention their simanim, While by the kosher animals the Torah does mention simanim and which specific animals are ...
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71 views

Fitting for an animal to eat besides a dog

In many halachos about food (Kashrus, owning Chametz on Pesach, etc.), a standard for determining if something retains its status as food is if it is "fitting for a dog to eat." What about other ...
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204 views

Why do soft cheeses made by gentiles, like cottage cheese, have a hechsher, while others like mozzarella not have a hechsher?

I noticed Rav Abadi says all soft cheeses made by gentiles are kosher. Do other poskim also hold like him? If yes please post who. Both cottage cheese and mozzarella require rennet, so I'm not ...
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62 views

Length of time for waiting for hard cheese proportionate to the length of time it was aged

In a Halachic pamphlet I saw before Shavuos this year, it mentioned an opinion that one must wait after eating hard cheese one hour for every month it is aged (so if it was aged three months, three ...
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68 views

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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157 views

Why did they stop packing the gizard, neck and liver inside the chicken cavity?

Why did they stop packing the gizard, neck and liver inside the chicken cavity? I think this practice stopped about 25 years ago. When I was a novice cook, I didn't know that I had to first take out ...
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178 views

Can Food Remnants make you fleishig/milchig

ב"ה Can food remnants, like stains, make you fleishig/milchig? For example, if I had a steak and got it on my sleeve, then the next day wiped my mouth with that sleev,e can I become fleishig from ...
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164 views

Cloth and meat and milk

Does cloth retain meat and milk after it is washed? I was thinking that instead of ceramic or plastic plates, we could eat off of woven disks.
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135 views

Maris Ayin and bags from restaurants

Similar to this question, suppose there is a chain of restaurants that is mostly non-Kosher, but there happens to be one kosher franchise in the chain. The example I am thinking of is that there is ...
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0answers
264 views

Eating treif under hashgacha

What happens if someone eats at a restaurant with a kosher certification (hashgacha) but is served, and unknowingly eat non-kosher? What are the spiritual and halachic ramifications to all parties ...
3
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1answer
261 views

Poskim who hold chalita is necessary?

Are there any famous rishonim or achronim (outside of Yemen & besides the Rambam) who hold doing chalita to meat is necessary?
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Aged tequila on Pessach

I've noticed that the lists of aged (reposado and añejo) tequila approved for Pessach went from a fairly sizeable number in 5780 down to two in 5781. Someone I know, who is an executive in a ...
2
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1answer
155 views

Kashrut Status of Certain Oral Tobacco Products During Pesach

NOTE: I plan to pose this question to a qualified Rav. But first I am trying to think through the relevant issues to get a sense of how one might pasken this. My question is regarding whether snus ...
2
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0answers
59 views

Why does my liquid toothpaste's Kosher for Pesach sign have an expiration date?‎

I have an Israeli brand of liquid tooth paste from a company called Tayadent,‎ which says on it כשר לפסח תש"פ -‎ why would it matter what year it is for the hecsher?‎ Thanks
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96 views

Is nonkosher taste OK?

If kosher food happens to sit in the presence of nonkosher food and thereby acquires some of its flavor, is it still kosher? (In general, it is not possible to completely shield food from surrounding ...
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0answers
134 views

What to do in face of total ban on kosher meat?

If a country bans shechitah and also bans the importation of kosher meat, do the Jews of that country have to go vegetarian according to dina d'malchuta dina?
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80 views

Mechanics of making matza on Pesach

When making matzah at home during the Pesach week, is it correct that one needs to ensure that not only is the matzah itself completed in 18 minutes, but also that all the utensils and bowls are ...
2
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77 views

Hot pareve pot on fleishig (or milkhig surface)

If one's intention is to keep food pareve, is it permissible to put a hot pot (above yad soledes), full of pareve liquid onto a meat or dairy surface? Does the pareve liquid become fleishig/milkhig? ...
2
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0answers
106 views

Un-kosher pan in a kosher oven

If someone has a perfectly kosher oven which is designated only for dairy and parve meals. He accidentaly put there a non-kosher pan with some dairy food. What now, is his oven still kosher after that?...