Questions tagged [kashrut-kosher]

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

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2answers
64 views

Anomalous directive and obvious condition in Parashat Re’eh

Within Perek 14, passukim 3-21, discusses the dietary prohibitions and permissions. My first inquiry is the anomaly particularly found in Passuk 11. ״כל ציפור טהורה תאכלו״- “Every clean bird, you may ...
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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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1answer
1k views

Instant Pot Kosher Rules

I've been considering getting my Orthodox Jewish friend who's learning to cook an Instant Pot as a surprise gift, but I'm not myself Jewish, so I'm a little lost here. If I want my friend to be able ...
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Saying bracha on dairy product before 6 hours have run? [duplicate]

Is there an accepted practice on what you are supposed to do if you thought 6 hours had run and say a bracha on a glass of milk but then you realize right before drinking it that it has not been 6 ...
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4answers
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According to Ibn Ezra should we not follow all the commandments?

In a question I asked (“Health benefits for eating kosher”), I wrote that ibn Ezra said that all the mitzvot have to have a rational explanation for them and if a single commandment went against ...
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1answer
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Health benefits for eating kosher [duplicate]

What are some health benefits for a kosher diet? The Rambam and ibn Ezra said that all the mitzvahs has to have a rational explanation for them. Ibn Ezra said that if a single commandment went against ...
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4answers
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Why is manna kosher?

We seem to not know what manna is, yet how do we determine it is kosher? I suppose this is the case because G-d deemed it so, but what do our sources say?
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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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Is a signature on a stapled bag with the restaurant’s bill considered enough of a seal for meat? [closed]

If one were to order delivery and the bag were stapled with the restaurant’s official receipt stapled to the bag and there was also a signature (albeit somewhat illegible) along the opening of the bag,...
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Why is Bee Honey Kosher? [duplicate]

Honey is formed when a bee mixes enzymes in its own body with nectar from flowers to form honey. Since honey is thus a byproduct of a non-kosher animal, how could it be Kosher while for example, camel ...
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1answer
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Gifting a kosher product one wouldn't eat or drink

Can a Jew give his Jewish friend a product which is kosher m'ikar hadin if the person giving it would not eat or drink it himself? The product could be e.g., kosher meat which is not glatt, scotch ...
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Is a hashgacha required for freshly squeezed orange juice?

Does freshly squeezed orange juice require a hashgacha? (ex: the freshly squeezed orange juice at Whole Foods)
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1answer
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Under what conditions is baking powder kosher [closed]

I'm a Jew from Iran. I want to know if baking powder is kosher without any certificate since they don't exist in Iran. Generally baking powder include TARTARIC ACID.
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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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Hard Boiled Eggs: does meat or dairy flavor penetrate shell? [duplicate]

I tried searching this but got a lot of results about cooking three eggs in one pot checking for blood spots at cetera. Suppose that you hard boil some eggs in a pot that is normally used to cook ...
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In modern Judaism, do they still make Menorah Stamps for the purpose of Marking Kosher Bread?

I just found this article, and I thought it was cool: https://www.livescience.com/17821-kosher-bread-stamp-discovered.html. The link says that during the Byzantine Era in Horbat Uza, Jewish bakers of ...
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2answers
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Does the prohibition of Gid Hanashe apply to human flesh?

Regardless of how one holds re: "Is human flesh a kosher food?" (ie if Yes= legitimate question, if No= additional issur)- Would the prohibition of Gid Hanashe apply to human flesh?
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1answer
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Does double wrapping food work for non-kosher food?

I have read several articles stating that one may double wrap food and place it into a non-kosher oven. I haven't read anything regarding the "opposite situation". Lets say one has verified that an ...
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2answers
380 views

Matcha Tea Inquiry

Does ground matcha need a hechsher? I know certain items, such as tea, when they are only one ingredient do not require a hechsher. Is ground matcha included in this?
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Can a genetically modified pig be kosher, if gestated in a kosher animal? [duplicate]

This answer says that a pig that was genetically modified to chew it's cud would not be kosher if gestated in a pig. For clarification, would it be kosher if it was gestated in a cow or other kosher ...
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1answer
799 views

Does anybody recognize this kashrus symbol? Rectangle K US

As the title says, does anybody know this kosher symbol? It looks like a large K with the letters U and S on top and bottom of it, inside of a rectangle. The product brand is Super Cakes, subsidiary ...
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1answer
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Milk & Meat Tradition

At what point in Jewish history did waiting 6 hours between milk and meat become the uniform approach in most communities (or in some places 1 hour or 3 hours)? Prior to communities adopting uniform ...
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Reverse Osmosis Water machine -- possible kosher issues?

There’s a machine at a local store near me that has a reverse osmosis water machine. I don't think there is a hecsher on the machine, but it's just water. Is there any possible kosher issues with it, ...
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1answer
645 views

Can Pao de Queijo, and similar foods, be kosher for Passover?

We're planning an "alternative" Passover, and are looking into some nontraditional foods that could be kosher for Passover. One that came up in discussion was Pao de Queijo, or Brazillan cheese ...
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1answer
777 views

During Temple times, who can butcher a kosher animal?

During the Temple Times, for the purpose of consumption, can any Jew butcher a kosher animal or must the animal be butchered by a Cohen or a Levi? I would appreciate a rabbinical source. I just ...
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What's the halachik classification as to why Dolphins aren't kosher? [duplicate]

What's the halachik classification as to why Dolphins aren't kosher? Is it because: Dolphins are like a fish they live in the ocean and thus the Torah considers them a fish and they don't have fins ...
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1answer
163 views

Frequency of inspection at vegan restaurants

Does a vegan restaurant require a permanent mashgiach on the premises to be certified kosher? For large factories that get a hechsher, supervision is limited to sporadic surprise inspections. (No ...
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1answer
82 views

Drop-shipping Non Kosher Food Products?

I own a drop-shipping business where I sell both food and non food products. As a drop shipper I do not keep the products I sell in stock. Instead, when I sell a product I purchase the item from a ...
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1answer
143 views

If a Jew was in a dire situation and had to eat the flesh of a pig, would they be required to kill the pig through Shechita?

This question is with regards to the limits of Pikuach Nefesh in a life or death scenario. Jewish law states that we have the ability to break the rules during situations where lives are in the ...
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5answers
436 views

Why is there a prohibition of gevinat aku"m?

I vaguely recall that Talmud Avodah Zarah mentions a prohibition of eating gevinat akum - cheese manufactured by an idol worshipper (as I understand this definition.) If there already was a ...
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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 ...
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1answer
402 views

Why might frozen potatoes require a hechsher?

The CRC says frozen potatoes require a hechsher (even though many frozen veggies do not). The Scroll K says frozen potatoes do not require a hechsher. Why might frozen potatoes require a hechsher?
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Does swallowing a whole creature fall under Evar Min Hachai?

Following the deleted question: "swallowing-permitted-species-alive", If one swallows a small fish or a bird or a Kosher grasshopper whole and alive, does he transgress Evar Min Hachai? If yes how ...
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1answer
355 views

May one purchase smoothies anywhere?

What do sources say about purchasing smoothies at places with no kosher certification? Would this be allowed?
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1answer
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Why is a Shechitah Knife termed a Chalaf?

In the Diaspora the Shechitah knife is termed "Chalef". What is the origin of this word? When was this word first used and where was this first first used?
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1answer
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For a person who doesn't eat dairy are there any halachic or health issues with using a meaty pot to cook all food and drink?

If someone never eats dairy (and won't be sharing with people who do), is there any halachic problem with using a meaty pot to cook all their food? Would the same apply to someone who eats meat, but ...
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1answer
173 views

Does boiling lettuce remove insects?

If one were to submerge lettuce in a pot of boiling water, cover the pot with a lid, let the lettuce boil for a minute and then discard the water; would doing so remove all the bugs?
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1answer
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Why only "Basar" Shenitaleim?

The concern of basar shenitaleim is that, somehow, kosher meat, unguarded and not recognizable, could be replaced with non-kosher meat. However, chicken, fish, milk and cheeses, and even vegetables ...
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3answers
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What's worse: eating a cheeseburger or eating pork?

Both eating a non-kosher cheeseburger and pork are assur, but suppose one is stuck on a desert island and has only these two options (the bun has already been eaten). What should one do? Is eating ...
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1answer
191 views

Checking strawberries with a magnifying glass

Most resources mention some type of process of rinsing with detergent etc. Can I just use a magnifying glass in order to see a potential bug? Also, why do the resources say to use soap or detergent.....
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2answers
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bracha on unflavoured seltzer if one's not thirsty

It's well known that a bracha isn't made on plain, unflavoured water if one isn't [that] thirsty, the question is: what about plain seltzer (e.g. refreshe from Vons)? Is the addition of the bubbley ...
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2answers
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Halachic difference between a medicine and a supplement?

Dietary supplements are a huge industry right now. Many people are taking a variety of vitamins, nutrients, and herbs in the same way they would take a prescription from a doctor. The problem with ...
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2answers
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Can Jews buy commercial challah at Whole Foods?

I know Whole Foods supermarkets have challah bread. I am not Jewish. But I once bought challah bread at Whole Foods and ate the whole bread in one sitting. It tasted like . . . bread. I am aware that ...
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Can open kosher condiments (e.g., ketchup) found in a rented apartment be used?

Let's say you rent an apartment and find open kosher condiments like ketchup in the fridge, can they be used?
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1answer
512 views

Is fruit sold in bulk at the store kosher?

At some supermarkets / stores, there is a "bulk fruit" section. I'm not talking about selecting fresh fruit off of the shelf or "fruit island" as is seen in some stores, like where ...
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269 views

Are crayons allowed?

If a non-toxic (but also non-food) wax crayon is known/suspected to contain both meat (e.g. stearic acid; see e.g. here) and milk (e.g. dairy-derived palmitic acid), may one use it or does it qualify ...
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Non-toxic crayon bliyoth

Would a non-toxic, non-food substance, such as crayons, intentionally melted in a pan render it unkosher? Does it matter if the crayons are known/suspected to contain both milk and meat (e.g. tallow/...
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1answer
561 views

Why are shellfish not kosher? [closed]

I have tried to read up and understand why shell fish aren't kosher, but the reasoning for scales/fins seems to be able to apply to shellfish as well. Is there any logical explanation?
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Is a convert considered a real Jew if not keeping kosher? [duplicate]

If a person converts to Judaism is he/she considered a real Jew if he/she doesn’t keep kosher? I’m concerned because my mother converted properly and in accordance with Jewish law, but she never ...
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1answer
74 views

Eating treif b'shogeg [duplicate]

If I ate a hamburger that I thought was kosher and after I finished it I found out it was not kosher, where does that leave me halachikly speaking. I know in Mishnah Torah it says (Blessings 1:19) ...

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