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

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How big can insects be before falling into kashrut halacha?

So we typically clean vegetable matter of bugs because, while it isn't an aveirah to eat a bug part if it's smaller than a(n) (halachic) olive, it is still prohibited to eat any non-kosher living ...
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97 views

Is there a problem with “Mar'it ayin” by attending a company picnic?

Theoretical: Let's say that a company plans a picnic in a "semi-park" area. I.e. - it is a tree-lined public thoroughfare that many people including Jews, walk through. (I added this fact b/c I have ...
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119 views

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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116 views

Are separate glasses required for milk and meat?

It seems to me that there are some interesting things which are done in virtually every kosher Jewish home that may have no basis in halachah. I think that having separate glasses for meat and dairy ...
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84 views

The levels in kashrut

If a piece of a biblically forbidden food (such as a piece of pork), falls into a bowl of meat. We all know the rule, it's batul bshishim. How about a piece of food which is only rabbinically ...
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366 views

Can a hot water urn that is used throughout the year be used for Passover?

Can a hot water urn that is used throughout the year be used for Passover? If not, what is the reasoning why, if it is only used for water (i.e., not coffee). Would the same reasoning hold for a ...
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166 views

Is vodka made from whey kosher?

There is a new vodka which is made from a whey base. I was wondering what are the halachic considerations,chalav akum is one that comes to mind,as well as basar bchalav?
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What do we do with Chazaka's that don't seem to hold?

Inspired by this comment, there are Chazaka's (presumptions) and principles of נאמנות (trustworthiness) in Halacha that no longer hold in our practical experience. One example is עד אחד נאמנן ...
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147 views

When is a grafted tree Kosher?

I understand that fruit isn't kosher if it is picked in the first 3 years of growth. However, what about grafting trees? If two branches come from trees that each more that 3 years old, but the ...
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85 views

Efshar LeSoḥato Asur - because or even though?

I'm trying to comprehend the concept of "אפשר לסוחטו אסור" (roughly: "if it's possible to extract it - something prohibited from something otherwise permitted - it is prohibited"). As far as I can ...
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132 views

Hand Cream Glycerin

Is there a problem according to any opinions of using creams and the like because of their treif animal content in the Glycerin of Sicha Kshtiyah:"annointing is like drinking"?
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56 views

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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140 views

Can vegetables/fruit be uncheckable?

There are differences in 'bug checking strategies' for different countries due to differences in bugs, pesticides, harvesting and packaging techniques (etc.). In Israel, I have recently encountered ...
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99 views

Must a non-Jew who eats trief or a nevaila immerse himself?

Vayikra 17:15: And any person, whether a native or a stranger (gair), who eats carrion (nevaila) or what was torn (trief), shall immerse his garments and immerse himself in the waters, and shall ...
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240 views

Status of plastic drip coffee filter cone

What would be the status of the coffee maker cone shown below if it were to be used to make a cup of coffee in a dairy mug? Would it become dairy? Would it remain parve? Here's how it works. It ...
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108 views

Dried insects - permissible?

I just read the website of a Kashrut inspection agency with which I'm familiar, but only insofar as I have seen it many times and tried, but failed, to find any information about the agency's ...
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43 views

Is Ever Min HaHai a Nevelah?

Does Ever Min HaHai have a Din of Nevelah? Does it render food cooked with it Nevelah? If it's meat from a Behemah Tehorah would it be Asur to cook with milk?
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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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Does fish need to be inspected for non kosher fish, flies and worms?

I'm not sure if commercial fish is inspected in any way. I know that most commercial fish is caught in nets, so I don't think that bait is used. When individuals go fishing, they use worms, flies, or ...
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Sephardic Halakhoth for Kashering a Sink

Moving into a new place, the previous tenant was not Jewish, and the sink is made from porcelain. i know that Hacham Ovadia Yosef Zal allowed Sephardim to kasher a porcelain sink for Pesach by using ...
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36 views

Contemporary approaches to kashrut of dates

What are contemporary approaches regarding dealing with bug infestation of dates? Do Kashrut agencies (e.g. the Orthodox Union) regularly inspect crops to determine infestation levels? And if so, what ...
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59 views

Kashrut of Oven Mitts [duplicate]

Since kashrut often requires one to have separate sets of cooking utensils for dairy and meat, should one use separate dairy and meat oven mitts?
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What do I need to know to properly kasher utensils in boiling water? [duplicate]

If someone wants to kasher their utensils using a pot of boiling water, what do they need to know to do it correctly? Among other issues, consider: Are there issues with how long items need to be in ...
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34 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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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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65 views

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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110 views

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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70 views

Batel b'shisim on a large scale

Suppose someone is making a huge 50-gallon vat of cholent. Accidentally, an entire bag of milk breaks and spills into the cholent. There is more than 60x as much meat cholent as there is milk, so the ...
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Kosher Coconut Oil Packed in Non-Kosher facility [duplicate]

If the Coconut Oil is Kosher but is packed in non-Kosher facility, is it still kosher?
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Dairy hechsher but no dairy ingredients listed [duplicate]

Suppose that a food product has a dairy hechsher (say, OU-D) but does not have anything obviously dairy in the ingredients list, and does not have "contains dairy" or something similar written below ...
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33 views

Do Hashgachos endorse non-proximate halachic claims on label? [duplicate]

Sometimes I find products (under Hashgacha) with halachic information written on the wrapper (away from the hechsher). For example: Some products claim "Pas Yisrael", "Chalav Yisrael" or "Yashan". ...
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102 views

Rambam held of Timtum halev?

There is a famous story of the Rambam in the name of R' Chaim Brisker: "When the Rambam visited Yemen, he met a certain gaon of the geonim of the time. And after the Rambam returned home, this ...
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Fruits and Vegetables Prepared With Treif Utensils

Can I eat e.g. a watermelon cut with a treif (non-kosher) knife on a treif cutting board and stored in a treif container?
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Dead Fly on Hot Oily Pan [duplicate]

Possible Duplicate: Does a pot that cooked food with a bug in it need to be kashered afterward? Fly lands on hot oily pan and duly dies. Kashrut implications? (Of the pan, not the fly :p )
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Resources for the Kulot (leniencies) that the Rabbanut in Israel Takes [duplicate]

Possible Duplicate: Mehadrin vs. Non Mehadrin I am preparing a chabura on the leniencies that the Rabbanut in Israel takes. With the understanding that the various Rabbanut branches around ...
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65 views

What can you look for to ensure that a vegan restaurant is Kosher? [duplicate]

Vegan restaurants claim to serve strictly vegetable and plant-based meals. They would seem to be automatically Kosher, but I've read and heard that there could be other Kosher issues. What are ...
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Waking up fleishig [duplicate]

I once heard that you cannot wake up in the morning being fleishig, meaning if you go to sleep for the night, even if you sleep less than 6 hours (or whatever time you wait), you are pareve and can ...
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276 views

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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Kashrus of Pepperidge Farm Goldfish

Ok, this is a little lighthearted but so be it. I am curious why I can't find the answer to this online. I was once told by someone involved with a nationwide kashrus organization that Pepperidge ...
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106 views

Can one rely on halal combined with vegetarian labels?

i understand that halal can not be trusted for meat, but what about items that are certified halal and certified vegetarian? There are many vegetarian curry pastes and other spice pastes that can be ...
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194 views

Keeping Kosher Jewish/gentile marriage

A young couple is in love and intends to marry. She is Jewish and he is Christian. Each respects the other's religious beliefs and neither intends to convert. She keeps kosher. OTOH, he eats ...
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3answers
144 views

The Manna and non kosher taste

The Gemarah in Yoma 75a explains that the manna imparted all flavors except five flavors. Based on this idea, can one have in mind the taste of pork while eating the manna, or do we say that anything ...
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195 views

Chap stick Flavored Kashrut [duplicate]

Possible Duplicate: kashrus of mouthwash, toothpaste, lip balm Whats the Kashruse etatus os the flavored Chapsticks are they allowed or not?
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57 views

Kashrus Advising agencies

There seems to be a lot of kashrut organizations that deal with their respective hashgachas. But rarely do they advise about other organizations or products that arent certified. Are there any ...
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182 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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124 views

Kashrut of Bread [duplicate]

Assuming bread was prepared and baked by a Gentile using only kosher ingredients (e.g. kosher flour, water and kosher yeast) and only kosher equipment, what conditions would render such bread fit for ...
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119 views

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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346 views

Carnation Instant Breakfast substitute

Is there any non-dairy (or chalav yisrael) substitute for Carnation Instant Breakfast?
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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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243 views

Keeping Kosher and Leather

I would like to ask a question regarding something I am quite confused by. Why is it okay to wear leather from an animal slaughtered not in a kosher fashion yet you cannot eat that animal's meat? To ...