Questions about the Jewish requirement to not cook, eat, or benefit from mixtures of meat and dairy.

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66 views

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 ...
0
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1answer
53 views

Does jam have the halacha of duchka d'sakina?

The Chochmas Adom in 49:9 holds that all fruit have the halacha of duchka d'sakina, and that if you cut a fruit with a meat knife which was not definitively clean, you need to scrape off the outer ...
3
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1answer
304 views

Are separate condiments/containers needed for meat and dairy?

When eating a dairy meal and you use the salt/pepper shakers then meat dishes are brought out do you have to switch the condiment containers too? Likewise when cooking with dairy and using your spice ...
2
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1answer
33 views

hot pot and trief

I heard that placing hot pots onto counters or refrigerator shelves could treif the pot (although not its contents) if the counter or shelf is dirty with an opposite type of foodstuff. Is there a ...
4
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1answer
84 views

Waiting six hours when chicken became meat

Poultry was once not considered fleishig. If someone had eaten chicken immediately before the rabbis decreed that poultry was fleishig, would he have had to wait his customary number of hours before ...
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1answer
72 views

Meskheth Hullin 104b - Can the Mishnah Really Be [Mis]Understood That Way?

First, some background: In b.Hullin 104b - at the very beginning of the Gemara in pereq "Kol HaBasar" - there is a very strange and almost unintelligible section of argumentation which tries to prove ...
3
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3answers
692 views

Am I allowed to enjoy the smell emanating from a non-kosher place that cooks using milk and meat mixture?

I know that one cannot gain "Hana'ah" from meat and dairy mixtures. I understood the term "hana'ah" to mean "pleasure" or "benefit". My neighbor makes wonderful-smelling Italian cooking. The smell ...
4
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1answer
96 views

Why don't kashrut agencies mark on certain cheeses that one must wait 6 hours?

While shopping for Shavu'ot, I noticed that the caterer had marked on their eggplant rollatini "made with 6-hour cheese". I was pleased that they did this, as I had never seen this marking, ...
3
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1answer
58 views

Why use the language of לֹא-תְבַשֵּׁל גְּדִי, בַּחֲלֵב אִמּוֹ

The concept of לֹא-תְבַשֵּׁל גְּדִי, בַּחֲלֵב אִמּוֹ is brought down three times in the Torah. The Gemarah learns from this that there are three prohibitions: 1) The prohibition against cooking milk ...
1
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1answer
92 views

Do all poskim hold libun can not be done to a bbq?

I would like to use my barbecue for dairy, I was told that some poskim hold you can kasher a bbq buy leaving it on high for a couple of minutes. Does anybody know Poskim who hold like this? In other ...
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2answers
88 views

RaMBa“M's ”Wondrous Point“ about cooking ”treif" meat from a Kosher animal with milk undermined by a simple Gemara?

Beitzah 12b seems to undermine RaMBa"M's Nekudah Niflaah that cooking and enjoying (not eating) Basar Tehorah Neveilah with milk is Mutar. Beitzah 12a-12b has R' Yohanan appalled at the suggestion ...
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1answer
78 views

Per Sepharadim, is Almond Breeze permissible immediately after meat?

Almond Breeze is described by its manufacturer (Blue Diamond) as being "dairy free [and] made on heated equipment also used for dairy products". The manufacturer also "uses stringent equipment ...
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0answers
46 views

Using same dish washer for meat and dairy?

Under what conditions can the same dish washer be used for washing both meat and dairy dishes?
5
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1answer
112 views

Does nullification mean something no longer exists, or just that it has no Halachic significance?

[For the record, (I believe) I know the answer, but I saw someone post the question, as stated in the subject, on social media, and I am drawing it to its logical conclusion here.] Say, for example, ...
2
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0answers
63 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 ...
0
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1answer
106 views

At what temperature is a food Boleya in the utensil

Say I have a pot that I used for beef soup. Then an hour later I forgot I used the pot for meat and I decide to make soup with cheese. I throw the cheese in it and put it on the fire. About 5 seconds ...
5
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3answers
78 views

Noachide Dietary Restrictions

Noachides are not commanded to keep Kosher but we do know the sixth commandment given us is "The prohibition of eating flesh taken from an animal while it is still alive" can someone clarify (Not give ...
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0answers
74 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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3answers
145 views

Why don't we use the same utensils for milk and meat if the food is cold

If I have designated utensils for cold foods such as salad, or cold salami and cheese. What is the problem of using the same utensils for both milk and meat, since there is no bliya because both are ...
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0answers
45 views

What is the halacha of changing dairy dishes to meat dishes?

I have a set of dairy dishes that have not been used for three years. I want to change them to meat dishes. Is this halachically permissible, and if so what procedure is required?
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0answers
55 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.
2
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1answer
64 views

Is beer a davar charif?

I recently brewed beer in a meat non-Ben-Yomo pot. Is beer considered a davar charif rendering my beer impermissible to be consumed with dairy? Would it depend on how much hops were used? Are only ...
8
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1answer
156 views

Animals Created By Sefer Yetzirah

The Malbim explains that someone created a calf using Sefer Yetzirah, and it could then be eaten with milk. What is it about the animals created from Sefer Yetzirah which make it permissible to eat ...
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1answer
139 views

Why 72-minutes for Dutch, Swedish, Finnish, and Northern European Jews?

I am a Swedish Jew and want to know why we wait specifically 72 minutes after eating meat/flaysh before eating miklhigs. A lot of people say it is an hour, but my understanding is that a one-hour ...
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2answers
205 views

Eating dairy after pareve on meat equipment?

If I eat hot pareve food that was made on meat equipment, is there a waiting period before I can eat dairy? I had always assumed so -- that the heat transfers the meatiness to the pareve food -- but ...
5
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1answer
148 views

Turn dairy ceramic pot into parve pot

Can a ceramic pot which I used for cooking milk, very rarely and a long time ago, be turned into a parve pot to boil water only? The pot is actually granitware, constructed of low-carbon steel with ...
5
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4answers
344 views

If Jews don't eat cheeseburgers, why did Abraham serve a calf with milk?

Genesis 18:8 (JPS): And he took curd, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat. Looks like Abraham and 3 ...
4
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0answers
79 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 ...
6
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4answers
152 views

Waiting Between Meat & Dairy According To The Geonim

It seems as though the Geonim - although disparate and diverse in their opinions on many issues - seem to be rather united on the understanding of the Gemara on the subject of waiting after meat ...
6
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6answers
168 views

Looking for a sefer to help prepare for smicha

I am currently learning hilchos taaroves and will soon be moving on to basar bechalav and melicha etc. in preparation for getting smicha. I have looked around and found countless (literally countless) ...
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0answers
35 views

Are separate stainless steel and aluminum dishes really required? [duplicate]

I can understand the need for separate cast iron dishes and raw pottery dishes for meat and dairy, but is stainless steel and aluminum really required according to halakha? Pottery (klei heres) is ...
2
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1answer
82 views

Where to store parve such as fish, in meat or dairy refrigerator?

Where to store parve such as fish: in meat or dairy refrigerator? Basically trying to figure out whether three refrigerators are needed in a kosher kitchen.
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1answer
79 views

Can you eat cheese with bread-that-was-cut-with-a-meat knife?

If you intentionally cut bread slices with a meat knife, can you then eat that slice of bread with dairy products?
1
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1answer
153 views

Pyrex prep bowls: meat and dairy?

Can Pyrex mixing bowls be used for both meat and dairy preparation? (Not at the same time obviously, but washed in between.) I'm not referring to the Pyrex baking pans which would be kli rishon and ...
2
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2answers
186 views

If we don't cook a calf in its mothers' milk, why can we use eggs with chicken?

The Torah says that one should not cook a calf in its mothers' milk. This is the basis for the prohibition of eating milk and meat together. If this is the case, why is it not also illegal to cook a ...
4
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1answer
302 views

Was chicken originally considered pareve? If so, when and why was this changed?

I heard that chicken was originally considered pareve in the Bible, because it is a type of fowl (i.e. like fish it is pareve, as it is not 'meat'), and that only later was it changed to be meat ...
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2answers
148 views

Allowed to help prepare / serve “milk and meat” meal in homeless shelter?

Imagine a case in which one is invited to volunteer with a group that is preparing and serving a meal at a homeless shelter. The group has decided on a menu that includes milk and meat together in ...
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1answer
79 views

How come delicatessen offer meat sandwiches AND cheesecakes as deserts?

How come delicatessen offer meat sandwiches AND cheesecakes as deserts? Were people mixing meat & dairy in eastern european communities ? Or were they not really part of traditional ashkenazi food ...
8
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2answers
842 views

If the label says O-U D, but the warning label for allery sufferers says “no dairy”, do we consider the product dairy or not?

I attended a fantastic lecture on kashrus and dairy products by Rabbi Zushe Yosef Blech, shlita, who was asked an interesting question: Can you eat Oreo cookies after a fleishig meal? It was pointed ...
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0answers
41 views

What is the kashrut status of synthetic/in vitro meat? [duplicate]

It was reported in the news today (at least in the UK) that another step forward has been made towards the creation of "synthetic meat". From BBC News: The world's first lab-grown burger was ...
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0answers
93 views

Do dental instruments need to be toyveled?

Metal utensils that will be used to handle food that's to be consumed generally need first to be immersed in a mikvah ("toyveled") (if owned by a Jew). If the food or utensil is hot, the utensil must ...
1
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1answer
93 views

Why does the RaMBa"M allow one to derive benefit from cooked mixtures of milk and meat of improperly slaughtered animals?

As noted in this other question and its comments and answers, the RaMBa"M allows one to derive benefit from the cooked mixture of milk and meat of an animal of a Kosher species that was not ...
3
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1answer
293 views

Kashrut of rennet for cheese & Difference between rennet and gelatin

I actually have 2 questions which are related. Traditionally, making cheese involves using rennet, a substance derived from animal stomach. If the rennet is derived from a non-Kosher animal, it is ...
4
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3answers
117 views

What is an example of a “Tavshil Shel Baser”

In Shulchan Aruch Yoreh Deah Siman 89 Sif 3 we find the following rule. According to the Machaber if one ate a "tavshil shel baser", then, in order to eat cheese afterwards, one must only wash their ...
3
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1answer
137 views

Cooking Parve food but with mixed utensils

If by mistake, someone who is cooking parve food but uses a dairy pot and selects a meat spatula or mixing utensil does this: A) Raise concerns about the food B) Render the pot non-kosher C) Render ...
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0answers
39 views

Concern for liquidy finished product only

"Meat and Dairy—A Kosher Consumer's Handbook", by the Star-K, indicates: Uncovered dairy in a clean fleishig [=meat] oven — If one cooks fleishig in an oven and ensures it remains clean (i.e. the ...
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2answers
215 views

Sleeping between meat and milk

I have heard in the name of the Chasam Sofer that if one sleeps after eating meat that they can be lenient in the amount of time one would normally wait between eating meat and milk. Is this written ...
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1answer
125 views

Davar charif cut with meat knife — why not ossur?

The SA in YD Siman 97 Sif 1 (the makor is a braisa in Pesachim Daf 30) says that one should not knead together a dough with milk, lest someone come to eat it together with meat. If one did knead them ...
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0answers
44 views

Smoking meat and milk

It says in SA YD Siman 87 Sif 6 that if one "smokes" together a meat and milk or if they "cook" it in the hot springs of Teveria then they are patur (however this is still ossur to do and of course ...
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3answers
159 views

Meat right after Milk… make a new bracha?

Suppose someone is planning on having some dairy food just before a meat meal. May the person make a bracha to cover the entire dairy/meat meal, or must he finish his dairy, make a bracha achrona, and ...