Questions tagged [cooking-bishul]

for questions about cooking generally and also about the halachic concept of bishul

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5
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2answers
438 views

minimum halachic definition of bread

This is sort of the counter question to Mezonos bread. At what point does a grain based admixture transition between bread and non bread? To clarify: The general position of Sephardic Jewry is that ...
-1
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1answer
56 views

Does the torah prohibit the consumption of Raw Meat for everyone?

Backstory I am a Noachide who started to experiment with a raw meat diet, after watching videos such as this: https://www.youtube.com/watch?v=v-cuT7q1dZ4 It has certainly peaked my interest, and ...
4
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1answer
161 views

Cold smoking and kashrut

related Cold smoking is a process by which food is cured by contact with smoke which fills the whole vessel but does not [ideally] exceed 80˚F, which is well below yad soledet (at least for my hands) ...
4
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1answer
490 views

Can a non Jew bake bread on Pesach for a Jew to use after Pesach?

In relation to If the last day of Passover is Friday, may I eat chametz on the Shabbat right after?, is there any problem if a non Jew bakes bread on Pesach (the Jew(s) did not ask him and can do ...
6
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1answer
3k views

Water heaters on shabbos and yom tov

I was looking into buying a more efficient water heater, and was dismayed to discover the significant halachic issues surrounding tankless water heaters (https://www.star-k.org/articles/kashrus-...
10
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2answers
293 views

Can one bake silkworms in a kosher oven?

Raising silkworms can be a fun project. If you're trying to get silk thread, the last step of the process, after they finish spinning their cocoon, is to bake them in the oven to kill them (if they ...
2
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1answer
68 views

What sources discuss whether a pareve dish can be used in the same oven as meat and/or dairy consecutively?

Suppose a pie dish was used only for making fruit pie, and has never contained any dairy or meat. Suppose it spends time cooking inside an oven that also contained chicken and meat. The question is,...
13
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2answers
1k views

Why does a Meat Thermometer not need Tevilla?

In this answer, We were told that "according to the Star-K Tevila Guidelines, no tevila is required for a meat thermometer." Why not? From the Star-K's article on Tevillat Kelim: Utensils ...
3
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1answer
202 views

Putting food into a cli sheini on Shabbos

We know that a food that is a "davar yavesh" (dry) that was already cooked (in a cli rishon) before Shabbos may be put into a pot of hot water (even a cli rishon -- so long that it is on the fire) on ...
5
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1answer
92 views

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 ...
7
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1answer
73 views

Food cooked on Shabbas for Pikuach Nefesh

What is the status of the leftover food cooked for a person who was critically ill on Shabbas? Halachicly one is allowed to cook food on Shabbas and eat it if their life is in jeopardy. However, let'...
1
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1answer
61 views

Keeping the flame going on Shabbat

In the (very) old days, when the only source of heat and cooking fire was the fireplace, how did they keep the fire going for a day on Shabbat without adding wood?
3
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1answer
60 views

Intentionally smelling the odor of food cooked by a Jew on Shabbos

Since it is forbidden to benefit from food cooked by a Jew on Shabbos, is the benefit only eating, or is it prohibited to intentionally smell the odor of the food being cooked as well?
7
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1answer
334 views

Does eating a parev item cooked in an oven with meat make you meaty?

If I cook (e.g.) roasted vegetables in an oven whilst at the same time cooking a chicken in a different shelf, would eating the roasted vegetables render me meaty? There are several factors that need ...
2
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1answer
85 views

Is the definition of “cooking” on Shabbat specific to applying heat energy?

In college, I recall an experiment where we boiled water by reducing the pressure in a flask that contained water until the water boiled. No heat was added. Would this be considered a melacha of "...
0
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1answer
373 views

Can one cook meat and fish dishes at the same time in the same oven?

The gemara in Pesachim 76b forbids one from cooking meat and fish together because of danger. But can one cook meat and fish dishes separately at the same time in the same oven? There can be a need ...
6
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1answer
2k views

Using a non-kosher toaster oven

What is the permissible way to use a non-kosher toaster oven? My thought process was that, when cooking milk in a meat oven, the covering of the dish and the rack makes it acceptable. Would covering ...
1
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1answer
108 views

Induction cooktop with blech

I have looked at this question regarding the use of induction cooktops on shabbat. The problem seems to be one of החזרה (returning to the fire) -- understandable, since one cannot take a pot off the ...
1
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0answers
91 views

A better way to warm up food on shabbat morning

When warming up food on a hot tray on shabbat, most poskim do not allow one to put the food directly on the hot tray, but rather insist on a plate or inverted pot or pan be placed on the hot tray and ...
17
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2answers
1k views

Starbucks VIA on shabbat

Someone recently mentioned in a conversation about making/ not making tea on shabbat with a tea bag, that the Starbucks VIA coffee is micro-ground vs how ever regular instant coffee is made and that ...
4
votes
1answer
110 views

If one accidentally reheats some soup on Shabbos, are they allowed to eat it?

If someone left soup on a hotplate when it was off, forgetting that it was on a timer and would come back on later, can he eat it after the soup is reheated, because you can't do this on Shabbos?
6
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0answers
89 views

Is Sous-vide Cooking or Roasting?

It has been discussed here previously regarding the Sous-vide method of cooking. However I have a separate question. What type of method is halachically categorized as? Is it Tzli or is it Bishul? ...
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0answers
19 views

Is blood “batel beshishim”? [duplicate]

I ask this question because I notice what seems to be a practical "contradiction". Inevitably, even after salting meat, there seems to be some blood in it. Yet, I notice some people that eat raw meat ...
0
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0answers
503 views

Tankless Water Heaters on Shabbos and Yom Tov

I have been trying to understand the issues with tankless water heaters on Shabbos and Yom Tov. (The simple description of how this works can be found here and here). I found this answer on Mi Yodeya ...
2
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1answer
62 views

How to cook with a metal disc on a treif glass top stove?

The Star-K gives this advice for kashering a glass top stove: https://www.star-k.org/articles/articles/kosher-appliances/2931/kashering-glass-corning-halogen-or-ceran-cooktops/ The sentence that I am ...
1
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3answers
636 views

Induction Cooktop on Erev Shabbat

There are statements on the web, for example from Star K, to the effect that an induction cooktop cannot be used on Shabbat. My question: are those statements outdated? Consider this: One could ...
12
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1answer
597 views

Where did the myth that the *entire* matza process must be done in under 18 minutes come from?

I've been going over the halakhoth for baking matzah, and even though I hear from almost every Rabbi I've asked that the entire process must be done in under 18 minutes, I can't find any evidence for ...
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0answers
82 views

Is cooking food in one's mouth forbidden on Shabbos?

If someone put an uncooked food into his mouth on shabbos, and then drinks water which is hot enough to cook the food (עירוי כלי ראשון שיד סולדת בו or if the food was מקלי הבישול even from a כלי שני) ...
3
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2answers
310 views

Is hot water on an airplane kosher?

Why is it generally assumed that hot water on an airplane is kosher? Is the urn that warms up water on an airplane strictly for water use? Or do they alternate and it can be used sometimes for other ...
3
votes
1answer
189 views

May one marinate fish on Shabbat?

I was viewing O.C. 321 and there are a few halachot at the beginning that mentions that one cannot salt or put cabbage in vinegar on Shabbat because it is similar to cooking. My understanding of this ...
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1answer
75 views

Cooking for the next day on yom tov

The Shulchan Aruch 503 writes that one cannot cook for the next day of yomtov . My question is once its the second night can one cook on the second night for the second day meal? Do we say the night ...
3
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2answers
143 views

Is there any permissible way to put cooked dry food into an oven on Shabbat?

I know that this seems like a very generalized question. But, perhaps, someone can help me understand something. I've viewed a number of online sites regarding whether one is allowed to rewarm dry / ...
5
votes
1answer
210 views

Making Wissotsky tea on Shabbos

I have heard that Rav Nachum Rabinovitch, shlit"a, (who, IMSMC, is strict regarding using tea bags/cold essence to make tea on Shabbos, even in a kli sheni [lit: second utensil]) is lenient with ...
0
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1answer
115 views

Leftovers and Chillul Shabbat

Suppose you were to cook much more food than you ended up needing on a given shabbat. Would it constitue chillul shabbat (or be disrespecting shabbat in any way) to either: A) eat the leftovers on ...
2
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1answer
61 views

Eruv Tavshilin and cooking immediately before shabbat

The gemara in Pesachim 46b appears to contain an argument as to why it is biblically permitted to cook on yom tov for a shabbat which immediately follows it. Rabbah implies that we need to rely on ...
3
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1answer
157 views

Can one warm cooked food on Shabbat by pouring hot water into it?

Is it forbidden to take some water from a hot water kettle and pour some into mashed potatoes for instance? Or any other cooked food?
5
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1answer
160 views

Why not cook a z'roa just for the seder plate, in light of mitoch?

It's customary to have a bone (with some meat on it) on the table for the Passover seder. Kitzur Shulchan Aruch 118:5 (as cited in the answers to another question on this site) writes: Once the ...
2
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0answers
27 views

An Unblech that may/will boil off

If someone uses a water blech (Unblech or k'deirah) to exploit whatever halachic advantage he sees from this pot on a pot method, does he have to anticipate the possibility that the water inside will ...
0
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0answers
60 views

Is it Mutar to do Shehiya and Chazara on Sternos?

Assuming the the water in the bottom pan is Yad Soledes Bo before Shabbos would it be Mutar to do Shehiya for the Friday night Shalom Zachar or the like on top of Sternos? I was primarily thinking ...
1
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1answer
423 views

Using hot water on shabbos

Is there any heter to use hot water on shabbos - for say washing dishes, or for bathing children (not addressing issues of drying hair etc)? Does leaving a faucet of hot water running before shabbos ...
6
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2answers
338 views

Ben Drosai - what was his Zechus?

Gemara Shabbos 20a and in other locations mentions כמאכל בן דרוסאי Rashi explains that Ben Drosai was a thief who ate his food when it was only cooked 1/3. Did Ben Drosai have some sort of Zechus ...
5
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2answers
190 views

Explain why the “kli sheini” rule works regarding Shabbat cooking

Please excuse my weak knowledge in this area. I find the cooking laws of Shabbat quite confusing and I'd like to get a simplified understanding of it, if possible. Apparently, pouring hot water from ...
1
vote
1answer
423 views

Warming up cold liquid on shabbas

There is a concept of ein bishul achar bishul (you can't cook a food more once its cooked already) . This concept applies to dry foods according to all opinions and one would be able to warm such food ...
3
votes
2answers
102 views

Is a soft boiled egg fully cooked?

On Shabbos, Chazarah, which is returning something onto the fire, is permitted if it was fully cooked already (among other conditions that have to be met)although it is Mitstamek v'yofe lo. Is a soft ...
1
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1answer
72 views

Can one char / sear a frankfurter on Shabbat?

I'm trying to get a better understanding of the general rule that "there is no cooking of already cooked foods". Let's say a frankfurter has already been cooked (via boiling, etc.) If one puts the ...
6
votes
1answer
179 views

What are some general halachot about treif culinary schools?

I have seen some assorted questions about specific occurrences in a non-kosher culinary schools here, however, I was wondering if there are any general halachot which apply. In other words, would it ...
2
votes
1answer
201 views

Can a piece of chocolate meltaway cake be reheated in the oven on Shabbat?

I am quite confused regarding some of the rules of reheating food on Shabbat. Here is my general "meek" understanding: already cooked liquids may not be reheated pre-cooked solids that become liquids ...
1
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0answers
109 views

Temperature controlled urn on Shabbat

What issues may be at play when adjusting the temperature of an urn on Shabbat, e.g. from 200° F to 80° F, specifically on an urn pictured below*? (Assuming the water is already pre-boiled before ...
7
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3answers
1k views

Coffee Urns on Shabbos

I've heard that there is a dispute among halachic decisors if one is allowed to use an urn like the one shown below on Shabbos because the outside water tube gets cold over Shabbos but then gets ...
9
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2answers
2k views

Sous-vide cooking for Shabbat

Sous-vide is a method of cooking food slowly, at a precisely-controlled temperature. This article in the New York Times reports that this method is becoming more and more accessible to and widespread ...