10

The OU uses a system where they remotely light an oven in order for the product to be Bishul Yisrael. From the OU website Rabbi Yehuda Shain has recently developed an ingenious system whereby the mashgiach can monitor the production from an off-site location. By installing a special device, it is possible to turn the oven on and off through the use ...


10

From Rabbi Dovid Ribiat's The 39 Melochos (p. 378): a) Aerosol spray cans ... The Igros Moshe permits the use of aerosol cans on Shabbos because the scattering is not caused directly by blowing or wind-force, but rather by the pressure of the liquid as it is forced through the microconduits in the nozzle head. Since the scattering is not ...


7

TL;DR: Consult your LOR. The CRC's website has a convenient chart of items that need toiveling, and for those that can't be toiveled, what should be done. For example: Coffee Maker - Glass parts - Tevilla. Machine - "clean well, do not use for 24 hours, and then run through one cycle" (Note that the CRC includes this paragraph:) Under no circumstances ...


7

Unlike typical food certification, there is nothing exceptionally special about the Star-K certification of appliances. They look at the specifications and functions, and apply their Poskim's understanding of the application of Halacha. The non-certified one can be shown to any Rabbi competent in that area and he can decide if the mode has any issues you ...


7

According to the OU - it may be used after they are cleaned and rinsed off. Q. The lunch area in our office has a can opener, peeler, bread-toaster (not a toaster oven), flatware, coffee mugs, glass dishes and glass cups available for anyone to use. Can I use them? A. The can opener and peeler can be used after they are cleaned or rinsed off.


6

So the issue is two fold: Do the contents of the pod forbid equipment, and does the process of brewing the coffee create an issue. I have spoken with a Rabbi who is active in Kosher certification about this issue in the past. He was machmir about it (especially in my context where the hot chocolate wouldn't be Cholov Yisroel, so there was no question of the ...


6

Only one refrigerator is needed in any Kosher kitchen. Meat and Dairy can be stored in the same refrigerator. See also here.


6

Nitei Gavriel (Hilchot Yom Tov, volume 1, chapter 21, paragraph 4) says: ‫ד. מותר לשים ביו״ט קדירה של מים ע״ג האש כדי שיעברו על‬ ‫שפת הקדירה ויכבו את האש מתחתיו, אכן יש לו להשתמש במים‬ ‫לבישול קדירה וכדומה דהו״ל לצורך יו״ט, ודוקא במקום צורך כגון‬ ‫שמפחד שהילדים יתקרבו להאש, אז מותר למלאות קדירה מים, כדי‬ ‫להרתיח על האש לצורך שתיה, בכוונה שהמים ...


5

See here where almost the exact same question is asked Some concerns: Could the taste of milk become transferred from the grate or stove top to a meat pot or vice versa?  In other words when I place my milk pot on the grate right after my meat pot, does the milk pot absorb the taste of meat? May I eat food that falls between the grates or on ...


5

In general, with any question about writing and erasing Hashem's name it is useful to check the halachos of writing and erasing on Shabbos, because there is a lot of overlap. R' Moshe paskens that playing Scrabble on Shabbos is neither writing nor erasing, unless you're actually sticking them in their place like some deluxe sets. In that case he says one ...


5

Practically speaking, no food is ever placed directly on the oven rack save for bread to be warmed or toasted. As such one can rely on Rabbi Moshe Feinstein who says in his Igros Moshe Yoreh Deah 3 siman 24 that toasters don't need tevila being that you are not cooking or preparing the bread, but rather just drying it. And while its true that this drying is ...


5

Mishna Avoda Zara 4:10 (פרק ד - משנה י): גּוֹי שֶׁנִּמְצָא עוֹמֵד בְּצַד הַבּוֹר שֶׁל יַיִן, אִם יֶשׁ לוֹ עָלָיו מִלְוָה, אָסוּר . אֵין לוֹ עָלָיו מִלְוָה, מֻתָּר . נָפַל לַבּוֹר וְעָלָה, וּמְדָדוֹ בַקָּנֶה, הִתִּיז אֶת הַצִּרְעָה בַקָּנֶה אוֹ שֶׁהָיָה מְטַפֵּחַ עַל פִּי חָבִית מְרֻתַּחַת, בְּכָל אֵלּוּ הָיָה מַעֲשֶׂה, וְאָמְרוּ יִמָּכֵר Bartenura: ...


4

As a child, when my parents would buy a sandwich maker or something of the sorts, we would give the ownership to our Non-Jewish friend and use it in our house. Our friend always gave us permission to use it ;)


4

#1 seems OK. The issues here are cooking and the usage of timers. There is no cooking problem for that which remains in the oven for 2 separate reasons: The food is cooked and The oven is off If the food would be uncooked and the oven on, you would effectively raise the temperature when you close the oven door thereby cooking the uncooked food Rema ...


4

From investigating AGA ovens, in theory there is no problem in kashering them. In practice it's gonna be quite complex. They have a ton of areas, and they are massive with a lot of thermal mass. In order to kasher them, you have to heat them up quite hot, but because of the thermal mass it's going to take a huge amount of energy and a very large flame. It ...


4

An important development on this topic. The Star-K used to say Keurig machines in a work environment were ok to use, but they have revised. "There was a time when a Keurig machine dispensed only coffee. Currently, however, soups containing non-kosher meat can also be dispensed. Therefore, an office Keurig machine may not be used unless one can ascertain ...


4

See Shabbos Kehalacha (vol. 2 12:39-42). Borer is not a problem if you don't want either thing but just want to separate them in order to dispose of them properly. (For example separating recycling from other garbage, papers for geniza from papers for garbage, Shemita fruit peels from other fruit peels to throw out). Similarly here were you don't want either ...


4

This is from the crcweb questions to Rav Belsky: Remote Lighting & Timers Submitted by: Rabbi Eli Gersten Some factories are located in remote areas and it is difficult for Mashgichim to visit frequently or on short notice. If such a factory requires bishul Yisroel, it may be impossible to send a Mashgiach every time the boiler ...


4

It would seem to be problematic based on information from sites such as this http://www.quora.com/How-do-Flavia-machines-work It seems a pipe or needle is poked into each packet to inject the hot water. If that is in fact the case, then that pipe will absorb the flavors from the nonkosher items, either through contact or steam. After which it will mix in ...


4

Probably the issue is hashmaat kol (leaving a noisy device running on shabbos that is considered a profanation of it's sanctity). - https://www.naaleh.com/hashmaat-kol-noise-on-shabbat-v5n9


3

I asked this question a couple of years ago to my LOR and was told that I should clean the surface as well as possible (two rounds of EZ OFF will do) and I should then cover the surface with aluminum foil.


3

http://www.ok.org/Content.asp?ID=115 The Sink: Separate sinks for washing dishes and preparing foods are recommended. If the two sinks are adjoining, there should be an effective separation between them so that no water or food splashes from one sink to the other. If there is only one sink, it may be used after it has been completely cleaned, ...


3

I checked with my LOR tonight about the tea urn and he said that while it would be good if no chametz has touched it during the year (and it was kept away from where there is chametz), it would be better to have a different urn for Pesach. The main reason is that it is quite easy for chametz to have gotten on the urn sometime during the year. I asked my LOR ...


3

According to the 2014 OU Jewish Action Passover Guide on page 14 under "Libun (Burning)" On Line THE KASHERING PRIMER – PASSOVER 2014 A self-clean cycle of an oven(approx 850 degrees F) also qualifies as libun I have done it but it can also mess up some utensils. I was also been given this advice by the Baltitimore star-k, when I called the office.


3

You wanted to know, why some people might be machmir on this: From InstituteforDayanim.com Kashering a microwave for Pesach is impossible since only metal or wood can be kashered for Pesach. Although one can kasher plastic the rest of the year, one should not do so for Pesach. The inside of a microwave is generally not metal and is thus not kasherable. ...


3

R Yitzchok Yaakov Fuchs (in his book Hakashrut, p. 665) writes Baking ovens and toaster ovens that were used for meat and dairy foods and even for prohibited foods may be used to bake or warm up kosher food on the condition that the food placed inside is wrapped hermetically in two wrappings. In any event only kosher baking tins or disposable ...


3

From a purely practical point of view, an advice from someone who cooks for Shabbat and often tries to keep meat from entering parve dishes, failing in approximately 25% of the cases: don't do it.


3

I don't have a source for this, but I have heard that in such a situation, it would be permissible to ask a child to hold the refrigerator door open so that the light would not be turned off on Shabbos. Naturally, it is expected that the child will eventually run away and the door will close. You still wouldn't be able to open the refrigerator again that ...


3

Regarding question 2 http://www.star-k.org/kashrus/kk-cooking-ovenshabbos.htm My oven and warming drawer have a delayed start timer feature. May I set it to go on Shabbos morning and place the food to be heated there on Shabbos before the pre-determined time? No. The food should not be placed there to be heated on Shabbos.


3

A comment from dmi_ provided a kashrut certificate from the London Beit Din (expires December 2016) that certifies many of the Flavia drinks, including the dairy ones excluded in the (presumably-older) link in the question. The certificate doesn't explicitly mention the machine and this answer brings up mixing via the steam from prior uses. I contacted ...


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