Questions tagged [water]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
44 views

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, ...
2
votes
0answers
25 views

Paying damages for rerouting flood to neighbor's property

Are you obligated to pay for damage done to a neighbor's property if you redirect a river from flooding your property which then hits another house down the street. (i.e. You place sandbags in front ...
4
votes
1answer
69 views

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 ...
0
votes
1answer
77 views

Leaving drink out over night

For those who hold that leaving water out uncovered is an issue (Cf. The Gr"a), the same stringency applies to any water-based beverage - like tea, coffee, sugary drinks etc. However, the halacha ...
0
votes
2answers
79 views

Teshuva and spilling cold water on one's body

To repent can you pour cold water on yourself in the shower. With a pot or something while having teshuva in mind for the sin? Does it do anything? Like I’ve heard people do it before Yom Kippur. Can ...
0
votes
0answers
320 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 ...
4
votes
1answer
59 views

Why does water purify?

The Torah states that immersion in a mikveh of water purifies a person from Tuma (spiritual impurity). Why does water do this? Is there some kind of spiritual powers imbued in water? Or is this just ...
0
votes
0answers
55 views

Water is Chesed

I read somewhere that "according to the kabala, water represents Chesed (kindness)". Any one know a source for this, and what that means in layman's terms?
1
vote
0answers
60 views

Drink fresh water after Shabbos coming from Miriam's well?

Taamei Haminhagim 423 explains the custom of women to draw water immediately when they hear “Borchu” after Shabbos. In short it says, In Agada it says that the Well of Miriam which is in the sea ...
2
votes
1answer
167 views

Water to prevent dehydration before kiddush on Shabbos morning?

The halocho is that after davenning on Shabbos morning, it is forbidden to drink water until one has made kiddush. See dinonline. Consider the following situation: one has davenned on a warm Shabbos ...
3
votes
2answers
270 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
124 views

Is the pipe which drains water out of the air-conditioner unit a Bossis L'davar Assur, because the water in it is Nolad B'shabbos?

Is the plastic pipe which drains the condensation water out of the air-conditioner unit a "Bossis L'davar Assur, because the water inside it is Nolad B'shabbos? If the whole pipe is either vertically ...
9
votes
3answers
3k views

Is it permitted to bring bottled water from an outside source into a kosher dining hall?

I was eating in the kosher dining hall (because it often has better food than the goy hall) and, after I finished drinking from the water bottle I had brought with me, a Jew walked up to me and told ...
2
votes
2answers
376 views

Salt Water With Karpas

Why do some specifically use saltwater at the seder for karpas? NOTE: Rav Shraga Simmons suggests the common answer that it resembles our tears in Egypt, but I haven't seen any commentators offer ...
1
vote
1answer
192 views

Does a refrigerator ice machine need to be cleaned for Pesach?

Many refrigerators have an outside ice / water dispenser. The fridge makes ice "cones" which go into a reserved plastic ice bucket that is attached to the inside of the fridge door. Ice can be ...
5
votes
1answer
79 views

What is the status of water used for Kashering?

If one kashers a pot by boiling water in it (and throwing rocks in so it overflows) or kashers silverware IN a pot, what is the status of the water afterwards? [I see that water can acquire some ...
6
votes
1answer
121 views

Is it dangerous to drink water on Tuesday and Friday nights?

The Gemara in Pesachim 112a says A person should not drink water on Tuesday nights or [...] Friday nights. And if he drinks water, his blood is upon his own head, due to the danger. What is this ...
6
votes
2answers
116 views

B'nai Yisra'el complaining about water and food - sometimes punished, sometimes not

There were numerous times that B'nai Yisra'el complained to Moshe (and, sometimes, Aharon) about the lack of food or water in the desert. But, it seems that sometimes G-d punishes them and sometimes ...
4
votes
1answer
366 views

Blessing over a wine-water mix

Someone I know likes to mix (commercial) grape juice or wine with water or seltzer and drink the result. Of course, the first of those two ingredients normally requires "hagafen" and "al hagefen", ...
1
vote
1answer
332 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 ...
0
votes
0answers
65 views

How could the angel of the sea disobey?

The Midrash in Bamidbar Rabbah 18:22 expounds Iyov 26:12 that when HaShem created the world, he told Rahav, the angel in charge of the ocean, to "open his mouth and swallow all the waters of Creation" ...
0
votes
3answers
107 views

Mayim acharonim minimum

Do the little mayim acharonim cups which barely sprinkle enough water for three people have any source in halacha, other than what the Mishnah Berurah (181:10) is upset about? Although using the ...
2
votes
0answers
65 views

How much snow for tevilah?

In respect to tovelling dishes in the snow, this discussion concludes that who knows what the Shulchan Aruch holds, but the Rema allows such a practice in times of need. But just how much snow? After ...
2
votes
0answers
37 views

R' Yehoshua and the Athenian Elders: Endless pouring

This is part of a series of questions on the Gemara in Bechoros 8b-9a. Below is a summary of the relevant parts of the Gemara. After being challenged by Caesar, R' Yehoshua went to Athens to defeat ...
2
votes
1answer
85 views

May one soak bulgur wheat on Shabbat?

One method to make tabouleh, is to soak bulgur wheat in water. The method is to pur an amount of bulgur into a bowl, cover it with water and have it soak in the fridge for about 30 mins. until the ...
1
vote
1answer
56 views

Moshe doubts G-d in Numbers 20:8

In Numbers 20:8 G-d commands Moshe to speak to the inanimate rock for water. Was this really a reasonable command for G-d to make? Even Moshe seems to have thought this was an impossible ...
4
votes
2answers
111 views

What were Moshe and Aharon supposed to say to the rock?

B'midbar 20:8 shows that G-d instructs Moshe and Aharon to speak to the rock, and it will bring forth water. Usually, when G-d instructs Moshe to speak to B'nai Yisra'el he indicates what Moshe ...
1
vote
1answer
85 views

Must ice cubes be designated meat or dairy and separated?

If I have a freezer each for meat and for dairy, can the ice from automatic ice cube maker in my meat freezer be used to cool dairy drinks?
4
votes
1answer
91 views

Can hot tap water touching rainwater frozen by winter create a valid mikveh?

I'm considering building an outside mikveh, with the freshwater section above the rainwater section (with two holes between them, classical "bor al gabai bor" halachic design) but there is no ...
3
votes
2answers
240 views

Why does fruit juice, when mixed with flour, not count as chametz, since it contains water?

How can mixing flour with fruit juice be permitted on Passover, since all fruit juice, even pure juice directly squeezed from fruit always contains water?. Water, H2O, is simply a chemical component ...
0
votes
0answers
98 views

Maharil and Terumat haDeshen: Mayim Shelanu

Inspired by this question. I have heard a machloket in the names of the Maharil and the Terumat haDeshen about the source for mayim shelanu. While the details were given, the sources were not. The ...
0
votes
0answers
475 views

Mayim shelanu history?

The water used to bake Matzah must be mayim shelanu—water that had been drawn in the evening and left to cool overnight. What is the halachic background for this requirement?
4
votes
1answer
2k views

Why would spring water or mineral water need a kosher certification?

Nearly every popular U.S. brand of spring or mineral water that I've seen has a kosher certification symbol on the bottle. Amonng them are Perrier and Saratoga (mineral / sparkling) and Poland Spring ...
3
votes
1answer
85 views

Hydroponics – Allowed on Seventh Year?

Would hydroponics be allowed in Israel on the seventh year, when there are additional restrictions on farming the land?
6
votes
1answer
162 views

Can an igloo be a valid succah?

Follow up to this answer. The end of item 1 encouraged me to ask a question regarding using ice as the succah walls. Assume that scrub brush is used as schach. Some additional parameters regarding ...
3
votes
1answer
122 views

Can flowing water be used as walls for a sukkah?

Is it permissible to make a sukkah with walls made of flowing water (assuming that schach can be suspended over these 'walls')? Furthermore, would the water need to be 'continuous' or 'wall-like' (...
4
votes
2answers
413 views

For puposes of Tashlich, what is considered a “body of water”?

On the 1st day of Rosh Hashanna (if not Shabbat), customarily people go to a body of water for Tashlich. Does the water have to be there currently and must be a "natural" body of water? If so, what's ...
0
votes
0answers
88 views

Will accidentally wetting a page of an English Tanakh rend it non kosher?

If someone accidentally dropped a drop of water on a page of Tanakh will reading it, and the Tanakh is in English and the drop of water didn't fall on any name of HaShem. Will that make it non kosher ?...
4
votes
1answer
146 views

Water Fasts and Halacha

Some spiritual disciplines have a concept of a "water fast" (see https://en.wikipedia.org/wiki/Water_fasting), during which one consumes only water, tea w/o sugar, etc. Clearly, consuming even water ...
1
vote
1answer
69 views

Why does the Chumash have to explain what “thirst” means?

In Parshat Eikev, Moshe recounts all the challenges of the time in the desert. In Devarim 8:15 we read, 15.Who led you through that great and awesome desert, [in which were] snakes, vipers and ...
7
votes
2answers
627 views

Is a dud shemesh allowed to be used on Shabbat?

Can a solar-powered water heater (a dud shemesh [דוד שמש] in Hebrew) be used on Shabbat? These are quite common in Israel as a way of heating water without electricity on a sunny day. Essentially, ...
5
votes
1answer
94 views

Why singular “וְלֹא הָיָה מַיִם” in Bamidbar 20:2?

The word מַיִם is, as far as I know, pretty consistently grammatically plural in Chumash (and, incidentally, in more modern Hebrew also). That is, the adjectives that modify it are plural adjectives, ...
1
vote
1answer
57 views

What's the difference between בְּמַיִם and בַּמַּיִם?

In Tanach, the noun מַיִם occasionally is prefixed with a ב־. When the noun is modified by an adjective, the word formed is בְּמַיִם, as in Bamidbar 24:7 "וְזַרְעוֹ בְּמַיִם רַבִּים", N'chemya 9:11 "...
4
votes
2answers
140 views

How did the water climb so high?

The Gemara in Sota 34 says וכיון שניטבלו רגלי כהנים במים חזרו המים לאחוריהם שנאמר וכבוא נושאי הארון עד הירדן וגו' ויעמדו המים היורדים מלמעלה קמו נד אחד וכמה גובהן של מים שנים עשר מיל על שנים עשר ...
3
votes
1answer
220 views

Water left unopened

According to this article from the Kof-K one is obligated in covering water bottles, but we dont practice today as snakes are not common, but what if i lived in a desert like city, like Phoenix ...
6
votes
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 (http://www.star-k.org/kashrus/kk-...
11
votes
1answer
409 views

does a water bottle become fleishig from a meal?

If I drank from a water bottle during a meat meal, does it become meat? Basically, if I drink from the same water bottle a few hours later, do I need to wait six hours again?
4
votes
3answers
212 views

Can someone help me understand Genesis Rabbah 4?

The beginning of Genesis Rabbah 4 talks mainly about the firmament in creation account. It goes as follows (from the Artscroll Mesorah publication): (4:2): "At the moment the Holy One, Blessed is He,...
9
votes
1answer
705 views

Is ice considered food or drink in Halacha?

Is ice considered food or drink in Halacha? So for example, if one would eat an kezais of ice on yom Kippur, but it would not be equal to a reviyis, would he be liable for a chatas?
1
vote
1answer
138 views

Can noisy fans and humidifiers be run on Shabbat in a home that has had a flood?

Talmud Shabbat 18a states that “It is forbidden to place grain in a water mill [on Erev Shabbat] unless it will be ground before nightfall. Why? Rabba said: Because it creates noise.”[10] Rashi ...