Questions tagged [chametz-leaven]

Something made from one of the five grains, and which has been allowed to rise (leaven). Forbidden to eat or possess during Pesach (Passover).

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1answer
76 views

Bedikas Chametz if staying at someones house (30 days prior to and) during Pesach

I was looking on halachapedia and different sources, but I couldn't find an answer to a particular question: If a Jew is staying at someone else's house (whether a Jew or a gentile, but let's say it'...
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1answer
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Selling chametz if two people share a house?

I was just wondering a general law about the sale of chametz (specifically through chabad.org but also in general), that if two people jointly own a house, then should they each individually fill out ...
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1answer
38 views

Deriving benifit from Chametz on pesach [duplicate]

Someone asked this and I can't find the question anymore but i found a source to answer this. Can one derive benefit from chametz on Pesach?
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When does ethanol become Chametz?

I don’t know much about chemistry or alcohol, so please bear with me for a moment. At what point does wheat- or barley-derived ethanol become Chametz? Is it naturally Chametz, or does it require a ...
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forgetting about chometz in someone else's property

If one has property in non Jew's house for storage that is chometz and one pesach the owner forgot about this chometz. The nature of the storage being unpaid for and not even set aside in a specific ...
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Pikuach nefesh and matzoh shopping [closed]

Apropos of this viral post: https://twitter.com/Dr_Ophelian/status/1247386646317633536. My understanding is that the principle of pikuach nefesh is not applied like this, but I am not certain why. ...
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1answer
45 views

Selling chametz before burning it?

During a shiur, I heard the Dayan of the Chasam Sofer first sold his chametz, and then bought chametz to burn. Why would someone specifically sell their chametz before biur chametz?
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Buying Chometz With Intention To Sell It Over Pesach

I recently heard that although it is permissible to sell Chometz over Pesach, one may not purchase Chometz specifically for a time post Pesach, with intention to sell it during Pesach. Does anyone ...
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Ratios of Hameitz-to-Other for Owning

For the prohibition of owning hameitz on passover, what is the ratio of hameitz-to-other that makes a mixture hameitz? The prohibition of owning hameitz is a separate mitzvat lo-ta'asei, as listed by ...
3
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1answer
197 views

Is the gas in my car chometz? [duplicate]

A great deal if not most gasoline in America may contain ethanol. Ethanol may be sourced from corn, wheat, and other potentially problematic sources. What's more, its combustion in the engine might ...
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1answer
48 views

Is indirect “benefit” (Hana'ah) also forbidden?

Some things are forbidden via halacha in local terms, such as eating, but some things are so forbidden that we may not derive hana'ah, benefit from them in any way. Chameitz She'avar alav HaPesach, ...
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Collecting water before pesach

People who are worried about chometz in water on pesach collect water before pesach so it can be Me'vutal before pesach. However won't they cause themselves a bigger problem? If they are worried for ...
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1answer
543 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 ...
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1answer
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When do you own the food in your farm-share box?

In a farm share (CSA, community-supported agriculture), at the beginning of a season you subscribe to and pay for a share, and then you receive regular deliveries of whatever food those farms produced ...
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1answer
228 views

Cointreau on Passover

Can those who do not rely on heter mechira (selling) for real chametz keep Cointreau over Passover? What is the origin of the alcohol in Cointreau? Does Cointreau contain grain alcohol from, e.g., ...
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Do you investigate chametz gifts?

When receiving a nonperishable chametz gift from a nonobservant Jew, is one required to sensitively investigate whether the giver owned it during Pesach, which would make the gift forbidden due to the ...
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Can you buy chametz during Pesach that will be delivered after Pesach?

As an example, during Hol Hamo'ed Pesach, could you buy chametz online knowing that it will arrive after Pesach? My assumption is that it would be OK, as the buyer doesn't actually own the product ...
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If the last day of Passover is Friday, may I eat chametz on the Shabbat right after?

This year, 5778, the last day of Pesach in Israel is on Friday. Is there any possible way that one could contrive to eat chometz on the shabbos immediately following Pesach?
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Medical dental supplies Kashrut for Passover considerations

Should one be suspicious of any dental supplies for being hametz when one goes for a dental appointment during Passover? Let's put rules of labor and scheduling-for-hol hamoed aside: I'm asking ...
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1answer
70 views

Is smoke chametz?

Let's say while people are burning chametz, (this is a public burning area where many people come to burn the chametz in a big pile) someone puts a grill over the smoke and puts a king salmon on the ...
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68 views

Retroactive benefit for a Gentile's chametz?

Some credit card companies offer a cash bonus for store purchases. Let's say Mincha has a live-in Gentile worker, Jim. Jim is an authorized credit card user for Mincha's account. During Pesach, Jim ...
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157 views

Do you own chametz bought on credit?

On Hol Hamo'ed, someone purchases chametz on-line using a credit card. The order was processed during Hol Hamo'ed, but will arrive at the person's home after Pesach is over. The credit card payment is ...
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1answer
47 views

What's the minimal requirement required to nullify chametz kept in a public fridge?

Let's say someone keeps chametz in a shared office fridge. The fridge is used by both Jews and non-Jews. On the morning of Erev Pesach, prior to the time that it is prohibited to own chametz, the ...
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1answer
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At what point do we need to be concerned that wheat (or any of the 5 grains) becomes chametz?

I am not that familiar with the science of fermentation as it applies to chimutz. My understanding is that we have a concern that if the wheat becomes wet, it starts to be chamet after a certain ...
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Can being fastidious and delicate (איסטניס) get lenience in cleaning for Pesach?

The agricultural and technological revolutions changed a lot in our perception of food and we all became more fastidious and delicate (is it good for איסטניס?) - we even have expiration dates on ...
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Sources for Minhag of partial Pesach Cleaning if away

I am looking for any sources for the Minhag of only needing to clean one room in your house for Pesach if you are going to be away for the whole chag.
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Bittul (nullification) and Mechira (sale)

Sorry if this is a duplicate. It is my understanding that one must sell his chometz, prior to declaring his chometz nullified. Reason being, how can one sell something that is null and void? It is ...
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1answer
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Why are Oats Chametz if oats cannot rise

Oats do not have gluten so they cannot rise - like rice and other such grains. I could understand why they would be kitniot but why are they chametz? I know in arvei psachim there is an opinion that ...
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154 views

Are there communities which permit oats on Pesach?

It's a bit controversial that oats are considered chametz. While Rashi (Pesachim 35b, et. al.) translates Shiboles Shu'al as oats, not all Rishonim agree to this definition. For instance, the Rambam (...
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208 views

Becoming Chametz at 18 mins

According to the Talmud Pesachim 46a, a non-leavened dough should show signs of Chimutz within a shiur of walking a Mil (or 4 Mil according to the Yerushalmi), which is 18 to 24 minutes. Similarly if ...
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1answer
717 views

Microwave on Pesach

A friend told me that his family will kasher his microwave in general (ie if non-kosher food was heated up in it) but will not kasher it for Pesach, letting it lie dormant instead. Does anyone have a ...
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1answer
119 views

Chometz Gamur after Pesach, buying and eating

For someone who is machpid not to sell chometz gamur, but either burns, gives away, eats or throws it in the trash, etc, before Pesach, would he also be machpid not to buy and consume chometz gamur ...
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609 views

Why isn't Amaretto Kosher for Passover?

I was recently told that Amaretto isn't Kosher for Passover (as I never drink it, I don't much care, but it got me very curious, as to the best of my knowledge there is nothing in its ingredients that ...
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1answer
51 views

Keeping flour mixed with mei peiros on Pesach

According to the OU and other kashrus agencies (https://oukosher.org/passover/articles/chametz-when-to-peddle-when-to-purge/) cookies and even licorice are considered chametz gamur which one may not ...
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1answer
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Can you say the Birkas Hagomel on Shabbos or Pesach?

We do not say “Mizmor LeSodoh” on those days when a Korban Todah could not be brought. So we do not say it on Shabbos or Yom Tov because you could not bring individual offerings on those days and we ...
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Chemistry Experiment with Chametz on Pesach

If one is in a school environment where he/she has a chemistry lab/lab exam on Chol Hamoed Pesach that they must attend (putting the question of doing this on Chol Hamoed aside), and the lab exercise ...
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1answer
179 views

Why is Chametz burned instead of being donated to charity on Passover?

Slight preface: I’m Jewish, but secular at best. So I know “how things work” in some ways, but still have questions from my own perspective. That said, one aspect of Passover has always confused me: ...
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Is this a valid method to be able to eat chametz on Shabbat after Pesach in Israel? [duplicate]

This year (and next) in Israel, Shabbat immediately follows the last day of Pesach. Of course, the chametz that people sold has not been bought back, but, as it is no longer Pesach, one can eat ...
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2answers
245 views

Can one open the chametz closet for any reason during Pesach?

My understanding of the prohibition of Bal Yer'aeh (Do not see / find the chametz) is that it is a "protection" against eating the chametz. Thus, the chametz is usually stored in a sealed closet. ...
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3answers
784 views

Do dentures, denture cleaning tablets need to be Kosher for Passover? [closed]

In the spirit of the Pre-Pesach holiday, I thought I might ask a question on Pesach Halachot... I have a denture which has been cleaned with a standard denture cleaner. The cleaner is a tablet that ...
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1answer
137 views

Maror versus only peeled vegetables

The ideal vegetable for maror is some kind of leaf and/or stalk; roots are distinctly inferior and may not count at all (Shulchan Aruch and commentaries, 473:5). Being extra-strict about, and adding ...
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Keeping Chometzdik Lost Item On Pesach For Non-Jew to Pick Up? [closed]

When a non-Jewish friend from my hometown was visiting me where I now live, I gave him a gift of scotch. After receiving the gift, he then accidentally left the scotch at my home. I will be returning ...
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1answer
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Why is mechiras chameitz done through a Rav?

The general procedure for mechiras chameitz is as follows: you tell your local Rav to sell your chameitz to a non-Jew in the city, and he does so. Is there any reason why I can't sell my chameitz to a ...
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1answer
61 views

Birdseed and Bal Yeraeh

Does one need to get rid of whole dagan (e.g. wheat or barley) kernels before Pesach (such as might be found in packages of birdseed)? Could there be any concern of a biblical/rabbinic prohibition?
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Can one leave birdseed in an outdoor bird feeder during Pesach? [duplicate]

This question regarding selling birdseed that contains wheat or barley, etc. states that if the seeds get wet, they are chametz. The seeds in an outdoor bird-feeder in a non-desert climate certainly ...
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1answer
369 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 ...
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0answers
50 views

Chametz removal and public garbage pick up [duplicate]

This is an area that really confuses me... I've heard from two rabbis that if you place your chametz in your trash can, but the trash doesn't get picked up before the deadline to own chametz on Erev ...
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1answer
90 views

Passover baking with milk instead of water

Juices and liquids constituted partly of water, but themselves not pure water, do not create chametz when mixed with flour, according to another set of answers here on Mi Yodeya. Does this same ...
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1answer
245 views

Can one use a milk frother on Pesach?

Gourmia makes a milk frother. The machine consists of a stainless steel pitcher that has a rotating "wheel" with an optional removable wire wisk that attaches to the wheel. The whisk is used to create ...
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0answers
50 views

Chametz on Pesach in products other than food

Is it allowed to have products for cosmetics or medicine which contain elements of what's considered chametz during the Pesach?