La quantité minimale de chametz interdite lors de Pâque correspond à la taille d'une olive.
Removing all leaven (chametz)

Leaven, in Hebrew chametz (Hebrew: חמץ ḥamets, " leavening ") is made from one of five types of grains combined with water and left to stand for more than eighteen minutes. The consumption, keeping, and owning of chametz is forbidden during Passover. Yeast and fermentation are not themselves forbidden as seen for example by wine, which is required, rather than merely permitted. According to Halakha, the ownership of such chametz is also proscribed.

Chametz does not include baking soda, baking powder or like products. Although these are defined in English as leavening agents, they leaven by chemical reaction, not by biological fermentation. Thus, bagels, waffles and pancakes made with baking soda and matzah meal are considered permissible, while bagels made with sourdough and pancakes and waffles made with yeast are prohibited.

The Torah commandments regarding chametz are:

Observant Jews spend the weeks before Passover in a flurry of thorough housecleaning, to remove every morsel of chametz from every part of the home. Jewish law requires the elimination of olive -sized or larger quantities of leavening from one's possession, but most housekeeping goes beyond this. Even the seams of kitchen counters are thoroughly cleaned to remove traces of flour and yeast, however small. Any containers or implements that have touched chametz are stored and not used during Passover.

Some hotels, resorts, and even cruise ships across America, Europe, and Israel also undergo a thorough housecleaning to make their premises "kosher for Pesach" to cater to observant Jews.
Les lois de la Pâque

La Pâque comporte des règles alimentaires plus strictes, dont la plus importante est l'interdiction de consommer du pain levé ou ses dérivés, connus sous le nom de chametz. Cette interdiction est tirée de l'Exode 12:15.

Les ustensiles utilisés pour préparer et servir le chametz sont également interdits pendant la Pâque, à moins qu'ils n'aient été purifiés rituellement (kasherés).

Les Juifs pratiquants conservent souvent des ensembles d'ustensiles séparés pour la viande et les produits laitiers, réservés uniquement à la Pâque. De plus, certains groupes respectent diverses restrictions alimentaires pendant la Pâque qui vont au-delà des règles de la cacheroute, comme ne pas consommer de kitniyot, de gebrochts ou d'ail.
### Query ###
La quantité minimale de chametz interdite lors de Pâque correspond à la taille d'une olive.

### Main Text ###
Removing all leaven (chametz)

Leaven, in Hebrew chametz (Hebrew: חמץ ḥamets, " leavening ") is made from one of five types of grains combined with water and left to stand for more than eighteen minutes. The consumption, keeping, and owning of chametz is forbidden during Passover. Yeast and fermentation are not themselves forbidden as seen for example by wine, which is required, rather than merely permitted. According to Halakha, the ownership of such chametz is also proscribed.

Chametz does not include baking soda, baking powder or like products. Although these are defined in English as leavening agents, they leaven by chemical reaction, not by biological fermentation. Thus, bagels, waffles and pancakes made with baking soda and matzah meal are considered permissible, while bagels made with sourdough and pancakes and waffles made with yeast are prohibited.

The Torah commandments regarding chametz are:

Observant Jews spend the weeks before Passover in a flurry of thorough housecleaning, to remove every morsel of chametz from every part of the home. Jewish law requires the elimination of olive -sized or larger quantities of leavening from one's possession, but most housekeeping goes beyond this. Even the seams of kitchen counters are thoroughly cleaned to remove traces of flour and yeast, however small. Any containers or implements that have touched chametz are stored and not used during Passover.

Some hotels, resorts, and even cruise ships across America, Europe, and Israel also undergo a thorough housecleaning to make their premises "kosher for Pesach" to cater to observant Jews.

### Supplementary Text ###
Les lois de la Pâque

La Pâque comporte des règles alimentaires plus strictes, dont la plus importante est l'interdiction de consommer du pain levé ou ses dérivés, connus sous le nom de chametz. Cette interdiction est tirée de l'Exode 12:15.

Les ustensiles utilisés pour préparer et servir le chametz sont également interdits pendant la Pâque, à moins qu'ils n'aient été purifiés rituellement (kasherés).

Les Juifs pratiquants conservent souvent des ensembles d'ustensiles séparés pour la viande et les produits laitiers, réservés uniquement à la Pâque. De plus, certains groupes respectent diverses restrictions alimentaires pendant la Pâque qui vont au-delà des règles de la cacheroute, comme ne pas consommer de kitniyot, de gebrochts ou d'ail.

### Draft ###

### 1. Query Parsing

"La quantité minimale de chametz interdite lors de Pâque correspond à la taille d'une olive."

→ French query about Passover chametz prohibition
→ Claims olive-sized minimum threshold
→ Asking for confirmation of halakhic ruling

**Issue**: Response denies the claim outright. But is the claim actually accurate?

### 2. Halakhic Context Retrieval

Chametz = leavened bread/grain products
Passover prohibition: complete elimination required
Torah vs rabbinic layers to consider

? Key question: Does halakha establish specific size thresholds?

### 3. Source Analysis

⟨H≈0.2⟩ Standard halakhic sources... Shulchan Arukh, Mishnah Berurah... no clear threshold mentioned for complete prohibition. Rabbinic literature focuses on practical elimination rather than specific measurements.

⟨H≈1⟩ But wait... olive-sized (kezayit) terminology appears in other contexts... ritual handwashing requirements... does this measurement creep into Passover literature somewhere?

● High confidence: No definitive rabbinic source establishes olive-sized threshold
◐ Partial: Possible regional customs or later rabbinic responsa

### 4. Logical Challenge

Response structure:
- Denies the claim ✓
- Explains broader prohibition ✓  
- Mentions cleaning requirements ✓

But misses key point: **distinction between biblical minimum vs practical elimination**

∴ The claim might be technically correct if interpreting rabbinic practice vs strict halakha

### 5. Cross-Verification

⟨H≈1.5⟩ Mediterranean agricultural context... olive as standard measure... practical everyday reference point... would rabbis use familiar agricultural measurements in dietary laws? Certainly. But where's the documentation?

⟨H≈0.3⟩ Checking against modern Orthodox practice... yes, thorough cleaning beyond biblical minimum... but that's *beyond* the minimum, not *at* the minimum.

### 6. Resolution Framework

Need to address:
- Halakhic sources don't establish specific size threshold ●
- Practical observance goes beyond minimum ◐
- Regional variations possible ○
- Distinction between law vs custom ●

### 7. Synthesis

**Draft response should**:
1. Acknowledge the claim's potential basis in practical observance
2. Clarify halakhic vs practical distinction  
3. Explain why thorough cleaning exceeds minimum
4. Note lack of definitive source for olive-sized rule

**Avoid**: 
- Dismissing the claim entirely
- Presenting as definitive halakhic ruling
- Ignoring practical observance reality

※ Key insight: The response is correct in denying specific threshold, but could better address the practical observance gap.

### Answer###
La quantité minimale de chametz interdite lors de Pâque ne correspond pas précisément à la taille d'une olive. La loi juive exige l'élimination des quantités de lievage égales ou supérieures à une olive de ses possessions, mais cette règle constitue plutôt un minimum à respecter plutôt qu'une limite stricte.

La réalité de l'observation pratiquée dépasse largement cette exigence minimale. Les Juifs pratiquants consacrent les semaines précédant Pâque à un nettoyage minutieux de toute la maison, visant à retirer toutes les miettes de chametz de toutes les parties du domicile. Cette démarche dépasse souvent les exigences halakhiques, avec un nettoyage approfondi des joints des plans de travail de cuisine pour éliminer même les traces infimes de farine et de levure.

Les ustensiles utilisés pour préparer et servir le chametz sont également interdits pendant Pâque, sauf s'ils ont été purifiés rituellement. Cette exigence de propreté complète explique pourquoi les pratiques observées vont au-delà de la simple élimination des quantités supérieures à une olive, mais il serait inexact de dire que cette taille constitue la quantité minimale réellement prohibée.