Arukh HaShulchan, Orach Chaim 253:9-18

Sugya Map

• Issue: The Arukh HaShulchan elucidates the rabbinic decree (gezeirah) prohibiting shehiyah (leaving food on a heat source) on Shabbat. The core concern is shma yechateh ba'gachalim (lest one stir the coals) to hasten cooking, an act of bishul (cooking) that constitutes a Torah prohibition. This gezeirah is modulated by the type of heat source and fuel.
• Nafka Mina(s):
  • Distinguishing between various ancient cooking vessels (kirah, kupach, tanur) and their inherent heat retention properties.
  • Analyzing the strength of different fuels (straw, gefet, wood, dung) and their coal-producing capacity.
  • Practical halacha l'maaseh for preparing food before Shabbat that continues to cook, informing modern applications for ovens, blechs, and slow cookers.
  • The methodology of Poskim who engage in archeological/historical analysis to understand halachic sources.
• Primary Sources:
  • Arukh HaShulchan, Orach Chaim 253:9-18.
  • Talmud Bavli, Masechet Shabbat 36b-38a (the shehiyah sugya).
  • Talmud Yerushalmi, Masechet Shabbat, Perek Kirah (cited by AH).
  • Rashi, Shabbat 36b s.v. "u'v'kirah" (cited by AH).
  • Rambam, Hilchot Shabbat 3:4-5 (cited by AH).
  • Tur, Orach Chaim 253 (cited by AH).
  • Rashbam, Bava Batra 20a (cited by AH).
  • Nimukei Yosef, Bava Batra 20a (cited by AH).

Text Snapshot

The Arukh HaShulchan (AH) dedicates considerable space to a detailed explanation of ancient cooking methods, arguing that understanding these specifics is necessary to correctly apply the halachot of shehiyah. This methodological premise is a chiddush in itself, emphasizing the historical context of halacha.

Key Lines and Nuance

1. "...it is necessary first to explain their method of cooking. Their ovens were not opened from the side as ours are, nor were they as large as our ovens. They had three types of ovens: kirah, kupach, and tanur... The kirah was made to hold two pots, being long and short, equal at the top and bottom. The kupach was also equal at the top and bottom... The tanur likewise held one pot, but it was wide at the bottom and narrow at the top..."[^1]

   • Dikduk/Leshon: The phrase "צריך לבאר תחלה אופן בישולם" ("it is necessary first to explain their method of cooking") underscores the AH's conviction that the physical realities of the time are integral to halachic comprehension, not mere historical trivia. His detailed structural descriptions of kirah, kupach, and tanur ("ארוך וקצר", "שווה מלמעלה ומלמטה", "רחב מלמטה וצר מלמעלה") are precise, setting the stage for his later critique of other Rishonim.

2. "...their fuel consisted either of straw and stubble... which produced a very weak fire and yielded few coals, or of gefet—the waste product of olives or sesame seeds. Olive waste produced a very strong fire with many coals... Likewise, wood produced a strong fire with abundant coals. They also used animal dung as fuel."[^2]

   • Dikduk/Leshon: The AH meticulously categorizes fuels by their heat intensity and coal production ("אש קלושה מאד ומעט גחלים", "אש חזקה מאד וגחלים הרבה"). This distinction is critical because the gezeirah of shma yechateh applies primarily where there are gachalim (coals) to stir, not merely a weak flame. His reference to the Yerushalmi and Rambam on animal dung highlights a textual discrepancy he will address.

Readings

1. Rambam (Hilchot Shabbat 3:4-5)

The Rambam provides a systematic framework for shehiyah, distinguishing between types of ovens and the necessity of giruf (sweeping coals) or kitum (covering coals) to permit leaving food.

• Rambam's Chiddush: The Rambam posits a clear hierarchy of heat sources based on their potential for bishul through stirring coals. For a tanur (which retains heat exceptionally well and is stoked with strong fuels like wood), both giruf (removing coals) and kitum (covering coals with ash) are required before Shabbat for shehiyah. For a kirah (which is less intensely heated), only giruf is required. For a weak heat source like kirah fueled by straw/stubble, no action is needed, as there are no substantial coals to stir. The Rambam further clarifies that giruf means removing the fuel, while kitum means covering the remaining embers with ash to prevent stirring and to signal a cessation of active cooking. He also defines gefet as a strong fuel comparable to wood, contrasting it with straw and stubble, which produce a weaker, less coal-intensive fire[^3]. This is a crucial distinction that informs the AH's analysis.

2. Rashi (Shabbat 36b s.v. "kirah")

Rashi's commentary is foundational for understanding the Gemara's discussion of shehiyah, particularly his definitions of the various cooking vessels.

• Rashi's Chiddush: Rashi describes the kirah as a 'double stove' or 'double oven' ("כירה – תנור כפול") designed for two pots, implying a structure that could retain heat. He also defines the tanur as a 'large oven' ("תנור גדול") and the kupach as a 'small oven' ("קופח – תנור קטן").[^4] Crucially, Rashi emphasizes that the gezeirah applies when there is shehiyah on a heat source that still has gachalim (coals) that could be stirred. If the coals are weak or removed, the concern of shma yechateh is mitigated. The AH in our text actually engages with the understanding of Rashi (or related sources like Rashbam/Yerushalmi cited by Tur) on the physical structure of the kirah, highlighting a potential divergence in how these ovens were envisioned. The AH, through his detailed architectural descriptions, aims to provide a more precise understanding than what he perceives as a potentially ambiguous or conflicting traditional description.

Friction

The Arukh HaShulchan's Structural Quandary

The AH identifies a significant internal contradiction regarding the physical structure of the kirah. After presenting his own detailed description of the kirah as "equal at the top and bottom" (שוה מלמעלה ומלמטה) and having its opening at the top, he notes: "There is difficulty with the Tur, Choshen Mishpat beginning of Siman 155, who cites the Rashbam that the kirah opened from the side. Likewise, the Nimukei Yosef there brings this from the Yerushalmi, which says the kirah was made like a dovecote."[^5]

• Kushya: The core kushya is the fundamental disagreement on the kirah's structure. If the kirah opens from the side, like a modern oven, it fundamentally changes the dynamics of heat retention and the accessibility of coals. An opening from the top, where the pot sits, allows for direct heat transfer from below and less exposure to the external environment, potentially retaining heat differently than a side-opening design. The gezeirah of shehiyah is intricately linked to how quickly heat dissipates and the ease with which one could stir coals. If the Tur/Rashbam/Yerushalmi describe a side-opening kirah, it seems to contradict the AH's understanding that the pot was "suspended over the hollow space" (היה תלוי על חללו), which implies a top-loading design. The analogy to a "dovecote" (שובך) further complicates things, as dovecotes are typically tall structures with small openings, which could be interpreted in various ways. This isn't a minor architectural detail; it impacts the halachic rationale for giruf v'kitum.

The Arukh HaShulchan's Terutz

The AH offers a nuanced terutz to reconcile the conflicting descriptions of the kirah:

• Terutz: "I am puzzled, for the meaning seems to be that it was equal at the top and bottom like a dovecote, unlike the tanur which was narrower at the top."[^6] The AH suggests that the "dovecote" analogy in the Yerushalmi (cited by Nimukei Yosef) refers not to a side-opening, but to the kirah's uniform width from top to bottom, distinguishing it from the tanur's conical shape (narrower at the top). He is essentially reinterpreting the Yerushalmi's simile. While he acknowledges the Tur's citation of Rashbam regarding a side opening, his own conviction, reinforced by the Yerushalmi's "dovecote" analogy (as he understands it), leans towards a top-opening, uniform structure. He implicitly dismisses the "side opening" interpretation, prioritizing the "equal at top and bottom" aspect as the defining characteristic. This terutz is a powerful example of how Poskim engage in textual and conceptual archaeology, trying to harmonize disparate descriptions by re-evaluating the referent of a metaphor. The AH's chiddush here is his insistence that the structural detail is paramount and his willingness to grapple with and reinterpret authoritative sources to achieve clarity, ultimately shaping his psak on the requirements for shehiyah on a kirah.

Intertext

1. Talmud Bavli, Shabbat 36b-38a

The sugya of shehiyah is the foundational source for the AH's discussion. The Gemara delves into the Mishnah's ruling that one may not leave food on a kirah or tanur unless they are garuf (swept) or katum (covered). The Gemara discusses the precise definitions of these actions, the types of heat sources, and the fuels that necessitate them. For instance, the Gemara differentiates between a kirah that is garuf and one that is katum for different scenarios, and introduces the concept that a kirah fueled by straw and stubble does not require giruf or kitum due to the weak fire and minimal coals[^7]. This directly underpins the AH's distinction between fuels and his detailed description of their properties. The entire AH passage is a deep dive into the practical implications and underlying rationales discussed in this Gemara.

2. Shulchan Arukh, Orach Chaim 253:1

The Arukh HaShulchan's own discussion is a commentary on the Shulchan Arukh. Rav Yosef Karo codifies the halachot of shehiyah concisely: "אסור לשהות תבשיל שאינו מבושל כל צרכו על גבי כירה שהוסקה בגפת ובעצים אא"כ גרף או קטם" ("It is forbidden to leave food that is not fully cooked on a kirah that was stoked with gefet or wood, unless he swept or covered it").[^8] The Shulchan Arukh then discusses the tanur and kirah stoked with straw/stubble. The AH's extensive explanation in our text (253:9-18) serves as the detailed perush (commentary) to this Shulchan Arukh, providing the historical and architectural context necessary to fully grasp Rav Karo's succinct rulings. The AH's meticulous breakdown of oven types and fuels is crucial for understanding why the Shulchan Arukh makes these distinctions, thus enriching the psak with its underlying lomdus.

Psak/Practice

The Arukh HaShulchan's rigorous historical-archeological analysis of ancient cooking methods has profound implications for modern halachic practice. The core gezeirah of shma yechateh remains entirely relevant, despite the obsolescence of kirah, kupach, and tanur.

• Modern Analogs: The classifications of heat sources and fuels translate to contemporary appliances. An oven with a thermostat that cycles on and off (like a kirah that could be katum) is generally permitted for shehiyah if the food is fully cooked or if the heat source is clearly not actively increasing the cooking (e.g., a blech). Electric slow cookers, which provide constant, low heat without the possibility of stirring coals, are often considered analogous to a kirah fueled by straw and stubble, requiring no giruf or kitum (though other hatmanah concerns may apply).
• Meta-Psak Heuristics: The AH's approach demonstrates that understanding the realia of the Gemara's time is not merely academic curiosity but a sine qua non for correct psak. This heuristic encourages Poskim to delve into the practicalities and technological contexts of halachic discussions, rather than relying solely on abstract principles. It mandates a holistic understanding of the sugya, integrating historical context with textual analysis to derive accurate halacha l'maaseh.

Takeaway

The Arukh HaShulchan exemplifies lomdus as a pursuit of clarity through contextual rigor, demonstrating that deep halachic understanding demands an appreciation for the historical and technological realities that shaped the original gezeirot. His meticulous reconstruction of ancient cooking methods transforms abstract halacha into a living, applicable framework.

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[^1]: Arukh HaShulchan, Orach Chaim 253:9-10. [^2]: Arukh HaShulchan, Orach Chaim 253:11-12. [^3]: Rambam, Hilchot Shabbat 3:4-5. [^4]: Rashi, Shabbat 36b s.v. "u'v'kirah". [^5]: Arukh HaShulchan, Orach Chaim 253:10. [^6]: Arukh HaShulchan, Orach Chaim 253:10. [^7]: Shabbat 36b-38a. [^8]: Shulchan Arukh, Orach Chaim 253:1.