Arukh HaShulchan, Orach Chaim 253:26-32

Sugya Map

The Arukh HaShulchan in Orach Chaim 253:26-32 delves into the nuanced gezeira (rabbinic decree) of shehiya (allowing food to remain on a heat source on Shabbat), specifically targeting the prohibition of yichutei b'gechalim (stirring coals). This sugya is foundational to understanding the parameters of cooking on Shabbat.

• Issue

  The core issue is the rabbinic prohibition against leaving food on a heat source before Shabbat if there is a concern that one might "stir the coals" on Shabbat itself to hasten cooking. This act, chittuy b'gechalim, is considered a bishul (cooking) transgression and is d'Oraita. The Sages enacted gezeirot to prevent this inadvertent transgression, creating specific conditions for permitted shehiya.

• Nafka Mina(s)

  The practical ramifications are manifold:
  1. Permitted vs. Forbidden Shehiya: The precise conditions under which food may be left on an oven or stove before Shabbat to continue cooking.
  2. Oven/Fuel Types: Distinctions between kirah, kupach, and tanur, and between fuels like straw, gefet, or wood, which affect the intensity and duration of heat, and thus the likelihood of chittuy.
  3. Modern Applications: How these ancient distinctions translate to contemporary cooking appliances (e.g., slow cookers, electric ovens, hot plates).

• Primary Sources

  • Gemara: Masechet Shabbat 36b-38a (the primary sugya on shehiya and hatmanah).
  • Rambam: Hilchot Shabbat 3:4-5 (codifies the gezeira and its conditions).
  • Rashi: Shabbat 36b s.v. "שמא יחתה" (explains the mechanism of the gezeira).
  • Tur & Shulchan Aruch: Orach Chaim 253 (the halachic codification that Aruch HaShulchan builds upon).
  • Yerushalmi: Masechet Shabbat 3:3 (provides details on oven types and fuels, with some variations noted by Aruch HaShulchan).

Text Snapshot

The Arukh HaShulchan meticulously lays out the historical and technical context crucial for understanding the gezeira.

• Arukh HaShulchan, Orach Chaim 253:26-32

  "כבר נתבאר בתחילת הסעיף הקודם, דמותר להתחיל מלאכה בערב שבת אע"ג דסיומה בשבת, ולכן מותר ליתן קדרה עם תבשיל ע"ג האש קודם שבת סמוך לחשיכה, או בשר בתנור או על גחלים והולכים ומתבשלים בשבת. מ"מ בדברים אלו גזרו חכמים גזירות מפני גזירה שמא יחתה בגחלים בשבת כדי למהר הבישול, דחיתוי גחלים אינו אלא רגע קט, ובהיותו נחפז לאכול ישכח שהוא שבת ויחתה בגחלים, ויעבור על איסור תורה, דעל ידי חיתוי ממהר הבישול והוי מבשל בשבת. ולכן תקנו חכמים סייגים על זה כמו שיתבאר בע"ה."^[1]^ "כיון שיש מחלוקת בפוסקים בענין זה, וגם דרך בישולם היה שונה משלנו, צריך לבאר תחילה דרך בישולם. תנוריהם לא היו פתוחים מן הצד כשלנו, ולא היו גדולים כתנורים שלנו. שלשה מיני תנורים היו להם, כירה קופח ותנור. ובדרך כלל לא היו קבועים בארץ, ופתחם היה למעלה. והיו מסיקים את האש למטה, והלהבה עולה למעלה, והקדרה מונחת על שפתי הכירה או הקופח או התנור, והקדרה תלויה על החלל. הכירה היתה עשויה לשתי קדרות ארוכה וקצרה, ושוה ממעלה וממטה. הקופח גם כן שוה ממעלה וממטה אלא קטן מהכירה ואינו מחזיק אלא קדרה אחת, וכיון דלא היה ארוך היה מחזיק החום יותר מהכירה. התנור גם כן מחזיק קדרה אחת, אלא רחב למטה וצר למעלה, ולכן היה מחזיק החום הרבה יותר מהקופח. וגם היו מסיקים את התנור יותר חזק מהכירה. (עיין רש"י ב"ב כ' ע"א ד"ה ובכירה. ויש קושיא על הטור חו"מ תחילת סימן קנ"ה שמביא מהרשב"ם שהכירה היתה פתוחה מן הצד. וכן הנמוקי יוסף שם מביא כן מהירושלמי דאומר דכירה עשויה כבית השובך. ותימה לי דהפירוש נראה דשוה ממעלה וממטה כמו בית השובך, לאפוקי תנור שצר מלמעלה)."^[2]^ "ההסקה היתה או של תבן וקש הנלקטים מן השדה והיתה אש קלושה מאד ומעט גחלים. או של גפת, שהוא פסולת של זיתים או של שומשמין, גפת של זיתים היתה אש חזקה מאד וגחלים הרבה, וגפת של שומשמין אף שאינו חזק כשל זיתים מ"מ יותר חזק מתבן וקש. וכן עצים היתה אש חזקה וגחלים הרבה. וגם היו מסיקים בגללי בהמה. ירושלמי בתחילת מסכת כירה אומר דגללי בהמה קטנה כגפת ועצים, וגללי בהמה גדולה כתבן וקש. ורמב"ם בפרק ג' כתב להיפך, כמו שנביא לשונו, וצריך לומר שגרסת הירושלמי שלו היתה שונה."^[3]^

• Dikduk/Leshon Nuance

  The language is precise and descriptive.

  1. "מפני גזירה שמא יחתה בגחלים בשבת כדי למהר הבישול": This encapsulates the svara of the gezeira. The fear is not merely heating, but accelerating an ongoing bishul, which is a melacha d'Oraita. The phrase "רגע קט" (a brief moment) underscores the ease of transgression, hence the need for a stringent gezeira.
  2. "כירה קופח ותנור": These are the technical terms for the ancient cooking vessels, each differentiated by size, shape, and heat retention. The Arukh HaShulchan highlights the "שוה ממעלה וממטה" (equal at top and bottom) for kirah and kupach versus the tanur's "רחב למטה וצר למעלה" (wide at bottom, narrow at top), which impacts heat retention. This morphological precision is vital for halachic distinction.
  3. "ותימה לי דהפירוש נראה... לאפוקי תנור שצר מלמעלה": The Arukh HaShulchan's direct expression of temihah (puzzlement) and subsequent attempt at reconciliation regarding the kirah's structure, between Rashi and the Tur/Rashbam/Nimukei Yosef/Yerushalmi, showcases his rigorous lomdus and commitment to harmonizing sources. This isn't just a technical detail; it speaks to the very gezeira itself, as the design of the oven informs the likelihood of chittuy.
  4. "צריך לומר שגרסת הירושלמי שלו היתה שונה": Faced with a direct contradiction between the Yerushalmi and Rambam on fuels, the Arukh HaShulchan posits a difference in girsaot (textual versions), a common and sophisticated approach in lomdus to resolve apparent clashes between great authorities.

Readings

The Arukh HaShulchan's discussion is deeply rooted in the foundational Rishonim, particularly Rashi and Rambam, whose distinct approaches to the sugya inform the entire halachic landscape.

• Rashi on Shabbat 36b

  Rashi, with his characteristic clarity, explains the gezeira of shehiya "שמא יחתה" simply: "דילמא אזיל ומחתה בגחלים להגדיל האור, ונמצא מבשל בשבת."^[4]^ His chiddush lies in emphasizing the direct causal link between stirring coals ("להגדיל האור" - to increase the fire) and bishul ("ונמצא מבשל בשבת" - and thereby cooking on Shabbat). He doesn't dwell on the precise mechanism of bishul vs. hav'ara (kindling) but rather focuses on the practical outcome: accelerating the cooking process. The Arukh HaShulchan, in fact, cites Rashi in Bava Batra 20a^[5]^ to elucidate the physical structure of the kirah, which is crucial for understanding the gezeira's applicability. Rashi's description there, "כירה - עשויה לכסות הגחלים והעפר על גביה, ועל גבי העפר מונחת הקדרה," implies a design where coals are covered, making chittuy less likely. This contrasts with the Arukh HaShulchan's primary understanding of the kirah as a two-pot open stove, necessitating the gerufah v'ketumah (removed/covered coals) conditions. The Aruch HaShulchan's temihah (puzzlement) in our text about the kirah's structure (open top vs. side opening cited by Tur/Rashbam) is a direct engagement with these differing Rashi interpretations and their implications for the gezeira.

• Rambam, Hilchot Shabbat 3:4-5

  Rambam systematically codifies the laws of shehiya, stating, "אסור להשהות תבשיל על גבי כירה שהוסקה בגפת ובעצים או שהוסקה בגללי בהמה גסה, אם אינה גרופה וקטומה, גזירה שמא יחתה."^[6]^ Rambam's chiddush is in his precise categorization of fuels and their implications for shehiya. He differentiates between gefet and wood (strong heat, chittuy likely) and "גללי בהמה גסה" (large animal dung, weaker heat, chittuy less likely, hence needing gerufah v'ketumah). This is where the Arukh HaShulchan notes the apparent contradiction with the Yerushalmi regarding the strength of various animal dung fuels. Rambam's psak on fuels, which the Aruch HaShulchan explicitly challenges based on a textual variant in the Yerushalmi, directly impacts the stringency of the gezeira. For Rambam, the intensity of the fuel dictates the likelihood of chittuy and thus the necessity for gerufah v'ketumah. Furthermore, Rambam's explanation of gerufah v'ketumah — "גרף את הגחלים מתוכה או כסה אותן באפר" (removed the coals from it or covered them with ash)^[7]^ — provides the practical means by which the gezeira is avoided. His method of codification is less about pilpul and more about definitive, actionable halacha, which sometimes requires assuming a particular girsa or svara without explicit debate.

Friction

The Arukh HaShulchan, true to his lomdus spirit, doesn't shy away from highlighting discrepancies and intellectual quandaries within the traditional texts.

• The Kirah Conundrum: Open Top vs. Side Opening

  The most pronounced kushya explicitly raised by the Arukh HaShulchan is the architectural ambiguity of the kirah. He notes: "(עיין רש"י ב"ב כ' ע"א ד"ה ובכירה. ויש קושיא על הטור חו"מ תחילת סימן קנ"ה שמביא מהרשב"ם שהכירה היתה פתוחה מן הצד. וכן הנמוקי יוסף שם מביא כן מהירושלמי דאומר דכירה עשויה כבית השובך. ותימה לי דהפירוש נראה דשוה ממעלה וממטה כמו בית השובך, לאפוקי תנור שצר מלמעלה)."^[8]^
  • Kushya: On one hand, the Arukh HaShulchan's primary description of the kirah (and kupach) is that its opening was "למעלה" (at the top), with the pot suspended over the hollow space. This aligns with a kirah that requires coals to be gerufah v'ketumah to prevent chittuy. However, he cites the Tur, Rashbam, and Nimukei Yosef (on Bava Batra 20a), who, based on the Yerushalmi, suggest the kirah was "פתוחה מן הצד" (opened from the side) and "עשויה כבית השובך" (made like a dovecote). If the kirah opened from the side, how could one "stir coals" in a way that directly accelerates cooking in a pot placed above it? The mechanism of chittuy seems less direct, or perhaps even impossible, if the firebox is distinct and largely sealed from the pot's cooking space. This discrepancy creates a fundamental challenge to understanding the very gezeira of shehiya as applied to the kirah.
  • Terutz (Arukh HaShulchan's attempted reconciliation): The Arukh HaShulchan attempts to reconcile this by suggesting that "בית השובך" (dovecove-like) refers to the kirah's shape – "שוה ממעלה וממטה" (equal at top and bottom) – rather than its opening mechanism or the placement of the pot. He posits that even if the Yerushalmi describes it as a dovecote, this means its consistent width, distinguishing it from the tanur which is narrower at the top. This reading would preserve the understanding of the kirah as an open-top stove where chittuy is a relevant concern.
  • Alternative Terutz (beyond Arukh HaShulchan): One could argue for a diversity of kipot (plural of kupach or perhaps a generic term for small ovens) and kirayot (plural of kirah) in Mishnaic times. Perhaps there were indeed models that opened from the side, and the gezeira would apply differently or not at all to those, or perhaps the Gemara's discussion of chittuy primarily refers to the more common open-top models. The fact that the Arukh HaShulchan is so bothered by this suggests he seeks a unified understanding of the kirah relevant to the shehiya sugya. The svara that "שוה ממעלה וממטה" is a crucial distinction to differentiate from a tanur (which traps heat more effectively due to its shape) is important for the gradation of gezeirot.

Intertext

The sugya of shehiya and yichutei b'gechalim is a classic example of rabbinic siyag l'Torah (fence around the Torah), echoing principles seen across halachic literature.

• Parallels in Gezeirot: Shehiya and Hatmanah

  The gezeira against yichutei b'gechalim is intrinsically linked to the broader sugya of shehiya (allowing food to remain on the fire) and hatmanah (insulating food). The Gemara (Shabbat 36b) introduces the gezeira of shehiya with "מפני מה אמרו אין שוהין על גבי כירה... שמא יחתה בגחלים."^[9]^ This is the very foundation of our sugya. Similarly, the gezeira of hatmanah is also rooted in the concern for bishul or hav'ara, with the concern of "שמא ירבה גחלים" (lest one increase the coals) or "יוסיף הבל" (add heat).^[10]^ Both gezeirot illustrate the rabbinic imperative to prevent even indirect or unintentional transgressions of melachot on Shabbat by regulating pre-Shabbat actions. The Arukh HaShulchan's detailed analysis of oven types and fuels serves to differentiate the applicability of these gezeirot based on the practical likelihood of transgression.

• Modern Application: Slow Cookers and Electric Ovens

  The detailed analysis of ancient cooking methods by the Arukh HaShulchan provides the halachic framework for assessing modern appliances. Contemporary poskim grapple with applying the principles of shehiya and chazara (returning food to the fire) to electric slow cookers, hot plates, and conventional ovens. For instance, Rav Moshe Feinstein, in Iggerot Moshe, Orach Chaim, Vol. 4, Siman 74, Ot 2, discusses the permissibility of leaving food in an electric oven or slow cooker before Shabbat. He analyzes whether these appliances simulate a kirah gerufah v'ketumah (removed/covered coals) or an open kirah. His psak often hinges on whether the heat source is directly accessible for manipulation (like stirring coals) and whether increasing the heat constitutes bishul or hav'ara. The Arukh HaShulchan's emphasis on the matzui (common reality) of the cooking method directly informs Rav Moshe's psak, requiring a careful assessment of the technical specifics of modern appliances to determine the applicability of the ancient gezeira.

Psak/Practice

The Arukh HaShulchan's meticulous exposition, while rich in lomdus, ultimately aims to clarify practical halacha.

The core psak deriving from this sugya is codified in Shulchan Aruch Orach Chaim 253:1: "אין שוהין על גבי כירה שהוסקה בגפת ובעצים אלא אם כן גרופה וקטומה, גזירה שמא יחתה."^[11]^ The Arukh HaShulchan's contribution is to provide the comprehensive background for why this halacha is so and how to understand its distinctions.

• Practical Application

  1. Understanding the "Why": By detailing the types of ovens and fuels, the Arukh HaShulchan allows the reader to grasp the svara behind the gezeira. A fuel that produces strong, long-lasting coals (like gefet or wood) or an oven that retains heat effectively (like a tanur) makes chittuy more tempting and effective, hence requiring gerufah v'ketumah. Weaker fuels (straw/stubble) or less efficient ovens are less problematic.
  2. Meta-Psak Heuristics: His repeated emphasis on "צריך לבאר תחילה דרך בישולם" (one must first explain their method of cooking)^[12]^ and his wrestling with conflicting descriptions of the kirah and fuel strengths is a crucial meta-psak heuristic. It teaches that understanding the metziut (reality/context) of the original takana (rabbinic enactment) is paramount for its correct application, especially when dealing with technological shifts. This means that a posek today must thoroughly understand how a modern appliance functions (e.g., heat source, control mechanism, heat retention) to determine if it falls under the rubric of kirah or tanur, and thus if chittuy is a concern.
  3. Modern Halacha: Generally, modern electric ovens and slow cookers with thermostats are considered permissible for shehiya, as the heat source is not directly manipulable in a way that constitutes chittuy b'gechalim. The common understanding is that "increasing the flame" on a modern electric stove or oven does not equate to the melacha of bishul in the same way that stirring coals to intensify heat does, as the primary act of hav'ara (kindling) has already occurred and the thermostat regulates the heat. However, specific rulings may vary, and a shimur (guarding) mechanism, like a plata (hot plate) where the heat is fixed, is often preferred for shehiya.

Takeaway

The Arukh HaShulchan's deep dive into the gezeira of yichutei b'gechalim exemplifies the dynamic interplay between historical metziut and halachic reasoning, offering a robust framework for applying ancient decrees to evolving technologies. The rigor demanded by this sugya underscores the enduring relevance of chazal's protective fences around Shabbat.

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^[1]^ Arukh HaShulchan, Orach Chaim 253:26. ^[2]^ Arukh HaShulchan, Orach Chaim 253:27. ^[3]^ Arukh HaShulchan, Orach Chaim 253:28. ^[4]^ Rashi, Shabbat 36b s.v. "שמא יחתה". ^[5]^ Rashi, Bava Batra 20a s.v. "ובכירה". ^[6]^ Rambam, Hilchot Shabbat 3:4. ^[7]^ Rambam, Hilchot Shabbat 3:4. ^[8]^ Arukh HaShulchan, Orach Chaim 253:27. ^[9]^ Babylonian Talmud, Shabbat 36b. ^[10]^ Babylonian Talmud, Shabbat 36b. ^[11]^ Shulchan Aruch, Orach Chaim 253:1. ^[12]^ Arukh HaShulchan, Orach Chaim 253:27.