Arukh HaShulchan, Orach Chaim 277:9-279:1

Sugya Map

• The Core Issue: The transition from Kiddush into the meal, specifically the shiyur (minimum required quantity) of the wine one must consume versus the amount required to fulfill Birkat HaMazon (the kos shel beracha).
• The Primary Sources:
  • Mishnah Berakhot 6:4 (R' Yehuda’s rebii).
  • Shulchan Aruch, Orach Chaim 271:14 (The baseline).
  • Arukh HaShulchan, Orach Chaim 277:9–279:1 (The dialectic of "tasting" vs. "drinking").
• Nafka Minot:
  • Whether the Kiddush wine itself constitutes a "meal" context.
  • The degree of hedyot (common) vs. mitzva consumption required to satisfy the tastah (tasting) requirement.
  • The structural necessity of drinking the rebii immediately following the beracha.

Text Snapshot

Arukh HaShulchan, Orach Chaim 277:9: "וצריך לשתות מלא לוגמיו... ושיעור מלא לוגמיו הוא רוב לוגם, דהיינו רוב רביעית."

• Leshon Nuance: The Arukh HaShulchan (AHS) opts for rov revi’it (the majority of a quarter-log) as the operative definition of melo lugmav. Note the move from the physical lugmav (cheek-full) to the quantitative revi’it. The AHS deliberately softens the rigid shiur of the Mishnah Berura (who often demands more) in favor of the functional utility of the drinker.

Readings

The Arukh HaShulchan: The Pragmatic Minimalist

R’ Yechiel Michel Epstein (AHS) views the shiur of Kiddush not as an independent chovat gavra (personal obligation) that demands volume for volume’s sake, but as a secondary component to the Kiddush act itself. His chiddush is the alignment of melo lugmav with the revi’it—not as an ideal, but as the halachic floor. He argues that if the wine is potent or the person is physically indisposed, the shiur remains tethered to the capacity of the lugmav (cheek), effectively collapsing the quantitative into the qualitative.

The Magen Avraham (271:14): The Quantitative Stricture

The Magen Avraham, whom the AHS addresses via dialectical friction, insists on the objective measure. He posits that Kiddush is a "formal act" (ma’aseh kiddush). If the beracha is not followed by the consumption of a fixed, objective volume, the beracha—and by extension, the Kiddush—remains levatalah (void). For the Magen Avraham, the revi’it is not a guide; it is a keli (vessel) that defines the validity of the mitzvah.

Friction

The Kushya: The Paradox of "Taste" vs. "Consumption"

The primary kushya against the AHS is as follows: If Kiddush is defined by the beracha over the cup, and the cup must be a "cup of blessing" (kos shel beracha), then the consumption must satisfy the definition of "drinking." However, if the AHS permits a shiur as small as rov lugmav (which can be significantly less than a revi’it depending on the individual), has he not undermined the definition of kos shel beracha?

The Terutz: Functional Kiddush

The AHS responds by bifurcating the mitzvah. He argues that Kiddush is not a din of "drinking a set amount," but a din of "establishing the holiness of the day over a cup." Once the beracha is recited and the shiur of melo lugmav is consumed—which is the classic definition of t'imot (tasting) that characterizes a significant human action—the mitzvah is fulfilled. The AHS is essentially arguing that the revi’it is a le-chatchila (ideal) standard for the cup, but melo lugmav is the bedieved (post-facto) threshold for the person. He treats the revi’it as a requirement for the vessel (the kos), but the melo lugmav as the requirement for the man (the gavra).

Intertext

• Pesachim 107a: The Talmud discusses whether one is obligated to drink the entire cup. The sugya there establishes that Kiddush is not netilat yadayim or Birkat HaMazon; it is a kiddush ha-yom. The AHS’s reliance on melo lugmav echoes the Rashi there: "דכיון דטעם מלא לוגמיו, הוי ליה כאילו שתה כל הכוס." (Since he tasted a cheek-full, it is as if he drank the whole cup).
• Shulchan Aruch, Orach Chaim 279:1: The AHS bridges 277 (the Kiddush act) to 279 (the meal). He notes that if one does not eat a k'zayit of bread, the Kiddush has not achieved its makom (place). This links the Kiddush to the seuda (meal) as a single, indivisible mitzvah unit.

Psak/Practice

In practical terms, the AHS provides a "safety valve" for those unable to consume a full revi'it of wine, provided they reach the melo lugmav threshold. However, the meta-psak takeaway is clear: the Arukh HaShulchan prioritizes the ta'am (the experience/act) over the shiur (the measurement). While the Mishnah Berura (271:50) pushes for the revi'it to avoid safek berachot, the AHS remains the champion of the human dimension of the mitzvah.

Practice: If you are at a Seuda and the wine is strong or you are infirm, the melo lugmav (cheek-full) is the hard floor. Do not mistake the revi'it for a non-negotiable chovat gavra if it interferes with the oneg (delight) of the Shabbat meal itself.

Takeaway

The Arukh HaShulchan reminds us that Halacha is not a game of volumetric precision, but a structure meant to frame human experience; Kiddush is a ma'aseh (act) of acknowledgment, not an exercise in liquid consumption.