Arukh HaShulchan, Orach Chaim 271:13-19

Sugya Map: The Ontological Status of the Cup of Kiddush

• Issue: Does the kos (cup) of Kiddush function merely as a vessel for the wine, or is it a cheftza (object) integral to the mitzvah of Kiddush haYom?
• Nafka Minot:
  • Pgam (sipping from the cup): Does the psul of pgam invalidate the wine’s status as "kos" or the wine’s status as a drink?
  • Kli (vessel): Does the vessel require hachshara (rinsing) if it is clean?
  • Kiddush vs. Havdalah: Is the requirement for a "full" cup (kos malei) identical in both?
• Primary Sources:
  • Pesachim 108b (the requirement for kos).
  • SA Orach Chaim 271:13-19.
  • Arukh HaShulchan (AH), OC 271:13-19.

Text Snapshot

"צריך שיהיה הכוס שלם... ואם שתה ממנו, אפילו כלשהו, פסול... וצריך להדיחו מבפנים ומבחוץ... ואם הוא נקי, אין צריך הדחה." (AH, OC 271:13, 17)

Nuance: Note the AH’s insistence on "שלם" (complete/whole). The lashon implies that the integrity of the object—not just the volume of the liquid—is the t’nai. When the AH says "ואם שתה ממנו... פסול," he is not merely discussing the volume of the wine (which might be shiyurei kos), but the pgam of the vessel itself. He pivots between the hefched (the wine) and the kli (the vessel) with surgical precision.

Readings

The Rashba’s Functionalism

The Rashba (Responsa 1:194) posits that the kos is a t’nai in the act of Kiddush itself. The cup is not a passive carrier; it is the "throne" of the sanctification. Therefore, any pgam (blemish) is not merely a matter of hygiene, but an ontological disqualification. For the Rashba, the psul of pgam is that the wine is now pegumah (defective), rendering it unfit for a king’s table—and if it is not fit for a king, it cannot house the sanctity of the Sabbath.

The Arukh HaShulchan’s Realism

R’ Yechiel Michel Epstein (AH) takes a significantly more pragmatic, derech ha-teva approach. Unlike the Magen Avraham (271:22), who hyper-focuses on the k’dei revi’it and the precise moment the cup is "ruined," the AH contextualizes the hachshara of the cup. His chiddush is the distinction between a dirty cup and a p’gum cup. He argues that the rinsing (hadacha) is only required if there is visible residue. If the cup is clean, the requirement for hadacha evaporates. He views the halacha not as an abstract structure of cheftza, but as a reflection of kavod (honor). If the cup is clean, it is honorable; if it is honorable, it is a kos.

Friction

The Kushya: The Paradox of the "Empty" Cup

The strongest challenge to the AH’s position comes from the Mishnah Berurah (271:43), who leans into the Pri Megadim. The MB suggests that even if the cup is clean, there is a mitzvah to rinse it because the hadacha is a formal act of preparation for the kos. If the AH is correct—that cleanliness is the goal—why would the poskim insist on rinsing a glass that is already spotless?

The Terutz: Intentionality vs. Hygiene

The AH would likely respond that the poskim who demand rinsing regardless of state are conflating hadacha (washing) with sh’tifa (a ritual act). The AH’s brilliance is his insistence on le-ma’aseh—if the ta’am of the requirement is kavod, then the sh’tifa is an instrument, not the end. If the kli is already clean, the takkanat chachamim is satisfied. The "friction" here is between a formalist reading (where the action is the Mitzvah) and the AH’s realist reading (where the state of the kli is the Mitzvah). The AH refuses to turn a domestic necessity into a mystical rite, stripping away the chumra where the ta’am (reason) is absent.

Intertext

• Tanakh/Midrash: Vayikra Rabba 1:15 notes the importance of "vessels of silver and gold" in the Mishkan. The AH’s insistence on the kos being shalem (whole/perfect) echoes the requirement for tamim (unblemished) offerings. Just as the korban requires physical integrity, the kos of Kiddush—the korban of the home—requires the integrity of the kli.
• SA Yoreh De’ah 116: The laws of ta’am k’ikar (flavor being the essence) parallel the pgam discussion. Just as we worry about the flavor being "ruined" in kashrut, the AH worries about the flavor being "ruined" in Kiddush. Both systems treat the interaction between the kli and the liquid as a delicate, legally sensitive, and flavor-dependent relationship.

Psak/Practice

In practical application, the AH provides a crucial heiter (leniency) for the modern home. If one has a crystal-clear cup, one need not undergo a ritual rinse; the standard of kavod is met. However, the psak remains firm on the "whole" aspect: the cup must not be chipped or cracked. The AH shifts the focus from the ritualization of the process (the rinse) to the integrity of the object (the cup). In a meta-halachic sense, he teaches that we should focus on the quality of our vessels (the kli) rather than the obsessive repetition of preparatory acts.

Takeaway

The kos of Kiddush is not a ritualized obstacle course; it is an act of honoring the day. If the vessel is clean and whole, the sanctification is ready to be poured.