Daily Mishnah · Expert – Beit Midrash Analysis · Bite-Sized

Mishnah Kelim 3:1-2

Bite-SizedExpert – Beit Midrash AnalysisMay 16, 2026

Sugya Map: The Ontology of the Vessel

  • Issue: Defining the threshold of "vessel-hood" (tachat k’li) for earthen vessels via hole-size (shiur nekavim).
  • Nafka Mina: Does a hole render a vessel tahor (clean/non-receptive) or merely invalidate it from tzamid patil (airtight seal)?
  • Primary Sources: Mishnah Kelim 3:1-2; Rash MiShantz ad loc.; Tosefta Kelim Bava Metzia 2:1.

Text Snapshot

  • Mishnah 3:1: "שיעורו בזיתים" (Its measure is [via] olives).
  • Nuance: The Mishnah employs a functional taxonomy—food vs. liquid. The dikduk of "מטילין אותו לחומרו" (we apply the stricter measure) suggests that k’li status is not a binary state but a sliding scale of utility. If a vessel serves two masters (food/liquid), the law adopts the stricter criteria to force a state of "cleanliness" (i.e., the vessel is disqualified as a vessel).

Readings

  • Rash MiShantz: Argues that the stringency of "olives" for a dual-purpose vessel is a mechanism to declare it tahor (as if shattered). He explicitly links this to Shabbat 95b, noting that once the vessel is punctured to the measure of an olive, it loses the torat k’li (law of a vessel) entirely.
  • Rashash: Adds a crucial distinction: the measure for taharah (cessation of susceptibility) does not necessarily imply the cessation of tum’ah via contact. The vessel remains "unclean" by touch due to yad (handle/part of the vessel) even if the airspace is no longer "contained."

Friction

  • Kushya: If the vessel is broken, why distinguish between the measure of the hole? Why isn't a hole simply a hole?
  • Terutz: The k’li is defined by its toch (internal volume). As Rambam notes (3:1:1), the measure is the point at which the vessel’s utility as a container is effectively nullified. The "stringency" is a legal fiction: we treat the vessel as "intact" (unclean) for as long as it could hold, even if partially compromised.

Intertext

  • Shabbat 95b: Discusses the threshold of k’li for hotza’ah (carrying).
  • Niddah 49b: The Gemara probes the empirical test for "liquid-retention" (kones mashkeh), reinforcing that the Mishnaic measure is not arbitrary but tied to physical capacity.

Psak/Practice

The heuristic is functionalism: tum'ah follows utility. If the repair (pitch) restores the vessel's capacity to hold a revi’it (as in the case of the potsherd), the legal entity of the "vessel" resurrects. Halacha ignores the physical "brokenness" if the "utility" is restored.

Takeaway

Status is defined by function: A vessel is only a vessel so long as it serves its intended volume; once a hole exceeds that utility, the law treats the object as if it never existed.