Mishneh Torah, Blessings 6

Sugya Map: The Mechanics of Netilat Yadayim

• Issue: The parameters of netilat yadayim for chulin (non-sacred food) and the tension between "ritual purity" vs. "rabbinic habituation."
• Nafka Mina: Whether a revi'it is required for each hand, the validity of "intervening substances" (chatzitzah), and the status of "water used for work" (mayim she-niftzelu).
• Primary Sources: Mishneh Torah, Hilchot Berachot 6; Chulin 106a; Shulchan Aruch, Orach Chayim 158-161.

Text Snapshot

• MT 6:1: "Anyone who eats bread... must wash his hands before and after... This applies even when the bread one eats is not sacred food."
• Nuance: Rambam emphasizes that this is a ritual act, not hygiene. The dikduk in the term netilah (lit. "lifting") implies a kli (vessel) is essential, distinguishing it from mere rinsing (see Berachot 9, Rabbenu Asher).

Readings: The Conceptual Friction

• Rambam (MT 6:10): Requires a revi'it (approx. 86cc) for each pair of hands, poured in one continuous stream. He insists on the "power of a person" (koach gavra).
• Ra'avad (ad loc): Critiques the Rambam’s stringency, arguing that a revi'it suffices for multiple people if poured correctly. The friction lies in whether netilah mirrors the ki'or (Temple basin) as a strict ritual performance or functions as a safeguard (gezeirah) for terumah.

Friction: The Revi'it Problem

• Kushya: If the mandate for chulin is merely a mnemonic for terumah (Chulin 106a), why does the Rambam enforce such precise mikvah-like standards (vessels, revi'it, chatzitzah)?
• Terutz: The Rambam maintains that once the Sages enacted a gezeirah, it assumes the full legal structure of the original purity laws. As the Kessef Mishneh notes, netilah is not "symbolic"; it is the actualization of a Rabbinic law that demands adherence to the mechanics of the ki'or.

Psak/Practice

The Shulchan Aruch (OC 160:13) adopts the more lenient view regarding the revi'it, allowing one vessel to serve multiple people, moving away from the Rambam's strict individual revi'it requirement. However, the requirement for a kli and the prohibition of chatzitzah remain absolute.

Takeaway

Netilat Yadayim is not a hygiene ritual but a "liturgy of the hands." Even if the Temple is gone, the precision of the kli and the revi'it serves as an active, daily bridge to the avodah of the Kohanim.