Mishneh Torah, Heave Offerings 13-15

Sugya Map: The Mechanics of Terumah Nullification

• Core Issue: Does the nullification of Terumah (1:100 ratio) function as a mathematical fact or a legal status?
• Nafka Mina: Can one intentionally create a mixture to nullify Terumah? Does the Terumah property vanish, or does it merely become "insignificant" while remaining a financial claim for the Kohen?
• Primary Sources: Mishnah Terumot 4:7, Numbers 18:29, Rambam, Hilchot Terumot 13:1-3, Rambam, Hilchot Ma’achalot Assurot 15:16.

Text Snapshot

• "When a se'ah of terumah falls into 100 se'ah of ordinary produce... he should separate one se'ah and give it to the priest" Hilchot Terumot 13:1.
• Leshon nuance: The Rambam insists that even though the Terumah is nullified regarding the prohibition of consumption, it is not erased regarding the owner's obligation to the Priest. It is a "financial" nullification, not a metaphysical one.

Readings

• Rambam (Hilchot Terumot 13:1): Terumah is nullified by a ratio of 100:1, but the Kohen retains a proprietary claim. The mixture is "nullified" for eating, but the specific se'ah extracted acts as a "payment" for the priest.
• Ra’avad (ad loc.): Argues against the Rambam regarding specific sequences of adding/removing Terumah. He emphasizes that if the mixture reaches a state where Terumah constitutes a majority (even if only momentarily), the miduma status is fixed and cannot be undone by subsequent dilution.

Friction

• Kushya: If the Terumah is truly "nullified" (batel), why must we perform an act of extraction to give to the Kohen? If it’s gone, it’s gone.
• Terutz: The nullification is halachic (it permits the rest of the mixture), but the mamon (monetary) aspect remains. The Kohen owns a portion of the pile. The extraction is not "fixing" the mixture, but fulfilling a debt obligation.

Intertext

• Compare with Shulchan Aruch, Yoreh De'ah 99:1, where the Rama emphasizes stringency regarding the inclusion of "waste" (bran) in the 100:1 ratio, reflecting a more cautious approach to mathematical nullification than the Rambam’s.

Psak/Practice

In practice, Terumah (outside Israel) is Rabbinic, allowing for bitul (nullification) even l’chatchilah (intentionally) Hilchot Terumot 13:11. However, one should not rely on this as a standard mechanism for food management; it is a safety net for accidental contamination.

Takeaway

Nullification of Terumah is a legal "reset button" for the consumer, but it never absolves the owner of the financial debt owed to the Kehunah.