3,264. Taking Terumah From Ritually Clean Produce for Ritually Unclean Produce

Terumos 5:6

Terumah is taken from a winepress once those who tread the grapes have walked criss-cross over the grapes. Terumah is taken from olives once the beam of the olive press has been placed on them.

Terumos 5:7

We don’t take terumah from ritually clean produce for ritually unclean produce, but if one did so, what he took is valid terumah. It is a law transmitted to Moshe at Sinai that if part of a cake of dried figs is rendered unclean, one may take terumah from the clean part for the unclean part, even at the outset. This is true not just of a cake of dried figs, which is a single mass, but even of bunches of vegetables and piles of wheat: if part of one of these things is rendered unclean, one may take terumah from the clean part for the unclean part. However, if there are two cakes of dried figs, two bunches of vegetables or two piles of wheat – a clean one and an adjacent unclean one – one may not take terumah from the clean for the unclean at the outset. One may take terumas maaser from ritually clean produce for ritually unclean produce at the outset, as per Numbers 18:29: “Its sacred part from it,” i.e., one may take the sacred part that is in it.