3,474. Produce to Which Demai Doesn't Apply

Hilchos Maaser 13:4

If we know that produce was grown in land that was occupied by Jews who returned from Babylonia, the rules of demai apply to it even if the produce is currently in Syria (i.e., land annexed to Israel proper) or land that was only inhabited by Jews who came from Egypt, with the result that terumas maaser and second tithe must be taken from it. Therefore, if a species of fig only grows in the land of the Jews who returned from Babylonia, it must be tithed like demai in all of Israel and Syria; the same is true of large dates, straight carobs, very white rice and large cumin (all of which are Israeli species), as well as to all comparable species.

Hilchos Maaser 13:5

If donkey drivers bring produce to Tyre, the rules of demai apply because we assume that it came from the nearby land, which was occupied by Jews who returned from Babylonia, though we are not concerned about rice. Rather, all the rice in other lands that border land that was occupied by the Jews who returned from Babylonia is exempt from the stringencies of demai unless it’s clearly a species exclusive to Israel, as per the previous halacha.