would pour wine which he sold to gentiles into their wineskins and go and ferry them over the crossing, and they would give him the jugs in which the wine had been stored as payment. The jugs that the wine had been stored in were included in the sale, and the gentiles would pay him by returning the jugs. People came and told Abaye that Rav Ika was accepting a wage from the wine of gentiles. Abaye said to them: When he labored, he labored with permitted wine, since he was pouring kosher wine into the wineskins, and only subsequently the wine was rendered forbidden by being in the possession of the gentiles.

The Gemara asks: But doesn’t he desire the preservation of the wine in the wineskins in that the wineskins should not be torn, as he would then need to return the jugs he received in payment? The Gemara answers: It is a case where he stipulated with the gentile purchasers that even if the wineskins were to tear it would be at their expense and not his, and he would keep the jugs in any event. Alternatively, it is a case where the gentile purchasers brought barrels [perisdakei] with them, so that they could pour the wine into them should the wineskins be torn.

The Gemara asks: But didn’t he ferry them over the crossing, which is laboring with forbidden wine? The Gemara answers: This is not a case where he was ferrying the wine over the crossing himself, as he made an arrangement with the ferrymen and said to the ferryman initially that the latter would ferry the buyers and the barrels without payment. Alternatively, it was a case where he held special signal knots in collusion with the ferryman that he would ferry these people without payment. In any event, he was not laboring for them himself.

MISHNA: In the case of wine used for a libation that fell on grapes, one rinses them and they are permitted. But if the grapes were cracked, they are forbidden. In a case where the wine fell on figs or on dates, if there is sufficient wine in them to impart flavor, they are forbidden. And there was an incident involving Boethus ben Zunen, who transported dried figs in a ship, and a barrel of wine used for a libation broke and fell on them, and he asked the Sages as to the halakha, and the Sages deemed the figs permitted.

This is the principle: Anything that benefits from a forbidden item imparting flavor to it, i.e., the forbidden item contributes a positive taste to it, is forbidden, and anything that does not benefit from a forbidden item imparting flavor to it is permitted, such as forbidden vinegar that fell onto split beans, as the flavor imparted by the vinegar does not enhance the taste of the beans.

GEMARA: The Gemara asks with regard to the incident related in the mishna: Was an incident cited to contradict the halakha stated immediately before it? The Gemara answers: The mishna is incomplete, and this is what it is teaching: If the wine imparts flavor to the detriment of the mixture, the food is permitted. And there was also an incident involving Boethus ben Zunen, who was transporting dried figs in a ship, and a barrel of wine used for a libation broke and fell on them, and the incident came before the Sages, and the Sages deemed the figs permitted because the flavor given by the wine did not enhance their taste but was instead to their detriment.

The Gemara relates: There was an incident involving a certain heap of wheat upon which a barrel of wine used for a libation fell. Rava permitted selling it to gentiles, as deriving benefit from it is not prohibited.

Rabba bar Livai raised an objection to Rava from a baraita: With regard to a garment in which diverse kinds, a prohibited mixture of wool and linen, have been lost, i.e., it is known that linen fibers became mixed into a woolen garment but they cannot be detected and removed, one may not sell the garment to a gentile, nor fashion it into a saddlecloth for a donkey, but one may make it into shrouds for a corpse with no one to bury it [met mitzva], as a corpse is not obligated in the observance of mitzvot.

Rabba bar Livai asked: What is the reason that it is not permitted to sell it to a gentile? Perhaps he will come to sell it to a Jew, who will not know that it is forbidden. Here too, with regard to the wheat, the gentile purchasers may come to sell it to a Jew, who is prohibited from consuming it.

Rava then retracted his decision and permitted grinding the wheat and baking bread with it and selling it to gentiles not in the presence of Jews. In this manner, Jews will not be likely to buy bread from the gentiles, as the bread of gentiles is forbidden to Jews.

We learned in the mishna: In the case of wine used for a libation that fell on grapes, one rinses them and they are permitted. But if the grapes were cracked, they are forbidden. The Gemara infers: If the grapes are cracked, they are forbidden, but grapes that are not cracked are not forbidden. If so, what is the cause for concern in the case where wine spilled on the wheat? It should be sufficient to rinse the wheat. Rav Pappa said: Wheat is different, since, because of its slits, its status is similar to that of grapes that are cracked.