Wineskins and jugs belonging to gentiles, which have a Jew’s wine contained in them, are prohibited to Jews, and their prohibition is that of an item from which deriving benefit is prohibited; this is the statement of Rabbi Meir. And the Rabbis say: Their prohibition is not that of an item from which deriving benefit is prohibited. Residual grape seeds and grape skins belonging to gentiles, which are left behind after the grapes are crushed for wine, are prohibited, and their prohibition is that of an item from which deriving benefit is prohibited; this is the statement of Rabbi Meir. And the Rabbis say: Moist grape residues are prohibited, but dry residues are permitted.

Is it permitted to put brine or fish stew in the wineskins ab initio, or is the substance permitted only after the fact? The Gemara suggests: Come and hear a resolution to the dilemma, as Rav Zevid bar Oshaya teaches: With regard to one who purchases jugs from gentiles, if they are new, he may place wine in them, and if they are old, he may place brine and fish stew in them ab initio. . . . The Gemara discusses the halakha with regard to beer kept in a prohibited vessel. A dilemma was raised before the Sages: What is the halakha with regard to putting beer in it (i.e., a jug that was rendered impermissible and not properly cleansed)? Rav Naḥman and Rav Yehuda prohibited this, and Rava permitted it. The Gemara notes that Ravina permitted Rav Ḥiyya, son of Rav Yitzḥak, to pour beer into such a jug, but he went and poured wine into it instead. And even so, Ravina was not concerned over the matter, as he said to himself: It is merely an incidental occurrence. The fact that Rav Ḥiyya mistakenly poured wine into the jug instead of beer is not a reason to prohibit filling it with beer in general.

If a Jew puts wine in a vessel that became prohibited due to its having been used to store idolators' wine, the wine is prohibited for drinking but is permitted be benefited from - even if [the vessel was dry] - so long as twelve months have not passed. REMA: And if it is a vessel used for preserving, it becomes prohibited immediately. And if it is a vessel not used for preserving - and is dry - it does not become prohibited until the Jew's wine remains in it for 24 hours. And if the wine was mixed with a jug of water, then, if there was six-times as much water as the volume of the surface of the barrel, the wine is even permitted to be drunk. REMA: And see above, siman 134, that even without any water, it is nullified in sixty; and with respect to vessels that became prohibited because of idolatrous wine, there is no difference whether they are a day old or not....

It is permitted to put water, beer, or other drinks into a vessel that became prohibited due to wine of idolators, provided that drops of wine on the surface of the vessel are first washed. And it is likewise permitted to salt things in such vessels....

... It is permitted to place beer, fish brine, or fish oil in these containers immediately. None of these [purging processes] are necessary. After one placed fish brine or fish oil in them, one may place wine in them, for the salt [in the fish brine or fat] will burn out [any residue of wine].

Even though it is prohibited to put wine in a vessel that a non-Jew used for wine, it is permissible to put in them water, beer, and all other types of drinks because the wine diminishes them ...

(8) ... Rema- Everything that's prohibited in our days is nullified in 60x more. Except for chametz on Pesach and wine that was libated for an idol as is explained in the proper place. That which everything is nullified in 60x more, is as long as it doesn't add taste to the dish. But if it adds taste to the dish, and it's prohibited because of it's self (As opposed to if it's only prohibited based on the principle of חתיכה עצמה נעשית נבלה, see siman 92 for details), then even if there's 1000x more, it will not be nullified as long as one can discern the taste. Therefore salt and spices from things that are made for giving taste, if they are prohibited because of themselves, they are not nullified when there's 60x more.