Study Eruvin folio 99B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
And the same applies in a winepress. This winepress cannot be a private domain, as the first clause of the Mishnah already dealt with a private domain. The winepress must therefore be a karmelit, which proves that it is prohibited to drink from a karmelit while standing in a public domain.
And Rava said: This proof is not conclusive, as the words: The same applies in a winepress, do not refer to Shabbat but to the matter of the halakhot of tithes, as explained below. And similarly, Rav Sheshet said that the statement that the same applies in a winepress refers to the matter of tithe
The Talmud clarifies this statement. As we learned in a Mishnah: One may drink grape juice directly on the winepress ab initio without tithing, whether the juice was diluted with hot water, even though he will then be unable to return the leftover wine to the press, as it would ruin all the wine in
And the Rabbis say: There is a distinction between these two cases. When the juice is diluted with hot water, since one cannot return what is left of the juice to the press, he is obligated to tithe it, as this drinking is like fixed drinking for which one is obligated to tithe. However, when the j
Mishnah: A person standing in a public domain on Shabbat may catch water in a vessel from a gutter running along the side of a roof, if it is less than 10 handbreadths off the ground, which is part of the public domain. And from a pipe that protrudes from the roof, one may drink in any manner, i.e