Tohoros 10:7-8
Tohoros 10:7
If a person is emptying out the wine pit and a vermin (sheretz) is found in the first jar filled, all the other jars are ruled unclean. If it was found in the last jar filled, then only that jar is ruled unclean; the others remain clean. This is the case when he fills each jar directly from the pit but if it he ladled into the jars with a pitcher and a vermin is found in one of the jars, then only that jar is unclean. This is only the case when he examined the jars before filling them but he didn’t cover them, or he covered the jars before filling them but he didn’t examine them. If he both examined and covered the jars and a vermin is found in a jar, in the pit or in the ladling pitcher, then everything is ruled unclean.
Tohoros 10:8
The space between the rollers (of a wine press) and the grape skins (to be rolled) is considered a public domain vis-à-vis the laws of ritual purity. A vineyard in front of the harvesters is considered a private domain, while behind the harvesters is considered a public domain. This is the case when the public enters the vineyard at one end and exits at the other (i.e., they use it as a shortcut). The utensils of an olive press, a wine press and a basket press (used to hold pressed olives), if made of wood, need only be dried in order to purify them. If they’re made of reed grass, they must be left for twelve months or purged with hot water. Rabbi Yosi says that it’s sufficient to put them in the current of a river.