Tohoros 3:2-3

Tohoros 3:2

Rabbi Meir says that oil is always unclean in the first degree (i.e., even if it congeals); the Sages say that the same is true of honey; Rabbi Shimon Shezuri says that it’s also true of wine. Let’s say that a mass of olives fell into a heated oven. If the olives were exactly the volume of an egg, the oven remains pure; if more than that, the oven is rendered unclean because as soon as the first drop comes out, it’s rendered unclean through contact with the volume of an egg. If the olives were separated, the oven remains clean even if there was a seah of them (about 17.5 gallons).

Tohoros 3:3

Let’s say that someone who was unclean through corpse impurity squeezed olives or grapes. If their volume was exactly that of an egg, the juice is clean so long as he doesn’t touch the place where the liquid is; more than that, the juice is unclean because as soon as the first drop came out, it was rendered unclean through contact with the volume of an egg. If the one who squeezed the produce was a zav or a zavah (a man or a woman who experienced a particular type of emission), the juice is unclean even if there was only one berry because as soon as the first drop came out, it was rendered unclean through carrying. If a zav milked a goat, the milk is unclean because as soon as the first drop came out, it was rendered unclean through carrying.