Gravy, bean stew, and milk, when they are liquid [enough] to moisten, they are beginning level [of tumah]. [If] they congeal, they are shenis. [If] they dissolved again, [if their size is] exactly an egg’s volume, [they are] tahor. [If they consist of] more than an egg’s volume, [they are] tamei, for as soon as the first drop emerges, it is rendered tamei by an egg’s volume [of food].

R’ Meir says: Oil is always beginning level [of tumah]. And the Sages say: Even honey. R’ Shimon Shezuri says: Even wine.  [Regarding] a mass of olives which fell into an oven and [the oven] was kindled, [if the mass consists of] exactly an egg’s volume [of olives], [the oven] is tahor. [If the mass consists of] more than an egg’s volume [of olives], [the oven] is tamei, for as soon as the first drop [of oil] emerges, it is rendered tamei by an egg’s volume [of food]. If [the olives] were separate, even if they con-sist of a se’ah, [the oven] is tahor.

[Regarding] one contaminated with corpse tumah who squeezed olives or grapes, [if the olives or grapes consist of] exactly an egg’s volume, [the extracted liquid] is tahor, provided that he does not touch the place of the liquid. [If the grapes or olives con-sist of] more than an egg’s volume, [the juice] is tamei, since as soon as the first drop emerges, it is rendered tamei by an egg’s volume [of “food”]. If he was a zav or a zavah, even [if he squeezed only] a single fruit, [the liquid] is tamei, for as soon as the first drop emerges, it is rendered tamei through being carried [by the zav or zavah].  [Regarding] a zav who milked a goat, the milk is tamei, for as soon as the first drop emerges, it is rendered tamei through being carried [by the zav].

[Regarding] an egg’s volume of food that one placed in the sun and it shrank, and similarly an olive’s volume of a corpse, an ol-ive’s volume of an animal carcass, or a lentil’s volume of a sheretz, [and] an olive’s volume of piggul, an olive’s volume of nossar, [or] an olive’s volume of cheilev, these are tahor, and one is not liable on their account for [consuming] piggul, nossar, and tamei.  [If] he placed them in the rain and they swelled, they are tamei, and one is liable on their account for [consuming] piggul, nossar, and tamei.