[Regarding] a sheretz that is found in the eye of an oven, [or] in the eye of a stove, [or] in the eye of a kupach, from the inner edge and outward, [the oven] is tahor. And if it was in the air, even [if] an olive’s volume of a corpse [was in the eye, the oven] is tahor. And if there is an opening of a tefach [in the eye], everything is tamei.

[If a sheretz] was found in the place for laying the wood, R’ Yehudah says: From the outer edge and inward, [the stove] is tamei. But the Sages say: From the inner edge and outward, [the stove] is tahor. R’ Yose says: From [the point] opposite [where] the pot is set and inward, [the stove] is tamei, from [the point] opposite [where] the pot is set and outward, [the stove] is tahor. [If a sheretz] was found in the place where the bathhouse attendant sits, [or] the place where the dyer sits, [or] the place where those who cook olives sit, [the stove is] tahor. It is tamei only [if the sheretz was found] from the [place where the pot] covers [up the opening] and inward.

A pit that has a place in it for a pot to be set is tamei. And [a pit] of glassmakers, if it has in it a place for a pot to be set, it is tamei. A furnace of lime manufacturers, or [a furnace] of glassware manufacturers, or [a furnace] of potters, is tahor. A purnah, if it has a rim, it is tamei. R’ Yehudah says: If it has istigios [it is tamei]. Rabban Gamliel says: If it has a thin lip [it is tamei].

[Regarding] one whom a t’mei meis touched, who had foods and beverages in his mouth, [if] he inserted his head into a tahor oven, they render it tamei. And a tahor person who had foods or beverages in his mouth, and he inserted his head into the airspace of a tamei [earthenware] oven, they are rendered tamei. [If one] was eating a pressed fig with soiled hands, [and] he inserted his hand into his mouth to remove a pebble, R’ Meir rules [it] tamei, but R’ Yehudah rules [it] tahor. R’ Yose says: If he turned [it] over, it is tamei. [But] if he did not turn [it] over, it is tahor. [If] there was a pundyon in his mouth, R’ Yose says: If [it was] to [relieve] his thirst, it is tamei.