The same issue raised on the previous page regarding laundering vessels removed from the Azara is now applied to breaking earthenware vessels and performing merika (scrubbing) and shetifa (rinsing) of metal vessels. If these vessels are punctured and lose their status as valid utensils, how can the mitzva of breaking or cleaning them be fulfilled?

Reish Lakish teaches how to handle a priestly garment that becomes impure, since it cannot be torn. Rav Adda bar Ahava challenges his suggestion, but the Gemara resolves the difficulty.

The Gemara raises a difficulty with the obligation of laundering: how can blood be laundered in the Azara if Rav Nachman, quoting Raba bar Avuha, rules that blood of a sin offering and stains from nega'im require cleansing with the seven prescribed detergents, one of which is urine? According to a braita, urine may not be brought into the Temple. The resolution is to bring the urine mixed with saliva (rok tafel).

The Mishna teaches that vessels in which sacrificial meat was cooked, or into which boiling liquid was poured, require merika and shetifa, whether from kodashei kodashim or kodashim kalim. Rabbi Shimon disagrees, exempting kodashim kalim from this requirement.

A braita explains that the words in the verse in Vayikra 6:21, "that which was cooked in it," extend the law to include pouring boiling liquid into a vessel.

Rami bar Chama raises the question of whether meat suspended in the air of the oven counts as cooking for the purposes of requiring breaking the oven. Rava brings a source to answer this question, but it is rejected. A statement of Rav Nachman in the name of Raba bar Avuha is also cited to answer the question, but it too is rejected.

A practical case is cited where an oven was plastered with fat, and Raba bar Ahilai forbade eating bread baked in it forever, lest one come to eat it with dairy dip (kutach). This ruling is challenged by a braita that prohibits kneading dough with milk or plastering an oven with fat, but allows use once the oven is reheated (as koshering removes the flavor). Raba bar Ahilai's ruling is therefore rejected.

Ravina asks Rav Ashi why, if Raba bar Ahilai was refuted, Rav ruled that pots on Pesach must be broken. Rav Ashi explains that Rav understood the braita to be referring to metal vessels. Alternatively, one can distinguish between earthenware ovens, whose heat is on the inside (so koshering works), and earthenware pots, which are heated from the outside and cannot be properly koshered.