Zevachim 96a (צו.) — the Talmud in English

:

Rather, regarding the pots of the Temple, why should they be broken?

for they have a remedy through heating them until they glow, as we said that the reason for the prohibition is because of the absorbed flavor within them, and not because of the cooking alone [without absorption]. And with regard to the Tabernacle, it is understandable that they should be broken, because it was not permanently situated in one place, and they did not have kilns in which to heat earthenware vessels until they glowed. But in the Temple,

let us return them to the kilns,

in which the potter fires them, and they will become white-hot.

:

Rabbi Zeira said: Because kilns are not made in Jerusalem,

because of the smoke, which blackens the wall of the Temple, and this is disgraceful.

:

Abaye said to him: Do they make refuse heaps in the courtyard

from the shards of earthenware vessels? But we learned that refuse heaps are not made there, because vermin tend to multiply in refuse, and this increases ritual impurity, since the vermin die there and render the consecrated food impure.

:

It escaped

Abaye's memory—he forgot

that which Rav Shemaya taught in Kalanbo,

the name of a place:

shards of earthenware vessels are absorbed in their place,

which is one of the miracles that occurred in the Temple. Consequently, refuse heaps were not made from them.

:

Rather, concerning that which Rav Naḥman said in the name of Rabba bar Avuha: The Temple's oven was made of metal,

the difficulty is: Why did they not

make

an oven

of earthenware

in the Temple, since

its heating is performed inside,

and it has a remedy through heating it until it glows?

:

Since there are the two loaves

on the festival of Shavuot,

and the showbread

that they arrange on the table every Shabbat,

whose baking is in the oven and whose sanctity takes effect in the oven,

for they are not made in a kli sharet, since they do not require oil, as we learned in the Mishna: their kneading and arranging are performed outside, and their baking inside; therefore, the oven sanctifies them,

and the oven is thereby

the oven

a kli sharet, and we do not make an earthenware kli sharet

but only one of metal.