Responsa for Zevachim 190:7
בלוע בלא בישול לא קמיבעיא לן כי קמיבעיא לן בישול בלא בילוע מאי
- Said Raba, Come and hear: WHETHER ONE BOILED THEREIN OR POURED BOILING [FLESH] INTO IT!<span class="x" onmousemove="('comment',' Thus even if one thing only happened to the vessel (i.e., it absorbed but was not used for actual boiling) , it must be broken or scoured and rinsed. Presumably boiling without absorbing is the same.');"><sup>7</sup></span> - We do not ask about absorbing without boiling;<span class="x" onmousemove="('comment',' That obviously necessitates breaking, since absorption is the principal reason for the whole law. For after the time allowed for the consumption of this flesh, the absorbed matter becomes nothar (v. Glos.) , which is forbidden, and it will impart its flavour to any other flesh that is subsequently boiled in it, unless it is scoured and rinsed. (Scouring and rinsing are not efficacious for earthen vessels, for which reason they must be broken.)');"><sup>8</sup></span>
Teshuvot Maharam
A. This bread may not be eaten, lest perchance one eat it with milk. However, it may be sold to a Gentile, since in a Rabbinical prohibition we do not take into consideration the remote possibility that the Gentile will resell the bread to a Jew.
This Responsum is addressed to R. Tobiah.
SOURCES: Am I, 77.