Reference for Shabbat 74:1

שמע מינה מצטמק ויפה לו מותר שאני הכא דקטמה אי הכי מאי למימרא הובערה איצטריכא ליה מהו דתימא כיון דהובערה הדרא לה למילתא קמייתא קמשמע לן

Then this proves that when it shrinks<span class="x" onmousemove="('comment',' Through cooking. ');">¹</span> and is improved thereby, it is permitted?<span class="x" onmousemove="('comment',' Rashi: the reference must be to a dish which improves the longer it is kept on the stove, for if it deteriorates, it may obviously be kept there, as we certainly need not fear that the owner may rake up the coals, and the dictum is superfluous. Ri: the reference is presumably to the average dish, which improves with shrinking. ');">²</span>

Jastrow

Jastrow

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