Status of davar gush as a kli rishon with regard to bishul after baking

Question:

Is one halachicaly required to remove every last crumb of challah that has fallen on their plate before placing hot (non-liquidy) cholent, or chicken on it on Shabbos. Although a davar gush has the status of a kli rishon, and is able to ‘cook’ other foods, it is not the same entirely as a real kli rishon. While one may not put a baked item into a kli rishon even once it is removed from a fire, is there a halachic prohibition to put the food down if there are crumbs there, or is it a chumra to be careful with this?

Answer:

R’ S. Z. Auerbach held that there is no need to be careful about this, and he called it a chumra yiseira (overly stringent). His reason was because the person has absolutely no intention to cook the crumbs, and the concept that the cholent will cook something in a kli sheini because it is considered a solid is also a chumra (we are careful about it, however it is nevertheless considered a chumra). Additionally, the crumbs are dry, and the question would only be because of bishul after baking, and it is doubtful that the crumbs are indeed getting cooked this way.

Sources:

Shulchan Shlomo 318 comment 37 on sief katan 29.