Reply To: Questions on Yoreh Deah, Choshen Mishpat

derech hamelech:

A. by a lach blach, we would certainly say the whole thing is meurav. the only nafka minah I can think of regarding if it is bishul would be for basar b’chalav as to whether it is d’oraysa and assur b’hanaa. I imagine we would follow the regular rules of tassaa gavara and say it only cooked kdai klipa.

B. Regarding irui and kli sheni, bear in mind that issur has another factor over hilchos shabbos in that on shabbos we are only concerned with bishul. Kli sheni, for instance, although it is not mevashel, is maflit u’mavlia according to the taz following rashal (not at same time though).