Question

1. Regarding the sanctification of sacrificial fats in a service vessel, there seems to be an inconsistency / contradiction in Maimonides in several places on the question of whether sacrificial fats need to be sanctified in a service vessel: Hilchot Ma'aseh HaKorbanot 7:1 (sin-offerings: not necessary, but possible); Hilchot Ma'aseh HaKorbanot 7:2 (burned sin-offerings: necessary); Hilchot Avodat Yom HaKippurim 3:7 (the bull and goat of Yom Kippur: necessary); Hilchot Korban Pesach 1:14 (the Paschal offering: necessary). Do you have any insight on this?
2. It seems that sanctification in a service vessel is not required for the meat of sin-offerings that are burned (Hilchot Ma'aseh HaKorbanot 7:2; Hilchot Avodat Yom HaKippurim 3:7). According to the rule regarding liability for eating sacred food (Hilchot Pesulei HaMukdashin 18:16), something that has permitting acts incurs liability only after its permitting acts have been offered, while something that has no permitting acts incurs liability only after sanctification in a vessel. It seems that this rule applies both to liability for karet in the case of bodily impurity and to liability for lashes in the case of the impurity of the sacrificial item itself. If so, it follows that there is no liability for eating the meat of sin-offerings that are burned. But in Minchat Chinukh 146:7 (Jerusalem Institute edition, s.v. “And it also seems that if one eats from the meat of the bulls”), it is taken for granted that there is liability for eating the meat of burned sin-offerings. Do you have any insights on this?