That is mixed with other pieces that have not yet gone three days without being salted. All pieces may then be salted and cooked. Or alternatively, it can also be a case where all the pieces were salted, and one piece among them was over three days old. The law is that they may all now be cooked.
 The meat should seemingly be considered a davar sheyesh lo matirim, and not be able to be nullified, however since it can be roasted at any time it is not a davar sheyesh lo matirim.
 This requires further study for if it is cooked, the blood will give taste to the meat in the pot making this mixture a min b’sheino mino requiring sixty and not just a majority.
 They may all be cooked if they are cooked piece by piece or even all together if additional food is added to make a sixty ratio against the meat in question, otherwise not. One need not throw a piece away as in other cases because the case here is one of chumra instituted by the Geonim and not of halacha.
 For it is not intrinsically forbidden but rather it is because of the blood within it.