Originally Posted by Q-Dat
A very long time as long as they stay frozen and in the cryo pack. I have heard of competition guys buying a bunch when they are on sale and using them 2-3 years later.
A couple months ago I cooked a brisket that had been frozen in the cryo for almost two years. It came out great!
Yep. I've smoked a two year old butt still frozen in the original cryo with no problems too. Good flavor and texture. As long as the integrity of the packaging is intact, at least from a food safety view, you could probably keep them frozen for quite a few years.