So we took a winter cow about a year ago. I bought a chamber vac sealer and bags from AK Butcher. We've added to our collection in the freezer with two caribou. So alternating between moose and caribou we finally ran out of caribou. I now have about 60lbs of moose burger.I noticed the last batch of moose burger was a bit gamey. The next bag was even more gamey. Today I could hardley stand the smell, when cooking it. I have pulled several bags from different batches of grind and they all are to some degree gamey. Before this I never had any probelms with the same animal and same burger meat. What gives?