I never realized how quickly beef would go bad. I bought some ground beef at Costco and seperated it into ziploc bags and froze it awhile ago. I took it out early last week to make burgers but only ended up using about half of the bag. I left the rest in the fridge and went to use it last night. It smelled awful.. like rotten eggs. I figured it wuold last longer than that in the fridge, but maybe the freezing, thawing, and then sitting in the fridge had something to do with it.
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