Also the stores usually get their meat from another state. Years ago the store in Illinois had a sale but out on the east coast was a storm. So they didn't get the chickens from Carolina.Wow! That's a game changer! And that explains why you can't leave storebought meat uncooked in the fridge for more than a few days, given where it's been before it was packaged. Thanks Molpet! I'll read the article shortly.
Count back 10 days from the sale by date and that's probably when it was harvested. If it was never frozen .