how long does cooked hamburger stay fresh in the refrigerator
Rating Newest Oldest. Best Answer: Actually Chef Chris is closest to the correct answer. According to the Food Code, you can keep UNCOOKED hamburger for up to 2 days, and COOKED hamburger up to 5 days, if it is stored properly. As far as meat from the supermarket, which is were 95% get their meat from, there is a expiration date on all meats.