Your mom probably tossed frozen beef on the countertop in the morning, and by evening it was thawed enough to cook.But we are now acutely aware that thawing any raw meat at room temperature can promote the growth of harmful bacteria.Here are three safe and quick methods to thaw ground beef.You can thaw in the refrigerator by placing the beef in there for about 24 hours.In the microwave, use the defrost setting; start defrosting for 3 to 4 minutes, and flip the bag over halfway through.Thaw beef in cool water by keeping it completely submerged. The meat should thaw in less than 15 minutes