Food labeling can be confusing. Here's what you need to know to get the most out of your groceries.The "sell-by" date simply tells retailers how long to display the product. It's in no way an indication of safety. .Probably the most commonly heeded food date is the "best by" date, but that date refers to quality not safety. ."Guaranteed fresh" usually refers to bakery items. It simply indicates when the item will be at peak freshness."Use by" refers to the last date recommended by the manufacturer for use of the produce while at peak quality.Ultimately, consumers must determine food safety; the USDA does admit that food is good past these labeled dates.Common signs of spoilage include an off odor, flavor, or texture due to naturally occurring spoilage bacteria