What’s the real difference between "expiration date," "use-by date," and "sell-by date" on food products? I’m always confused about whether I can still safely consume something after these dates. Are they legally mandated, or just manufacturer suggestions? Does it depend on the type of food – like dairy versus canned goods? And if it is still safe, how much longer can I reasonably expect the food to be good, assuming proper storage?

Answer

• Expiration Date: This date signifies the manufacturer’s estimate of how long a product will retain its quality and potency under ideal storage conditions. It is most often seen on products like medications, vitamins, and supplements. After the expiration date, the manufacturer does not guarantee the product will be safe or effective to use.

• Use-By Date: This date is usually found on perishable items, especially food products. It indicates the date until which the product will be at its peak quality. It’s a guideline for when the product should be used to ensure optimal flavor, texture, and nutritional value. While the food might still be safe to consume after the use-by date if stored properly, the quality may have deteriorated significantly.

• Sell-By Date: This date is primarily for retailers. It informs the store how long to display the product for sale. It allows for some storage time by the consumer after purchase. Products typically remain safe and of good quality for a period after the sell-by date, assuming proper storage. The consumer should use the product well before it spoils, and spoilage signs such as odor or texture changes should always be heeded.