Expiration dates on food aren’t about safety; they’re about quality. Most foods remain safe to eat well past the printed date, but understanding these labels can prevent unnecessary waste and keep your pantry stocked longer.
Why Dates Are Confusing
Unlike common belief, expiration dates are almost entirely set by manufacturers, not federal regulators. The U.S. Department of Agriculture (USDA) confirms these dates are voluntary indicators of peak freshness, not safety hazards—with the exception of infant formula, which does have safety-related expiration dates.
This system is designed to guide consumers towards optimal taste and texture, but it often leads to confusion.
Decoding the Labels
Manufacturers use specific phrases to signal quality standards:
- “Best By” or “Best if Used By/Before”: Indicates when a product will have its best flavor or texture. It doesn’t mean the food is unsafe after this date.
- “Use By”: Similar to “Best By,” this suggests peak quality, but is not a safety marker unless it’s on infant formula.
- “Sell By”: A date for retailers to manage stock rotation, not a consumer safety warning.
- “Freeze By”: Tells you when to freeze the item to maintain quality.
These labels are a commercial tool to maximize sales, not a health warning.
How Long Can You Really Keep Food?
Many foods remain safe for extended periods:
- Milk, lunch meat, and other perishable items: Safe to consume several days or even a week past the “Best By” date.
- Frozen foods: Can last indefinitely, though flavor may diminish after months.
- Canned goods, cereal, pasta, cookies: Often safe for years if packaging is intact and undamaged.
However, never ignore obvious signs of spoilage : mold, off-odors, discoloration, curdling, or watery texture. While most people recover from mild spoilage without serious illness, it’s best to err on the side of caution.
The Bottom Line
Expiration dates are a guide to quality, not safety. Use your judgment, check for spoilage signs, and don’t automatically toss food just because a date has passed. Reducing food waste saves money and minimizes environmental impact, while ensuring you only consume food that is safe and palatable.
