Use-by and best before dates

“Use by,” “Best before,” and similar phrases do not necessarily have the same legal meaning in every country. In the United States, most dates on packaged foods are manufacturer-provided quality indicators rather than federally standardized safety deadlines. Infant formula is an important exception.

A “Best if Used By” date generally refers to quality. A “Use By” date may have a product-specific meaning, so follow the label and any applicable manufacturer instructions. Other countries may distinguish legally between “use by” safety dates and “best before” quality dates.

For U.S. consumers, safe handling and storage are essential regardless of the printed date. Refrigerate perishables promptly and follow food-specific storage guidance.

RECOMMENDED RESOURCES

Food Product Dating — USDA FSIS

Describes common U.S. food date-label terminology and the infant-formula exception.

Food Labeling & Nutrition — FDA

FDA food-labeling overview.

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