What do date marks on food indicate?

Date marks on food serve as a vital indicator of how long a food product will last. They provide important information regarding the shelf life of both perishable and non-perishable items, guiding consumers on when to use the product for optimal quality and safety. This helps prevent foodborne illnesses caused by consuming expired products and supports food waste reduction by encouraging the consumption of items before they spoil.

In contrast, while nutritional content is important for dietary planning, it is not directly indicated by date marks. The temperature for storage is critical for food safety, but this information is typically found on different labels or packaging instructions rather than date marks. Similarly, the preparation method may help inform the cooking process or recipe ideas but is not indicated by date markings. Thus, the primary function of date marks is to communicate shelf life, making it essential for informed consumption decisions.