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Shelf life dating foods

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The expiration date of pharmaceuticals specifies the date the manufacturer guarantees the full potency and safety of a drug.

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Are all of the foods you have on hand at peak quality and safe to eat? This tells you how long a food will be fresh and at top quality if it is stored properly.Closed dating is a required packing code for tracking products in interstate commerce and locating products that have been recalled.These codes (found on canned goods) might refer to the date of manufacture, but they are not meant to tell the customer how long the product can be used.It is recommended that all canned food be stored in moderate temperatures (75° Fahrenheit and below).Proper food storage ensures that your food is safe, fresh and full of its naturally occurring nutrients.After that date, the product may still be safe to eat, but may not taste as good. Many canned products have a "for best quality use by" date stamped on the top or bottom of the can.

"Expiration" dates are rarely found on canned food.

Product quality is often mathematically modelled around a parameter (concentration of a chemical compound, a microbiological index, or moisture content).

For some foods, health issues are important in determining shelf life.

Shelf life depends on the degradation mechanism of the specific product.

Most can be influenced by several factors: exposure to light, heat, moisture, transmission of gases, mechanical stresses, and contamination by things such as micro-organisms.

For example, pasteurized milk can remain fresh for five days after its sell-by date if it is refrigerated properly.