Proper Storage Extends Shelf-Life of Food

The shelf-life of food will depend upon the food itself, packaging, temperature, and humidity. If the food is not sterilized, it will ultimately spoil due to the growth of microorganisms. Foods, such as dairy products, meats, poultry, eggs, and fresh fruits and vegetables, will spoil rapidly if not stored at proper temperatures. For optimal quality and safety, dairy products should be stored at refrigerated temperatures between 34°F and 38°F, meats between 33°F and 36°F, and eggs 33°F to 37°F. Fresh vegetables and ripe fresh fruits should be stored between 35°F and 40°F. Always store refrigerated foods at temperatures less than 40°F. Place a thermometer in the refrigerator and monitor the temperature often. This is especially important during the hot summer months.

Frozen foods should be stored below 0°F in moisture-proof, gas-impermeable plastic or freezer wrap. Make sure to label and date frozen foods. Frozen foods may be safe to eat if stored beyond the recommended storage time but quality may diminish. Sometimes consumers will overload a freezer and block the circulation of coolant throughout the freezer compartment. This will lower the efficiency of the freezer in keeping the food below 0°F.

Food that is temperature abused will spoil rapidly as evidenced by off-odors, off-flavors, off-color, and/or soft texture. For instance, spoiled milk exhibits a fruity off-odor, acid taste, and may curdle, whereas spoilage of fresh fruits and vegetables may exhibit an off-color and soft texture. Slime on the surface of meat, poultry, and fish indicates spoilage. As microorganisms grow, they utilize the food as a nutrient source and may produce acids. There is an increased risk of foodborne illness from consumption of spoiled food. Food may be spoiled without a detectable off-odor. Discard all foods that may have been at room temperature more than 2 hours. Therefore, when in doubt throw it out!

To ensure food stored in the refrigerator, freezer, or pantry is consumed within the expiration dates, practice FIFO (First-In-First-Out). When stocking food storage areas, place recently purchased items behind the existing food items. This will help ensure that you are consuming food prior to expiration date/spoilage and will save you money by reducing the amount of food to discard. Portion leftovers in clean, sanitized, shallow containers, and cover, label, and date. Generally, leftovers should be discarded after 48 hours in the refrigerator.

Dry food staples such as flour, crackers, cake mixes, seasonings, and canned goods should be stored in their original packages or tightly closed airtight containers below 85°F (optimum 50°F to 70°F). Humidity levels greater than 60% may cause dry foods to draw moisture, resulting in caked and staled products. Canned goods stored in high humidity areas may ultimately rust, resulting in leaky cans. Discard canned goods that are swollen, badly dented, rusted, and/or leaking.

For safety, always store food separate from nonfood items such as paper products, household cleaners, and insecticides. Contamination of food or eating utensils with a household cleaner or insecticide could result in a chemical poisoning.