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Storage & shelf life

How long foods keep and how refrigeration, containers, temperature and storage conditions affect quality and safety.

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Quinnoa currently groups 204 articles under Storage & shelf life.

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Eggs · Food safety

Cracked Egg: When You Can Use It and When You Should Throw It Away

A crack breaks an egg's main physical barrier. USDA advises against buying eggs that are already cracked because bacteria on the shell can enter. If a refrigerated intact egg cracks accidentally at home, it can be handled immediately: transfer the contents to a clean covered container, refrigerate, and use within a short period, preferably fully cooked. If an egg cracks during hard cooking, USDA says it is safe.

4 min read
Vegetables & mushrooms · Nutrition & composition

Do Pre-Cut Vegetables Lose Nutrients Faster?

Cutting vegetables can accelerate the loss of selected nutrients because it breaks cells and exposes more tissue to oxygen, light, enzymes, and microbes. Vitamin C and some bioactive compounds are more sensitive than fiber and minerals. The change is not immediate and depends heavily on species, temperature, packaging, and storage time. Properly refrigerated pre-cut vegetables can still retain most of their nutritional value.

4 min read
Vegetables & mushrooms · Food safety

How Long Does an Opened Bag of Salad Last in the Refrigerator?

Once opened, bagged salad loses its protective package environment and cut leaves become more exposed to oxygen, moisture, and handling. There is no universal day count that replaces package directions, but using it within a few days is more sensible than automatically stretching it to the unopened-package date. Keep it at 40 °F (4 °C) or below and discard slimy leaves, abnormal odor, or excessive liquid.

4 min read