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Q

Does my stored food still have any nutritional value?

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A

Nutrients in food are affected by exposure to heat, light, and air. There are many nutrients to consider in stored foods. Following are some effects of storage on some nutrients:
· Calories - foods continue to provide needed energy over time
· Minerals - very little change in stored foods
· Carbohydrates - very little change in stored foods
· Proteins - change in reaction in recipe; for example old wheat flour will not rise, because the proteins are unable to form gluten
· Fats - oxidation (become rancid) creates off flavors and odors
· Vitamins - some loss over time; destroyed by heat, light, and oxidation. Storing and eating a variety of foods can assure adequate vitamin intake.

Rotate stored food within 2 to 3 years to maintain optimal nutritional value.

Posted on 13 Sep 2006

Pauline Williams
Family & Consumer Sciences and 4-H Agent, Salt Lake County

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