Commonly Asked Questions (FAQs)



These FAQs provide basic information and related resources for common food and nutrition questions. For personalized dietary advice, please talk to a qualified health care professional.




Where can I get information on food labeling?





I've just moved to a new area and would like to find out if there is a farmers market nearby.





Years ago I received information from USDA on canning fruits and vegetables and would like to know how to get updated information.





Does USDA have menus or recipes for people on a budget?





How can I avoid foodborne illness and food poisoning?





How long should I keep leftover food?


  • 1. Discard any food left out at room temperature for more than 2 hours (1 hour if the temperature was above 90 degrees F).
    2. Place food into shallow containers and immediately put in the refrigerator or freezer for rapid cooling.
    3. Use most cooked leftovers within 3 to 4 days. (See chart on page 6 of the publication, Keep Food Safe! Food Safety Basics (PDF|449 KB).)