How safe is the American food supply? Probably the safest in the world. But, even so, if food isn't handled correctly and becomes contaminated by disease-causing organisms, it can still make you sick. Read on to learn what you can do to ensure the food you consume is safe.
At a barbecue, hamburgers are often brought out to the grill on a platter. If the platter is used again to bring the cooked food to the table, without being washed in between, the cooked hamburgers served on that platter may become contaminated.
Some foodborne illnesses have been traced to the lettuce and cheese on a burger. The cheese on a cheeseburger can become contaminated if it's brought to the grill on the same platter as the raw hamburger. Although the cheese cooks on top of the hamburger, it isn't fully cooked.
If lettuce and cheese are stored under hamburger, the meat can drip on the lettuce and the cheese. It's important to store food properly. Make sure that all meat, poultry, and seafood is in containers or sealed plastic bags in the refrigerator. If you won't be using the foods within a few days, put them in the freezer instead.
Shopping and Storing Food
Safe handling of food starts in the grocery store. In your shopping cart, separate the meat, poultry, seafood, and eggs from the rest of the fresh food. When you get to the checkout, it's best to bag these items by themselves in plastic bags so that any juices don't drip on other foods.
Once food has been purchased, it should be stored as quickly as possible. Don't let perishables sit in the trunk of your car. Ideally, 2 hours is the time allotted between buying food at your grocery store to properly storing it in the refrigerator or freezer. Bacteria generally don't grow well under refrigeration, and in some cases, bacterial growth is severely delayed. Keep eggs in their original containers and store them in the main part of the refrigerator, not the door. If you don't plan on eating leftover food within a few hours, then refrigerate it.
Frozen foods should be thawed either in the refrigerator, in a leak-proof bag in cold water, or in the microwave. Thawing frozen foods on top of the counter allows the frozen surface to thaw long before the core. This provides a nice, warm, moist environment that enhances bacterial growth.
Know when it's time to throw foods out. You can't always tell if foods are past their prime by looking at them. For more information on storage times for food in the refrigerator and the freezer, check out this page from FoodSafety.gov: http://www.foodsafety.gov/keep/charts/storagetimes.html.
Hands should be washed in hot, soapy water for before and after food preparation. Wash hands for at least 20 seconds—about the amount of time it takes to sing "Happy Birthday" twice through.
Handwashing is an important factor in food contamination. It can prevent cross-contamination between different foods or kitchen utensils.
Bacteria is present in the intestinal tract of most people and is easily transferable, especially when personal hygiene is not emphasized. If you use the bathroom without washing your hands afterwards, you can contaminate other things you touch.
Towels used for drying the hands should also be clean, to prevent recontaminating the hands. Paper towels or air drying work well.
Clean Is Key
Kitchen surfaces and tools like counter tops, utensils, and cutting boards can spread bacteria. Use paper towels or clean dishcloths to wipe surfaces often. Utensils, cutting boards, and other cooking tools should be washed in hot, soapy water.
Always wash fruits and vegetables. Rinse them under running tap water. For leafy vegetables, remove and throw out the outermost leaves. Since bacteria grows well on the cut surface of fruits and vegetables, do not contaminate these foods when slicing them. And avoid leaving cut produce out for many hours.
Washing meat, poultry, and eggs is not recommended because it can cause contaminating juices to splash onto other surfaces.
Using a special refrigeration thermometer, check the temperature of your refrigerator at least once a week. The freezer should be at 0°F (-18ºC) and the refrigerator itself should be below 40°F (4ºC). In addition, the thermometers should be checked periodically for accuracy.
Food safety truly does begin at home. So practice good food safety handling practices to enjoy your meal!
Fight Bac!—Partnership for Food Safety Education
US Food and Drug Administration
Canadian Partnership for Consumer Food Safety Education
Dietitians of Canada
The big thaw—defrosting methods for consumers. US Department of Agriculture website. Available at: http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/safe-food-handling/the-big-thaw-safe-defrosting-methods-for-consumers/CT_Index. Updated June 15, 2013. Accessed March 24, 2016.
Check your steps. Food Safety.gov website. Available at: http://www.foodsafety.gov/keep/basics/index.html. Accessed March 24, 2016.
Dangerous food safety mistakes. FoodSafety.gov—US Department of Health and Human Services website. Available at: http://www.foodsafety.gov/keep/basics/mistakes/. Accessed March 24, 2016.
Incidence of foodborne illness, 2010. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/Features/dsFoodborneIllness/. Updated November 17, 2011. Accessed March 24, 2016.
Refridgerator thermomenter: cold facts about food safety. US Food and Drug Administration website. Available at: http://www.fda.gov/Food/ResourcesForYou/Consumers/ucm253954.htm. Updated November 23, 2015. Accessed March 24, 2016.
Tips for fresh produce safety. FoodSafety.gov—US Department of Health and Human Services website. Available at: http://www.foodsafety.gov/keep/types/fruits/tipsfreshprodsafety.html. Accessed March 24, 2016.
United States Department of Agriculture and United States Department of Health and Human Services. Dietary Guidelines for Americans, 2010. 7th Edition, Washington, DC: United States Government Printing Office, December 2010.
Last reviewed March 2016 by Michael Woods, MD Last Updated: 5/6/2014