Microwave Ovens and the Healthfulness of Microwaved Food
Microwave ovens do have benefits. They are certainly convenient. They are more energy-efficient than other cooking methods. But are they safe? And do they produce food that contributes to the health of our bodies?
While there is not enough evidence to require warning labels on microwave ovens, or to remove them from the market, there is concern both about the safety of our exposure to microwaves and the healthfulness of microwaved food.
THE DANGERS OF MICROWAVES
Even microwave ovens that are functioning perfectly emit microwaves. Safety standards set by the US Food and Drug Administration (FDA) allow microwave emissions of up to one milliwatt per square centimeter (1mW/cm2) when the oven is purchased, and up to 5mW/cm2 after the oven has been in use. Studies on industrial exposure recommend that daily exposure should not exceed one milliwatt for more than one minute. Average home use of microwave ovens far exceed this.
Workers who are exposed to microwaves on the job experience headaches, fatigue, irritability, sleep disturbances and other symptoms.
HOW MICROWAVES AFFECT FOOD
Advocates of microwaved food claim that it is healthier because it retains vitamins, but the University of Minnesota disagrees:
"Microwaves ... are not recommended for heating a baby's bottle...Heating the bottle in a microwave can cause slight changes in the milk. In infant formulas, there may be a loss of some vitamins. In expressed breast milk, some protective properties may be destroyed.... Warming a bottle by holding it under tap water or by setting it in a bowl of warm water...is much safer".
If heating formula in a microwave can cause it to lose vitamins and protective properties in breast milk to be destroyed, then it can do the same to the foods we eat. While the effects may not be immediately observable, a regular diet of microwaved food may have long-term health consequences.
Two Swiss researchers found that microwave cooking changes food nutrients significantly. Blood samples taken from eight individuals immediately after eating microwaved food revealed, among other things, an increase in the number of white blood cells--often a sign of poisoning.
Safety tips for using microwave ovens
I personally have never had a microwave oven in my own kitchen and am finding that it had been difficult to get people to give up their microwave ovens. Some of the generation who grew up with microwave ovens apparently don't know any other way to heat food (really!).
If you choose to use a microwave oven, Consumer Reports magazine suggests you stay as far as possible from the oven while it is in operation.
In addition, operate and maintain the oven in ways that minimize leakage:
* make sure the oven door closes properly
* prevent damage to hinges, latches, sealing surfaces and the door itself, and make sure these are in good working order
* make sure no soil or food residues accumulate around the door seal
* avoid placing objects between the sealing surfaces.
For peace of mind, test your oven for leakage. Testers can be purchased online.
When cooking in a microwave, use heat-resistant glass, not plastic. The Food Safety Inspection Service (FSIS) of the USDA warns against using foam trays, plastic wraps, and cold-storage containers such as margarine tubs, whipped-topping bowls and cottage cheese cartons. According to the FSIS flyer "A Microwave Handbook," these containers "are not heat stable at high temperatures. They can melt or warp from the food's heat, possible causing chemicals to migrate into the food."
Read more about microwave ovens, the healthfulness of microwaved food, and where to purchase microwave oven testers at http://www.debraslist.com/food/aboutmicrowaveovens.html
Hailed as "The Queen of Green" by the New York Times, Debra Lynn Dadd has been a leading consumer advocate for products and lifestyle choices that are better for health and the environment since 1982. Visit her website - http://www.debraslist.com - for 100s of links to 1000s of nontoxic, natural and earthwise products, and to sign up for her free email newsletters.
Latest News
Ocean County Sheriff's Department Issues Safety Tips The Manchester Times, NJ - Sheriff Polhemus stresses, "Use common sense when cooking, and don't be careless. The holidays, in most homes, means the smell of a good home-cooked meal. ... |
Extension office to offer tips on estate planning Brewton Standard, United States - In case you need help with cooking questions and we are not available feel free to call one of the Holiday Hotlines. They offer lots of helpful cooking tips ... |
Make Thanksgiving happy; follow safe-cooking tips The Columbian, WA - You should never leave your cooking unattended, a major cause of fires, and it’s best to make the kitchen off-limits to children and adults who aren’t ... Venice Fire Department - Cooking Tips Fire department shares safety tips for cooking Fire department offers tips for cooking safety |
Clorox Prepares for Holiday Cooking Season In-Store Marketing Institute (subscription), IL - Glad supports the in-store campaign with a dedicated website offering recipes, activities (including napkin folding and flower arranging) and cooking tips ... |
Cookbooks for the shopper and baker in you Scripps News, DC - Magazines and the Internet overflow with recipes and cooking tips (as do our own bookshelves). Yet we covet cookbooks, especially new ones, ... |
 Examiner.com | 20 last-minute Thanksgiving recipes and cooking tips Examiner.com - St. Louis Low-Carb Examiner Amy Dungan lets you in on Butterball.com tips, Thanksgiving turkey video lessons and recipes. Her article will teach you how to ... |
Woman’s Day Magazine and BlogTalkRadio Partner to Launch Online ... EON, WA - Jackie Plant and other Woman’s Day food editors bring the magazine’s test kitchen to listeners with recipes, cooking tips and information to make mealtime ... |
Children share cooking tips, holiday thanks Clinton News, MS - By Amanda Wells On Thanksgiving Day, who's going to cook that Butterball turkey, cornbread dressing and desserts galore? ... |
Teacher Tips: Cooking in the Classroom Well Fed Network - I thought I’d share some tips for cooking with children in the classroom. It is a fun activity and is a fantastic teaching method for kids who learn by ... |
Turkey Cooking Tips KBLG, MT - THE BIGGEST DAY OF THE YEAR FOR HOME COOKS IS JUST ABOUT HERE, AND WE HAVE SOME TIPS FROM HEALTH OFFICIALS TO HELP AVOID PROBLEMS. ... |
Resources
-
Health-E-Meals.com - Quick and Healthy Recipes, Snacks, Fitness Tips, Motivation, Links.
Healthy Solutions for Your Busy Life. Health-E-Meals.com offers a free healthy Cooking newsletter as well as other practical resources for making healthy living, eating and exercise a part of your busy life.