Health & Wellness
15 Common Kitchen Items That Are Secretly Toxic
Here’s what you need to avoid to keep your family safe.
When it comes to whitening and disinfecting, bleach is a go-to household staple, but bleach itself is also a dangerous substance that can cause skin irritation, respiratory problems, and even death. “Used properly, bleach is great for disinfecting, but it is usually one of the most hazardous chemicals in the household,” says Rick Sachleben, Ph.D, expert for the American Chemical Society. “Put one drop of bleach in a gallon of water and you can drink it, but five percent bleach will burn your throat.” One study shows that children who were regularly exposed to bleach-cleaned environments had higher rates of respiratory-tract infections while a more recent study links bleach to an increase in risk for fatal lung conditions. Perhaps the biggest risk involving bleach happens when it is mixed with ammonia. When mixed, bleach and ammonia react to form chloramine, which evaporates into the air and can kill you if you breathe it in, explains Sachleben. Bleach also wreaks havoc on kitchen faucets and surfaces. Bleach contains chlorine, and when it reacts to disinfect, it becomes corrosive, explains Sachleben. “If you use it around your house, the faucets will rust from the chlorine.” Make sure you know which 8 subtle ways your kitchen might be making you sick.
Available in full-strength and in a variety of household cleaning products, ammonia in liquid form is an excellent cleanser. However, despite it’s cleaning prowess, it can cause serious health problems if not used properly. According to the Occupational Safety and Health Administration (OSHA), ammonia is highly toxic and can severely corrode the lungs, eyes and skin, causing blindness, lung problems and death. Its pungent odor is highly recognizable and irritating. “You have to be careful not to use ammonia in an enclosed space and breathe it in,” says Sachleben. “And never mix ammonia and bleach—it’s lethal.” Here are some more cleaning products you shouldn’t mix.
Oven and drain cleaners
Many oven cleaners and drain cleaners contain sodium hydroxide (also known as lye), a corrosive substance that can cause severe burns if it comes in contact with your skin or eyes. “Oven cleaners are sprayed, which means you can end up breathing it into your lungs,” says Sachleben. If inhaled, sodium hydroxide can cause a sore throat that can last for several days. Drain cleaners also contain sodium dioxide and can be hazardous—that’s why they come with instructions with warnings, he says. When cleaning with these toxic substances it is important to always wear gloves, and make sure the area is well ventilated, says Becky Turpin, director of Home and Community Safety at the National Safety Council. “Turn on a fan if you have one, and open windows. Wear a mask that covers your mouth and nose.” Don’t pour these dangerous things down the drain.
Plastic cutting boards
These are a kitchen staple, but when they become scarred and ragged from the deep slices of knives, they create a web of fissures that can harbor bacteria and lead to food poisoning. Worn plastic cutting boards are also likely to shed plastic particles that could end up in your food. “With plastic cutting boards, the risk of chemicals coming from the board is low, but the bacteria is always an issue,” says Sachleben. “You need to be able to get the trace of bacteria out of the crevices.” The United States Department of Agriculture offers guidelines for cutting board safety. The best way to clean a plastic cutting board is to run it through the dishwasher, but if the crevices on the board become deep and difficult to clean, you should throw it out. Follow these tips for expert cutting board care.
Aluminum foil has been around for more than 100 years and is an ideal product for wrapping and storing foods, but when aluminum leeches from foil or aluminum pans into our food, it can be potentially harmful. While our bodies secrete aluminum through urine and feces, some researchers believe that cooking with aluminum foil allows aluminum to enter the body, and accumulation of aluminum in the body can potentially damage the nervous system, kidneys and bones. Sachleben disagrees with this research but does caution that risk for aluminum exposure increases when you cook acetic foods, such as tomatoes, in an aluminum pot. One study shows that cooking at high temperatures and the use of acidic foods did perpetuate a greater amount of leaching of aluminum. “Follow the rules, says Sachleben. “Don’t cook acidic foods in aluminum or store orange juice in an aluminum container.”
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Many cooks prefer gas cooktops for their quick start, constant flame and ability to cook food more evenly, but gas appliances, especially if not vented properly, can emit a mix of potentially hazardous chemicals and compounds—nitrogen dioxide, carbon monoxide and formaldehyde—which can worsen various respiratory and other health ailments. According to research, these pollutants are usually less diluted within our homes than they are outdoors, and in the absence of ventilation, emissions from gas stove burners can reach potentially harmful levels. “Most gas stoves are not vented like your furnace,” says Sachleben, “but you also don’t use them as much, and most homes have carbon monoxide detectors.” When it comes to the threat of formaldehyde, he says that you are more likely to find higher concentrations of the chemical in some of the foods you eat than from the gas flame on your stove. “But the concern is there,” he says. To ensure safe air quality levels, be sure to use a venting range hood, and never use a gas stove as a heat source. Find out which houseplants can improve your home’s air quality.
We know what’s in synthetic cleaners, says Sachleben, but the ingredients in some natural products have not been studied and we don’t know the long-term toxicity of the ingredients. While reputable natural cleaning companies such as Method and Seventh Generation list the ingredients on their labels and work to exclude chemicals with known or suspected toxicities, some companies claim to be green or natural but still sneak toxic substances in their products. Natural cleaners contain plant extracts and their minor components are not well identified, so you don’t know the risk, explains Sachleben. For example, cleaners with orange may seem natural, as orange has natural antibacterial properties, but these sprays may also include d-limonen, which can cause skin irritation. Did you know you could use these foods to clean?
A sharp knife can be a chef’s best friend, but knives, especially if they are dull, are responsible for the greatest number of kitchen accidents, sending more than 1.1 million people to emergency rooms each year. While sharp knives pose obvious risks, keeping knives sharp actually leads to fewer injuries. Dull knife blades are more likely to slip because they require more pressure to cut. In addition to following proper safety rules, it’s important to have your dull knives resharpened, says Sachleben. “If you do send your knives out to be re-sharpened, be careful when you get them back.”
Non-stick cooking pans
Non-stick cooking pans make clean-up a breeze but when their surfaces are heated to high temperatures or they become scratched and pieces of the coating flake off into your food, it can pose health risks. Non-stick pans are coated with polytetrafluoroethylene (PTFE), a chemical that has nonstick properties. According to research, when PTFE-coated pans are heated to high temperatures, they emit gases that can be toxic. To be safe, one should try to avoid overheating pans that are fluorinated, says Sachleben. It’s worth spending the money on a quality pan for cooking—you want to get something that will hold up over time. If you are worried about chemicals leaching into your foods, these are the best types of cookware you should use.
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Phthalates, often called plasticizers, are found in everything from vinyl flooring to adhesives to raincoats as well as many personal care products and a popular item found in the kitchen: dish soap. According to the U.S. Centers for Disease Control and Prevention, the health effects from exposure to low levels of phthalates are unknown but in studies, some types of phthalates have been shown to affect the reproductive system of laboratory animals. “There is valid concern about phthalates and long-term exposure,” says Sachleben. While the risk may be low, especially when compared to other products, an existing risk is a good reason to be cautious and find substitutes. “There are other cleaners that allow the chemicals to be effective but with less risk,” he says. Here are the 4 safest dish soaps you can buy.
Plastic storage containers
Plastic containers and plastic wrap are common kitchen items used to store food but when placed in the microwave and heated, they have the potential to leak bisphenol-A (BPA) and phthalates into the food, especially if the food has a higher fat content. These two chemicals are known to be endocrine disruptors, which means they have the ability to affect estrogen and testosterone levels in humans. Additional research shows that they may have the potential to impact the development of the brain and reproductive organs in developing fetuses. Temperature and time are also key factors when it comes to heating food in plastic containers. “Hot foods sitting in a container for longer periods of time, will leach more,” says Gary Ginsberg, Ph.D, author of What’s Toxic, What’s Not. “In general, it is advisable to heat your food in ceramic or Pyrex to avoid the leaching issues you get from plastic trays,” he advises. “When we know something is avoidable, it’s good to take action on it.” Make sure you throw these 13 kitchen items out already.
Despite their claims for killing bacteria, the U.S. Food and Drug Administration (FDA), says there isn’t enough science to show that over-the-counter (OTC) antibacterial soaps are more efficient at preventing illness than washing with plain soap and water. In addition, the long-term use of antibacterial cleaning products, which contain triclosan and triclocarban, may have negative health effects and could make some bacteria resistant to antibiotics. Quarternary Ammonium Compounds, another type of antimicrobial often found in antibacterial cleaners, not only have been shown to breed antibiotic-resistant bacteria but they also cause dermatitis. “It’s important for people to understand the hidden dangers lurking underneath the sink and recognize that children are not the only ones at risk,” says Turpin. “Adults need to protect themselves from harsh chemicals and vapors, too.”
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Canned foods are a convenient staple in many kitchen pantries, but their linings often contain BPA, a chemical that has been shown to cause reproductive toxicity. “It is hard to find canned foods that don’t have BPA,” says Ginsberg. Children’s foods are often advertised as having liners that are free of BPA, and parents should look for that and try to lessen the use of canned foods, he says. “It’s better to go with fresh or frozen food, but if the frozen food is in a plastic bag, don’t heat it in the microwave,” says Ginsberg.
Multipurpose cleaners promise to make life easier by being able to clean a variety surfaces but many contain the harmful chemical 2-Butoxyethanol, a glycol ether that, according to the EPA may cause a variety of ailments from skin irritation and sore throats (when inhaled) to more serious conditions such as liver and kidney damage. “Depending on the type of cleaner, these products may contain ammonia, perchloroethylene (“PERC”), 2-butoxyethanol or sodium hydroxide,” says Turpin. “All of these chemicals can have negative side effects if ingested or inhaled, and the potential complications range from skin irritation to organ damage.”
From removing grease to warding off ants, gasoline may have a variety of household uses, but remember, gasoline is made for cars, says Sachleben. “It is not designed to be a cleanser—it is too flammable and too dangerous—and should not be brought in the house.” Gasoline can contain benzene (and other aromatic hydrocarbons), which is known to be a human carcinogen, explains Sachleben. Exposure to gasoline, either through physical contact or inhalation, can cause several health problems and lead to gasoline poisoning. “If you need to clean something, go to the store and spend the money and buy the cleaner that is designed for what you need to do,” says Sachleben. Next, check out 11 ways you could be cleaning your kitchen wrong.