Concerns about aluminum safety have led experts to question whether this common household item may pose hidden health risks.

As studies reveal the potential for aluminum to leach into food during cooking—especially when acidic or salty ingredients are involved—scientists are examining whether cooking with aluminum foil contributes to the body's overall aluminum burden. With aluminum present in many everyday products, understanding its cumulative impact on health is becoming increasingly important, say some.

Aluminum Foil: A Kitchen Essential

More than 93 percent of U.S. households use aluminum foil. Its durability and malleability make it a versatile tool, easily molded and shaped for various tasks.

Often referred to as tin foil, aluminum foil is a go-to choice for various cooking tasks. Whether roasting vegetables to a caramelized finish or grilling meats to a crisp, aluminum foil helps achieve the desired texture and finish. Foil "conducts heat evenly and keeps it consistent, making cleanup easier by keeping baking sheets clean," Abbie Gellman, registered dietitian and chef, told The Epoch Times.

Aluminum foil is also used in packaging and catering, providing a reliable barrier against light, air, and harmful microbes that could lead to food spoilage. "For years, aluminum foil has been a reliable and trusted way of storing and cooking food," a spokesperson from Reynolds Consumer Products, the maker of Reynolds Wrap, wrote in an email to The Epoch Times.

Latest Research on Cooking With Aluminum Foil

Studies show that aluminum foil is a major source of aluminum exposure and can contribute to aluminum buildup in our bodies, Christopher Exley, a chemist with more than 35 years of experience studying aluminum exposure, told The Epoch Times. "Leaching of aluminum into cooked food occurs wherever there is water, essentially juices from the food," he added.

The amount of aluminum released depends on acidity, salt content, cooking temperature, and exposure time.