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Some plastics are not safe when heated.

Photo of plastic water bottles

"I've heard using plastic food containers is dangerous."

  • Bisphenol A (BPA) is a chemical found in products made with plastic including cups, the inner lining of aluminum cans, and some water bottles. These plastics are labeled with the number 7 in a triangle.
  • Tests have shown that BPA is linked with various health problems such as cancer, thyroid disease, early puberty in girls, and hyperactivity.
  • Because BPA leaches out into food at a faster rate when heated, avoid putting #7 plastics in the microwave or dishwasher.
Try This

The next time you use your microwave, use glass instead of plastic to heat foods.

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