A California woman has filed a class action lawsuit against consumer goods brand S.C. Johnson & Son, alleging Ziploc storage bags contain undisclosed microplastics that harm customers.

Why was a class action lawsuit filed against Ziploc?

The lawsuit — filed by Linda Cheslow of Santa Rosa, California, in the U.S. District Court for Northern California April 25 — claims that Ziploc's assertion that its products are freezer- and microwave-safe is incorrect and misleading, causing customers to unknowingly expose themselves to dangerous microplastics "during routine kitchen practices."

"In reality, these Products are made from polyethylene and polypropylene — materials that scientific and medical evidence shows release microplastics when microwaved and frozen — making them fundamentally un

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