Coca-Cola bottle patent, 1915 Records of the Patent and Trademark Office, National Archives. Of course, Coke itself is much older than the iconic bottle.

About 10 years ago, a plastic Coca-Cola bottle weighed 27 grams. In 2023, it weighted 21 grams. Now, it weighs 18.5 grams—the lightest it’s ever been.

Coca Cola has switched to bottles that are made from 100% recycled plastic for its Coke brands. The change is expected to reduce the annual amount of plastic the company uses by 83 million pounds.