The old-style milk carton caps were 21 millimeters tall, while the new ones are 17 millimeters ‒ a difference of about 19% that makes them harder to grip, said Min DeGruson, a professor and ...

In Heinz’s squeezable upside-down ketchup bottle, the plastic cap is designed to dispense a standard blob of sauce without spilling. It works. But it can’t easily be recycled, so the Kraft ...

Since 2004, more than 9,000 groups in 45 states and more than 3.5 million people have participated in the company's cap recycling projects.