Polypropylene is a plastic that’s used in many products, including food storage containers. You can recognize it as the number 5 surrounded by a triangle on the bottom. It’s generally considered one ...

Polypropylene is a type of plastic used to make everything from yogurt containers to water bottles. It's easy to recycle and is one of the most popular plastics used today. You'll know a piece of ...

For many years, people could safely assume the clear disposable containers that held their soda or iced coffee were made of polystyrene or polyethylene terephthalate (PET). But thanks to a new ...