Plastic wrap (also cling wrap, food wrap, or clingfilm) is a thin plastic material. It is used for sealing food in containers. It keeps food fresh over a long period of time without spoiling. It is usually sold on rolls in boxes with a cutting edge.
In the United States and Japan, Plastic wrap has sometimes been made of polyvinylidene chloride (PVdC). PVdC was the main ingredient in Saran Wrap, a popular brand of plastic wrap. Now, Saran Wrap is made with polyethylene.
Research shows that plastic wrapping of food is often not wasteful, because the food lasts longer. A study showed that only 3% of wrapped food was wasted in the UK, but up to 50% of food was wasted in an African country, where it was sold unwrapped.