When paired with the included bright red polypropylene lid, it keeps food fresher, longer, than when covered with traditional foil or plastic wrap. It also allows you to easily identify and track the date your food product was made, thanks to the convenient, reusable "date" indicator at the bottom of the container. Plus, the lid provides a safe, secure seal to prevent outside contaminants from getting in, and messes from getting out. The container and lid are able to withstand temperatures from -32 to 160 degrees Fahrenheit, making it perfect for restaurants, caterers, delis, and cafes.