When you're serving fried foods or sandwiches that are packed with delicious fillings, you need to make sure that customers aren't getting covered in grease or sauce as they try to eat. Although napkins will help to keep their hands clean, greaseproof paper is a must for wrapping up your burgers, chips, hot sandwiches, and so on. It will help to keep grease and juices from soaking through boxes when food is in-transit, and can be used to keep your customer's hands cleaner when they are eating on-the-go.