Folding a chip bag closed is a simple but effective way to keep your chips fresh and prevent them from getting stale. When a chip bag is opened, the air inside the bag comes into contact with the chips, which causes them to oxidize and lose their flavor. Folding the bag closed helps to create a barrier between the chips and the air, which slows down the oxidation process and keeps the chips fresher for longer. There are several different ways to fold a chip bag closed, but the most common method is to fold the top of the bag over twice and then roll it down tightly. This method creates a tight seal that helps to keep the air out and the chips fresh.
In addition to keeping chips fresh, folding the bag closed can also help to prevent spills and messes. When a chip bag is open, it is easy for chips to fall out and make a mess. Folding the bag closed helps to keep the chips contained and prevents them from spilling out. This is especially important if you are taking chips with you on the go or if you have small children who are likely to make a mess.