Potato mashers have many other uses apart from simply mashing potatoes. There are a variety of other cooked foods that they are also effective at mashing, such as most fruits and vegetables. Cooked apples may be mashed down into apple sauce, and beans can be made into refried beans, thanks to the potato masher. Some people even use their potato mashers outside of the kitchen. The type with the wave design tends to work well as a gardening tool as well.