Pump dispensers are simply heated kettles that feature a manual pump on top that pulls up and dispenses the hot butter, or butter-flavored, topping. Pump dispensers are typically the most economic type of hot butter dispenser, but they are also extremely useful for portion control. Unlike push button dispensers, pump dispensers portion out consistent amounts of hot butter with each pump. Their consistent portioning helps you to control your costs and ensure a consistent product every time. Push-button dispensers, on the other hand, are extremely easy to use and are ideal for self-serve butter stations in movie theatres.