Large Drum Flakers are used to transform a molten product into a solid. In a continuous process a thin layer of the product adheres to the outside of the rotating drum. The product congeals when it comes into contact with the surface of the drum flaker, which is cooled from inside. The crystallization heat is transferred from the product via the drum to the cooling agent and the desired temperature is achieved. When the drum has almost completed a full revolution the product is removed from the drum with a knife scraper. During this process, the product is transformed to easily processable flakes, depending on the type of product and process parameters.