Minecraft wiki entry for Smoker, associated text: Smokers are used to cook food items twice as fast as a regular furnace. It is the counterpart to the blast furnace, which is used to quickly smelt ores, metal tools and armor. When a food item and a fuel item is placed into the smoker, the block state changes to lit and the item cooks. Fuel is used at double the rate of regular furnaces, so the number of items cooked per fuel stays the same. The product can then be collected by pressing use on the smoker or by collecting the output using a hopper.