Minecraft wiki entry for Chorus_fruit_farming, associated text: Chorus plantations are mainly used to craft purpur blocks for construction. Chorus fruits are first popped in a furnace, then crafted into blocks with a production ratio of 4 fruits for 4 blocks. This setup works best when adding a group of furnaces and a renewable source of fuel, such as a tree farm which provides logs, which can be smelted into charcoal. This combination is self-sufficient, which means it can be built anywhere regardless of available resources, such as space between the End's central and outer islands or space above the Nether's top bedrock layer.