{
    "format_version": "1.20.10",
    "minecraft:recipe_furnace": {
      "description": {
      "identifier": "minecraft:furnace_deepslate_copper_ore"
      },
  
      "unlock": [
      {
        "item": "minecraft:deepslate_copper_ore"
      }
    ],
      "tags": ["furnace", "blast_furnace"],
      "input": "minecraft:deepslate_copper_ore",
      "output": "minecraft:copper_ingot"
    }
    
  }