{
  "type": "thermal:smelter",
  "ingredients": [
    {
      "value": [
        {"tag": "forge:dusts/coal"}
      ],
      "count": 1
    },
    {
      "value": [
        {"item": "minecraft:iron_ingot"}
      ],
      "count": 1
    },
    {
      "item": "minecraft:obsidian",
      "count": 1
    }
  ],
  "result": [
    {
      "item": "kubejs:darksteel_ingot",
      "count": 1
    }
  ],
  "energy": 12000
}