{
  "type": "forge:conditional",
  "conditions": [
    {
      "type": "tconstruct:tag_difference_present",
      "base": "forge:ores/iron",
      "registry": "minecraft:item",
      "subtracted": [
        "forge:ore_rates/sparse",
        "forge:ore_rates/dense"
      ]
    }
  ],
  "recipes": [
    {
      "conditions": [
        {
          "type": "forge:true"
        }
      ],
      "recipe": {
        "type": "tconstruct:ore_melting",
        "byproducts": [
          {
            "amount": 180,
            "tag": "forge:molten_iron"
          }
        ],
        "ingredient": {
          "type": "forge:difference",
          "base": {
            "tag": "forge:ores/iron"
          },
          "subtracted": [
            {
              "tag": "forge:ore_rates/sparse"
            },
            {
              "tag": "forge:ore_rates/dense"
            }
          ]
        },
        "rate": "metal",
        "result": {
          "amount": 180,
          "tag": "forge:molten_iron"
        },
        "temperature": 800,
        "time": 150
      }
    }
  ]
}