{
  "type": "create:mixing",
  "ingredients": [
    {
      "item": "minecraft:copper_ingot"
    },
    {
      "tag": "forge:ingots/zinc"
    }
  ],
  "results": [
    {
      "item": "create:brass_ingot",
      "count": 2
    }
  ],
  "heatRequirement": "heated"
}