{
  "format_version": "1.12",
  "minecraft:recipe_brewing_mix": {
    "description": {
      "identifier": "minecraft:brew_poison_redstone"
    },

    "tags": [ "brewing_stand" ],

    "input": "minecraft:potion_type:poison",
    "reagent": "minecraft:redstone",
    "output": "minecraft:potion_type:long_poison"
  }

}