events.listen('recipes', event => {
    event.recipes.pneumaticraft.pressure_chamber({
   
        "inputs": [
            {
              "type": "pneumaticcraft:stacked_item",
              "item": "minecraft:packed_ice",
              "count": 4
            }
          ],
          "pressure": 2.5,
          "results": [
            {
              "item": "minecraft:dirt"
            }
          ]
   
   
   
        
    })
  })