A dragon bitter (barrel) flatpack can be made at a workbench (Oak workbench or better) in the workshop of a player-owned house. This requires 36 Construction and 39 Cooking, uses 3 oak planks, 2 steel bars, 8 Dragon bitters and gives 224 experience. The flatpack can then be used on the beer barrel hotspot in the Kitchen while in building mode. This requires no Construction level and gives no experience. The cost of making and selling a dragon bitter flatpack from scratch gives a profit of .