Accessory - A submersible cooler for making home-made craft beer beer, 20 cm diameter hollow spiral of the Klarstein Chiller with 9 cooling loops, hollow spiral is connected by hose to a faucet or a cooling circuit and dipped into the hot mash and then, it can quickly cool the mash down to ensure a quality beer, prevents the appearance of unwanted microbes in your brew, also helps to separate any unwanted components from your future beer, 5 litres of boiling mash can be cooled to room temperature in just about 30 minutes