what is a beer keg made out of
Keg More recently, a keg is often constructed of aluminum or steel. It is commonly used to store, transport, and serve beer. Other alcoholic or non-alcoholic drinks, carbonated or non-carbonated, may be housed in a keg as well. Such liquids are generally kept under pressure.
Beer in Ireland Lager accounts for 60% of the beer sold, stout 34% and ale 6%.[2]