The term 'Malt Dryer' is related to the job of an OAST, which is a four-letter word. An OAST is a building used for drying hops and other crops, such as malt. The malt dryer is a machine used in the OAST to dry the malt. It works by circulating hot air through the malt, which removes the moisture from it. The malt dryer is an important part of the OAST, as it helps to ensure that the malt is dried properly and efficiently.