Tobacco Curer is a job that involves using an OAST, which stands for 'Ovens and Stoves for Tobacco'. This job requires the use of an oven or stove to dry and cure tobacco leaves. The curing process helps to reduce the moisture content of the leaves, allowing them to be used in the production of cigarettes, cigars, and other tobacco products. The curing process also helps to improve the flavor and aroma of the tobacco.