Brewer's spent grain (BSG) or draff is a food waste that is a byproduct of the brewing industry that makes up 85 percent of brewing waste. BSG is obtained as a mostly solid residue after wort production in the brewing process. The product is initially wet, with a short shelf-life, but can be dried and processed in various ways to preserve it.

Introducing the method of drying brewer's spent grain

The distiller's grain dryer is mainly composed of a heat source, a feeding machine, a drying drum, a transmission device, a feeding machine, an induced draft fan and a power distribution cabinet. Under the turning of the plate, it is fully contacted with the hot air, and the water of the lees is quickly evaporated and gasified, and the drying is completed, and it is discharged from the discharge port.

This brewer's grain dryer has a high degree of mechanization, large production capacity, high efficiency and environmental protection.