Spent Grain Dryer
Spent grain in the brewing and distillation industries is a by-product produced through the extraction of malted grains fermentable sugars.
Functionality and Design
Spent grain dryers work on the principle of using hot air or steam to get rid of the moisture contained in the grain. The design usually consists of a drying chamber where spent grains are spread out evenly. Once the passing hot air circulates around, it absorbs moisture, which is expelled to give dried grains. Modern dryers have variable temperature and airflow so the operator can set them according to grain type and the percentage of moisture required. Indeed, advanced versions come with sensors that work on detecting humidity for providing adequate drying without over-processing.
Benefits of Using a Spent Grain Dryer
Longer Shelf Life: Spent grain in its dried form decreases in moisture content. Therefore, the time it takes to spoil can be extended, since it is easier for breweries and distilleries to keep stock on hand. It provides expanded opportunities for manufacturers of their grains to make sales throughout the year.
Nutritional Value: Even dried spent grain contains a high level of protein and fiber, hence because of this reason, it proves to be one of the best ingredients for animal feed, when used in baked goods and snacks. Nutritional analysis showed that spent grain contains essential amino acids and antioxidants, which are useful for livestock and human consumption.
Value for Money: A spent grain dryer reduces the cost of waste disposal and, further than this, assists in earning extra through the sale of dried grains or their by-products. Besides, companies can reduce their feed costs by replacing traditional feed ingredients with the high-quality dried grains.
Sustainability: The reutilization of spent grain will further the breweries’ and distilleries’ search for sustainability. This environmental complementarity, as in the case of reduced waste, is a social request that end customers more and more often require. Further, this pledge would improve a brand’s image and would attract green consumers.
Other Uses Than Brewing
Spent grain, dried, has other uses besides animal feed. It can be used in a wide range of food products, like bread, granola bars, and energy snacks, enhancing their values. New recipes are being developed involving the usage of spent grain flour, which gives it a peculiar taste and texture. Furthermore, some companies are in discussion for its use in the creation of bioenergy, thus creating some form of circular economy whereby by-products themselves are converted into sources. The dried spent grain can be utilized in the production of biogas or even used as a substrate for the growth of mushrooms; therefore, this biomass has a wide application in different sectors.