At our Golden Brewery in Colorado, we are going further to recover valuable spent yeast from our brewery process. By drying the spent yeast, we are able to produce useful by-products such as brewer�s yeast, water and ethanol. Brewer�s yeast is dense in nutrients and protein and can be used as a nutritional supplement, a probiotic and to aid digestion. We partner with pet food companies to use the dry brewer�s yeast from the Golden Brewery in their products. The ethanol generated from this process is an exceptionally valuable source of carbon as well. We have partnered with the City of Boulder to treat local municipal wastewater using this ethanol through a process called denitrification. The ethanol assists in removing nitrogen from wastewater by acting as a food source for microscopic bacteria that convert nitrate into harmless nitrogen gas. By providing the city with a consistent supply of ethanol, we are capturing a brewery waste product and using it to create cleaner water in the state of Colorado. This has not only reduced the amount of waste generated by the Golden Brewery, but has also become a crucial solution to Boulder�s wastewater management strategy. Thanks to these efforts, and other partnerships that we�ve formed to help upcycle our waste into valuable products, our Golden Brewery sends zero waste to landfill.