Beer maker transforms brewing waste into denim jeans | NBWA: America's Beer and Beverage Distributors

A Japanese beer maker is using upcycling technology to turn waste products from the brewing process into blue jeans, winning the company new fans in the process. While brewing by-products such as malt dregs are often discarded, Sapporo Breweries recently learned that the sediment can also be transformed into clothing. Already skilled at upcycling food processing waste for clothing, Shima Denim Works created the jeans by first transforming the lees into "washi," a Japanese-style paper. Next, the washi is used to spin yarn that's then woven into denim, with the finished product described as "light and breathable."