13 Mar '12, 4pm

Anheuser-Busch turns beer leftovers into usable products

Now you can feel good after knocking back a few brewskis — and not just because you’re tipsy. Beermaker Anheuser-Busch has found a way to turn its waste grain into an array of products, from clothes to cosmetics to biogas. The beer behemoth has partnered with a company called Blue Marble Bio , which plans to set up large-scale biorefineries at Anheuser-Busch breweries that will use naturally occurring bacteria to break down spent grains using proprietary “polyculture fermentation technology .” That process will create both biogas, which can be used to generate electricity, and chemical compounds called carboxylic acids that are used to make everything from nylon to soap to food additives to floor polish. This could be a great way to cut back on the mountains of waste generated by the beer industry (and remove the guilt associated with an epic hangover). Beermakers use abou...

Full article: http://grist.org/list/anheuser-busch-turns-beer-leftovers...

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