Brewing beer requires a lot of energy since it involves heating large amounts of water and tossing in a bunch of plant matter. From there the plant matter gets tossed into compost (or in some places a landfill) to be reused. This plant matter is known as spent grain and you can use it again before it ends up as compost. A company called Regrained is taking those spent grains from brewers and turning them into food!
I’ve home-brewed beer and have used the spent grains to make cookies, and you can too. Here’s a guide how to prepare spent grains for baking if you also make your own beer.
That six-pack of IPA you enjoyed on Friday night generated about a pound of waste in its making. After brewers soaked barley (or sometimes other grains) in hot water and extracted the liquid to make beer, they’re left with a lot of spent grain on their hands. Most rural breweries, like Northern California’s Lagunitas or Sierra Nevada, haul the byproduct to nearby farms, which feed the grain to their animals. Others recycle it as compost. But for smaller breweries in urban areas, miles away from hungry pigs, figuring out what to do with the leftovers isn’t always easy.
The company Regrained turns that spent grain into snack bars. At a Meetup event in the Mission district of San Francisco, curious eaters lined up around the company’s booth, intrigued by the displayed logo “Eat Your Beer.” Cameron Schwartz, a tall man wearing a T-shirt with the same words, explained how his brother and buddies—all home-brewers—decided to open a business that takes beer byproducts and bakes them into bars, costing $2.50 a pop and sold at local grocery stores. So far, ReGrained has worked with three breweries in the Bay Area.