Andrew Price 03.09.12 12:15 AM The end result of beer isn’t just a bad hangover, it’s also millions of tons of grain that gets thrown out. But a new company is making headway in turning all that after-beer into energy, and more. Newsletter Get the latest Fast Company stories delivered to your inbox daily. Send I'd also like to receive special Fast Company offers ARE YOU REGISTERED TO VOTE? Register now to make sure you have a voice in the election.