Brewing by-products are already in demand by feedlots
Actually, the more common use for brewing and distilling byproducts is feeding it to livestock. When I was growing up my family had a hog farm, and we used to get "brewer's grain", the leftover barley from making beer. It was an excellent feed (no, the hogs didn't get drunk, although they did put on an extra layer of backfat).
Today with the US drought, hog and cattle farmers are feeding whatever they can get their hands on. I just heard that cattle feedlots are feeding their cattle surplus gummy worms. Brewers and distillers wanting to get rid of their byproducts will probably find more money selling it to feedlots. There may cases where local brewers and distillers don't have feedlots nearby, but generally it will always be in great demand by the livestock industry.
