Spent Brewing Grain: Do a Bunch of Cool Stuff With It
Once you make beer with malted grain, there’s not a whole lot you can do with it. Most big breweries end up sending it either to livestock or to a middleman who sells it to farmers who feed it to livestock. Hate to say it, but a ton of smaller breweries just chuck it in a dumpster. You can re-purpose it into baked products, but a single kitchen storage container of grain will make roughly infinity crackers.
All that said, there’s some pretty enjoyable stuff to make at home if you’ve got a friendly brewpub who will pass you a tub of fresh grain. (And it has to be fresh — spent grain gets stinky and inhospitable to humans fast unless you refrigerate it.) There’s a killer loaf of bread, some tasty sausages based on recipes from when sausage was stretched with cereal grains, and the aforementioned infinity crackers. They taste great with cheese.