Its imperative that you avoid letting the mass of grain go septic (anaerobic). The smell is horrendous!I learned that the hard way the first time I chucked a load of grain in the composter. Whoa! Made me wanna put my head in a dumpster for some fresh air
Absolutely. The best way of doing this is to add in a lot of carbon(brown material) like paper or wood and to make sure the pile is well mixed so there are no pockets of anaerobic activity. I use free woods chips from our county. Spent grain has a lot of moisture in it already so this is even more important to mix well and add carbon. Vegetables scraps, Coffee, Grass clippings, and green leaves/plant cuttings are green material. The more you have of them in the compost pile the more carbon you have to add to the spent grain. If you have a compost pile already, cover the grain with composted soil after mixing in the carbon. Covering the spent grain will help keep the smell down and unwanted pests like mice and rats away. I live in an urban area and our yard is small, so I have to pay attention to our compost pile or our neighbors will complain. I think the most I put in my compost bin in a week was 40 to 50 lbs without problems.+1 That's always a good way to get rid of shredder paper. I've got a bin composter. I'll put a little paper in, then the grains, and cap it with some more paper. Keeps the stinkies down!