How To Pasteurize Coffee Grounds. As a fertilizer, coffee grinds can be sprinkled directly on the ground by many individuals. Pain in the ass, but for what most people need this method will work.
There are a few different reasons why adding coffee grounds to the soil around your favorite plants can help them grow strong. Be sure not to go beyond these measurements. There is no need to sterilize or pasteurize used coffee grounds, since the brewing process does that.
