Yes, oily grains can damage a grain mill when their fat coats the grinding mechanism, causes clumping, restricts airflow, or forces the motor to work harder than designed. High-fat foods such as flaxseed, sesame, sunflower seeds, peanuts, and some corn varieties are more likely to leave residue than dry wheat or rice.
Can Oily Grains Damage a Grain Mill? Foods, Warning Signs, and Safer Milling Steps
