Using this grain storage container is easy. First, open the container and pour your favorite whole grains into it. You can use the included measuring cup to take out the right amount of grains you need. When it's time to clean the grains, simply put them in the measuring cup and wash them. The water will drain out easily. As for maintenance, wash the container and the measuring cup with mild soap and water regularly. Keep it in a dry and cool place. Be careful not to drop it as it may crack. Also, don't expose it to high temperatures as the PP polypropylene material might get damaged.