Sweet corn is suitable for making canned corn. Sweet corn cultivars have a recessive gene, which prevents some sugars from turning into starch during the maturation process, so the corn is sweet after ripening. When processing sweet corn can, the spike corn is transported to the factory, the top of the corn cob is cut off by machinery, and the corn cob is washed with a high-pressure water gun. It is difficult to remove all the corn from this step, and there will always be a part of the corn and grain to go to the next step. If the use of colorless corn varieties, the final product is not easy to see the corn must come.