As a flavor improver and flavor enhancer, ethyl maltol is used more and more widely. It is recognized as a food additive that is safe, reliable, low in dosage and effective in effect. It is a good aroma enhancer for tobacco, food, beverage, flavor, fruit wine, daily cosmetics, etc. It has a significant effect on the improvement and enhancement of the flavor of the food, plays a sweetening effect on the sweet food, and can prolong the storage period of the food.