Dried lemon slices and green tea are drinkable when soaked together. Lemon slices contain citric acid, and green tea contains theophylline and caffeine, which are combined to form citrate alkaloids, which are easy to absorb, dilate the trachea and refresh the mind quickly. It has detoxification and lipid-lowering effects, because green tea contains catechins such as EGCG, which has the effects of resisting free radicals, preventing oil peroxidation and reducing the contents of low-density cholesterol, ultra-low-density cholesterol and triglycerides in blood. However, it needs to be drunk continuously for a period of time to be effective. But don't drink strong tea.