1. Provide antioxidant protection: Cold brewed tea is rich in polyphenols, such as tea polyphenols and catechins, which can provide strong antioxidant protection and reduce free radical damage and oxidative damage.

2. Lowering blood pressure and cholesterol: Tea polyphenols and catechins in herbal tea can lower blood pressure and cholesterol and prevent cardiovascular diseases.

3. Enhance immunity: Tea polyphenols and catechins in herbal tea can enhance immunity and prevent diseases.

4. Spiritual refreshment: Caffeine and theanine in herbal tea can effectively improve attention and mental state and enhance work efficiency.

5. Lowering body temperature: Herbal tea has a cooling effect, which can relieve physical discomfort in hot weather or fever.

6. Diuretic swelling: Diuretic ingredients in herbal tea can help the body to discharge excess water and relieve edema and edema.

7. Relieve anxiety and stress: Theanine in herbal tea can relieve anxiety and stress and help to relax.