Buy green tea online in loose leaf & pyramid tea bags at Fernweh Agro. Sourced directly from darjeeling tea estates. A zero-calorie beverage, Fernweh Agro green tea contains the highest amount of antioxidants. It is because of the low processing of it for oxidation. About 20% of the total tea consumption of the world is green tea. It contains low caffeine content and polyphenols, which reduce cell damage.