White tea (camellia senensis) undergoes very little processing and the absence of this purity may be what might cause white tea to have a greater concentration of cancer fighting antioxidants than all other teas. White teas have all of the benefits of green tea and are the most delicate of all, their taste being subtle, complex and mildly sweet. Uncle Lee's Organic Lemongrass Jasmine White Tea is cooling and calming. Lemongrass is well noted by herbal professionals as a cooling herb and is known to reduce fevers, cleanse as well as enhance immunity. Jasmine is also cooling and is known to calm the nerves and adds a wonderful aroma to the blend. Both herbs are the perfect compliment to the yin energy of white tea. Because there is very little processing with white tea, the caffeine content is low at approximately 15 to 20 mg per cup. Green tea contains 20 to 30 mg. per cup, black tea contains 80 to 120 mg. per cup and coffee contains 100 to 200 mg. per cup.