Vitablitz black tea has a fragrance of flower, pleasant astringency taste, and the color of red transparent. The color of brewed black tea varies from yellow - red - blown. Clean color. High-quality black tea often has a bright red tea infusion, mellow taste, and rich aroma. Black tea contains 2% to 4% caffeine, which affects thinking and alertness. Used of black tea : - Improving mental alertness - Reduce headache - Maintains blood pressures normal - Prevent depression , dementia and stroke Packing 1Kg tea leaves in a Zip Bag