If your goal is to start drinking more green tea, flavoured green tea is a great place to start. Make sure your water isn't too hot and don't let it brew for too long. These are all ideal for icing too! Green tea contains low levels of caffeine. 12g of each: Mango Sencha, Grapefruit Sencha, Sencha Echinacea, Cherry Blossom Sencha and Ginkgo Sencha.