All About Tea — yellow tea

As we have discussed in other articles the world of tea is often divided into two groups: true teas and herbal teas. True teas are made from the camellia sinensis plant and contain naturally occurring caffeine. Herbal teas on the other hand are produced from non-camellia sinensis ingredients like hibiscus, rooibos, and lemongrass just to name a few. So just how much caffeine do all of these teas contain?