Houjicha looks like black tea, but it's actually made from green tea. It has a reddish brown color and roasted fragrance. The process of making Houjicha make it contain less caffeine as compared to other green teas.
Houjicha is Japanese green tea that roasted at 200C, this process reduce the bitterness and cafeine. Houjicha has a roasted flavour and some people say it taste like black coffee.