When we first started the venture on determining which matcha to use for our first grand line of health product, we tested a lot of matchas. From Japan to China, various matcha from organic to non-organic from AA grade to AAAAA grade and with different finesse and colour. What we have found that matcha, be it from Japan or China, has to be determined by this method :- 1) Umami 2) Astringency 3) Aftertaste Because matcha nowadays has been really popular, especially from one part of Japan that is