matcha bars in london

matcha quality is decided before it gets to the bar. the leaf grade you're drinking matters most, then the water temperature, then the whisk. ceremonial grade matcha is shade-grown for at least twenty days before harvest, stone-ground in granite mills at a rate of about thirty grams per hour, and stored away from light, oxygen, and heat. the bright jade colour is the tell. dull olive matcha is either old or low-grade. the producers london's top matcha bars source from are a small set. uji in kyoto prefecture (marukyu koyamaen, ippodo, yamamasa koyamaen). nishio in aichi prefecture (aiya, marushichi). kagoshima for the umami-forward, slightly nutty styles. each region has a distinct profile. uji is grassy and sweet on the front. nishio is rounder and creamier. kagoshima carries more depth and a slight nuttiness. water temperature is the make-or-break. matcha at boiling extracts bitter compounds the leaf wasn't designed to share. seventy to eighty celsius for usucha (the lighter, frothier style), sixty-five for koicha (the thicker ceremonial style). if your barista is filling the cup from the same boiling tap they use for the americano, the drink is already wrong. whisk style separates a tea person from a drink seller. a proper chasen, the bamboo whisk with a hundred and twenty fine prongs, is what makes the foam. a milk frother does not. watch them at the bar. milk choice is taste. oat works for the london palate. the purists drink it straight, hot water only, no milk.