Charts, calculators and tables to keep open while you brew. Every figure links to the vendor, agency or study it came from.
Water temperature in °C and °F, leaf per 100 ml, steep time and infusions for 11 tea types, western and gongfu.
TableBitter, astringent, flat, stale, cloudy iced tea, film on top, clumpy matcha: cause and fix for each.
CalculatorGrams of leaf for any mug, gaiwan, teapot or pitcher, for western, gongfu, grandpa and cold brew.
CalculatorCost per cup of loose leaf, counting re-steeps, against tea bags and a cafe cup, per year.
ScheduleHow often to descale by water hardness in ppm, plus the citric acid method.
TableGrams per litre and fridge hours for green, white, black, oolong, herbal, rooibos and sencha.
Data reportUS consumption, iced share, retail sales, and world production, exports and consumption by country.
GuidesStep-by-step guides for gongfu, western, kyusu, matcha, grandpa style and cold brew.