HOW MUCH COFFEE TO WATER
six methods · weight, grind, time
$2.50
MATCHA DRINKS
six proportions · grams, millilitres, degrees
$1.50
TEA PLANT CULTIVARS
assamica against sinensis · leaves at one scale · six cultivars
$1.50
WINE TEMPERATURE
neither from the fridge nor from the room — not one of them
$2.50
IMPERIAL UNITS
convert in your head · without a calculator
Free
PAPER SIZES
the A series · from A0 to A6
$1.50