Grind size is one of the most important variables in coffee brewing. Learn how fine or coarse your coffee should be for espresso, V60, French press and AeroPress, how grind size affects extraction, and how to adjust your grind when your coffee tastes sour, bitter or weak.

Coffee processing has a major influence on the flavour and character of the final cup. Learn how washed, natural, honey and experimental coffee processing methods work, how they affect flavour, and what coffee drinkers should look for when choosing processed coffee.