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Grind size and why it matters
Grind size changes how fast water moves through your coffee, which changes how it tastes. Too fine and a pour over turns bitter and clogs up. Too coarse and your espresso runs through watery and sour, with no body.
Match your grind to your brew method first, then fine tune by taste. It is the single biggest thing you can change to fix a bad cup.
Finding the right grind
Start coarse for filter brews and fine for espresso, then adjust from there.
A burr grinder gives you an even grind, which is why we always recommend one over a blade grinder.
If your coffee tastes sour, try grinding finer. If it tastes bitter or harsh, go coarser. Small changes make a big difference, so adjust a little at a time and taste again before changing anything else.
Getting it right at home
We get asked often why two bags of the same bean can taste different at home. Most of the time it comes down to grind size, not the beans themselves. A grinder that cannot hold a consistent setting will give you an inconsistent cup, no matter how good the coffee is.
Buy the best grinder you can afford before you spend more on beans. It changes your coffee more than almost anything else in your setup.
