Question 1

Is 6 on a Wilfa Svart the same as 6 on a Niche Zero?

Accepted Answer

No. The two grinders count in different steps, so the same number gives a different grind. 6 on the Wilfa Svart matches about 0.45 on the Niche Zero.

Question 2

How accurate is this conversion?

Accepted Answer

It is a starting point. Both grinders are mapped to particle size in microns, fitted from the Honest Coffee Guide charts for each brew method, not from manufacturer burr-gap specs. Beans, roast and burr wear change the result, so adjust by taste.

Question 3

The coffee tastes sour or bitter after converting. What should I change?

Accepted Answer

Sour and thin: grind finer by a step or two. Bitter and harsh: grind coarser. Change one thing at a time.

Brew method	Wilfa Svart	Niche Zero
Espresso~250 µm	Too fine	0.20
Moka pot~350 µm	2	0.28
AeroPress~450 µm	4	0.36
V60~560 µm	6	0.45
Chemex~700 µm	9	0.56
French press~900 µm	14	0.73
Kalita Wave~600 µm	7	0.48
Cold brew~1100 µm	18	0.89
Siphon~650 µm	8	0.52

Wilfa Svart to Niche Zero

Settings by brew method

Go the other way

More about these grinders

Questions

More conversions