A conical burr grinder is recommended because it produces a more consistent, even grind with less heat generation compared to flat burrs, resulting in a smoother, more balanced flavor profile. Please don’t use that old school 2 blade grinder that your mom had. It only breaks the coffee beans into a million different sizes, not allowing for a consistent flavor profile.
Below are grind, water, and temperature recommendations based on the type of brew you enjoy using.

Grind Amount: 20 grams
Grind Setting: Medium
Water Amount: 320 grams
Water Temperature: 202 F / 94 C
Brew Time: 3 minutes

Grind Amount: 42 grams
Grind Setting: Coarse
Water Amount: 525 grams
Water Temperature: 204 F / 96 C
Brew Time: 5 minutes

Grind Amount: 18 grams
Grind Setting: Fine
Water Amount: 42 grams
Water Temperature: 201 F / 92 C
Pull Time: 20 -30 seconds