Compare your grinding results

The function particle size vs. volume or area is called grind size distribution or histogram. With the help of this function (and its mean value) Coffee Grind is able to compare different brews, grinders or beans. You can also find out if your grinder burrs are still sharp or need some maintaince. Below an example grind size distribution produced by Coffee Grind

Example grind size distribution produced by Coffee Grind

The Area Diameter (sometimes called Equivalent Disc Diameter (ED)) is the diameter of a circle having the same area as the particle.