French Press Math

[mosesbotbol]

Originally Posted by BSB

I just use the scale every time, press or drip. It's there, why not get it right? Plus, different beans and different roast levels, change weight-volume ratio.

How do define different beans to roast levels, vs. addding or substracting weight? How far or a swing in weight will there be between extremes and do you think you can tell side-by-side a slight weight variation between pots of coffee?