This means there are thousands of these grinders out there where the number on the adjuster scale cant be compared to any other grinder of the same type, for a similar grind setting.
And that's ok, because it doesn't need to.
What is important for the operator (barista, whoever) to know however, is that to reset the grind after replacing the plates, all that needs to be done is to wind the adjuster all the way down until the plates touch, then back off say 1/3 to 1/2 a turn, grind some coffee, make a brew, and reset for fine adjustment. It wont be far out. Whatever number it ends up on is irrelevant in the big picture, because it is up to the operator to know what he/she is doing and rely on his skill to find the right grind setting, rather than to stick it on an arbitrary setting and hope its right.
In effect the number on the scale your individual grinder ends up on, is relevant only to you in that you can make changes according to the supply of beans, their age, and ambient weather conditions, and know what your reference starting point was.
Hope that helps


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