This is not in any way precise, but just what I learned from playing with the Lido 3 and Kruve for a while today and weighing results on the Lunar.

Put in 18g at grind setting 8 (my grinder hits zero at -2 )
Sieved initially with 1100 and 800 screens:

7g < 800
6.5g from 800 to 1100
4g > 1100.

Then swapped the 800 screen for a 500 screen and re-sieved:

2.5g < 500 (this was dust - literally like talcum powder)
12g from 500 to 1100 > the good stuff.
2.5g > 1100 (large boulders of coffee and chaff)

The 500 and 1100 micron combination seemed like a reasonable way to narrow down the grind size without wasting too much as a basis for brewing in my Bonavita manual immersion brewer unless anyone thinks a different sieve setting would be more useful?

You started out with 18g and ended up with 12g of "good stuff". You could recover a bit more by re-grinding and re-sieving the boulders, but still seems like a lot of waste. How did it taste versus unsieved? It would have to be a big improvement to merit so much waste.

Simon345 wrote:Sieved initially with 1100 and 800 screens:

7g < 800
6.5g from 800 to 1100
4g > 1100.

Then swapped the 800 screen for a 500 screen and re-sieved:

2.5g < 500 (this was dust - literally like talcum powder)
12g from 500 to 1100 > the good stuff.
2.5g > 1100 (large boulders of coffee and chaff)

Sorry - not tracking here very well. Might need another cup to get the brain moving, but:

Did you re-sieve the same grounds with the 500/1100 that you'd previously sieved with the 800/1100? Confused as to how the amount of > 1100 grounds are so different between the two sievings...