It’s been a long time since my last using DiFluid coaster, until finally I got the grinder that using micron or micrometer (µm) as their ground size (GS). Not really Omnia :). This one came from the country with highest GDP growth from maybe last 30 years, I think you all already know. I want to compare about their claim and the DiFluid database based on click to approx. GS.
Our Lab (DiFluid Coaster, Brush, C3, and Coffee Grounds)
The grinder that will use is:
- Wendougee Milo (Electric grinder with flat burr)
- GS: 700 µm
- RPM: 309
- Timemore C3 (Hand grinder with conical burr)
- GS: 722 µm (19 click)
- RPM: 50–120 (approx.)
First thing first, I want to use the provided ground size from both, the Milo is directly from the machine set while the C3 is based on the CoffeeOS Grinder Converter module. All I set is to 700 µm.
Milo GS Setting C3 GS Setting in micron
C3 GS Setting in Click based on Grinder Converter
The first one I try to took a photo for the Milo, and turns out into questioning their claim, is it really that far? If you wondering too, here is the result:
Particle Analyze for the Milo that set into 700 µm with 309 rpm
For the desired micron is only around 13% from total distribution, the D50 of Percentile 50% is 1777 µm, two times coarser if compared to their setting, in this point, I think they still far away from Omnia :) but …
I try to forget our disappointment and looking forward to our beloved hand grinder, the C3 (the very first grinder that I own). I have many believe in this, the result will be very similar into DiFluid grinder converter data. With the 19 clicks, at least I will get the D50 for 700 µm, but (2) …
Particle Analyze for the C3 that set into 722 µm or 19 clicks
Too far from our estimation, 700 into 1580 µm. At this point I think my phone’s need to replace :). Then go with my wife’s phone (the better one from mine) and still not see any difference for the result.
Actually, I’m not brewing that coffee, just curious about the claim and the empirical results. Maybe this one can be the article that can make my wife believe that the Omni is needed for my next toys :).
So, I think the result is not that bad, cause those both grinder resulting the similar result: two times higher based on first assumption (actual and converted GS).
I really appreciate the DiFluid team that provides many tools and apps that can be used easily for us as home brewer to understanding deeper about these things.