Here is a graph of the grind size adjustment for different grammages with the 46mm basket. For this test I kept constants: 1:2 ratio, 9 bar and then aimed for 30s. If to fast a flow I went finer to adjust until I got 30s. I have kept the error range in there. For comparison, at 10g, the grind size is similar to my IMS competition, 58mm. Here the grind settings for 30s flow - left to right: 10g, 14g, 18g And here the pucks - left to right: 22g, 18g, 14g, 10g

I used 4 baskets with different diameter to test the grind size adjustment. I kept all other variables constant, like flow rate, pressure and time of shot. Some things of note: My 50mm basket is a high flow version - more on that later. 58mm basket is an IMS compeition 46mm is my GRAPH 36mm is a prototype made be me Please note, I have shown inside diameter of the basket - 36mm, 46mm, 50mm (aka 49 in the La Pavoni world where dimension was based on the tamper rather than ID),

This basket should fit most 58mm machines. If your machine uses a standard 58mm basket and is used at the recommended doses, it should...

So stoked to have a shout out from Lance Hedrick. WOW. Go to minute 7:32.

awwww Bringing the samples together for the first time.

After 3 years of designing my own manual coffee press as a hobby, I did some comparisons to other machines and noticed that a Flair Pro...

Fine adjustment ahead of manufacturing run. Tamper base plate dimension 45.8mm +-0.1mm. And fit of the funnel for minimal gap ~0.25mm.

I received the first sample from manufacturing. This first sample had more rounded edge at the base of the basket to help the material...

I took some microscope images of stamped and lasered baskets. quite interesting to see the different approaches Top row, left to right -...