I noticed this when looking into coffee grinders. A commercial one is a problem at home unless you make 20 coffees a day because it is going to retain a lot of

I noticed this when looking into coffee grinders. A commercial one is a problem at home unless you make 20 coffees a day because it is going to retain a lot of grinds (not a problem if you have a lot of throughput, it won't go stale). It will also be noisy and big. A prosumer one should be quite and good for not retaining grinds, but would be bad for commercial as it wont be fast enough (ten times slower), and you you don't want to wait grind for every shot. Also a prosumer one would look nicer probably.