title_body: What’s the best all purpose zero retention grinder for single dosing?
upvoted_answer: I have a Baratza Sette 270 along with the S2 Cone Burr which is better suited for courser grinds and have been very happy with the result.
  
  
  
  I like it for its vertical drop of the beans straight through the blades into the cup, rather than having to be shunted to a chute off the side.
  
  While I find I still have to use the Ross Droplet Technique and give a few slaps on the lid during the last couple of seconds while it is grinding, when I do that, weighing the coffee before and after shows little or no difference before and after. (Can't say the same for my previous grinders that I had to thump hard to get all the grinds out.)
  
  I use it happily for aeropress, moka pot and siphons. The reviews mention there's an upper limit of the coarseness the Sette's can produce, but it has been fine for me so far.
  
  There's also the 30 and the 270Wi models in the Sette range depending on the features you want and your budget.