I am using a Mahlkonig Vario and Kruve to brew coffee with V60. I have the coffee dose freeze in vacuum bags (15 gr.), I grind the coffee and sift with the Kruve (the sieves are 400 and 800, the recomendation for V60).
My first problem is: I don’t obtain more than 10 gr, also I can grind finer but the quantities in each section look the same, the only difference is the coffee in the middle (“the correct”) is each time finner. The last position I proved with the Vario is 2 - I; it looks like espresso coffee, the time of is 3:30 minutes, the temperature 96º C and is overextracted (bitter and very dry), the ratio is 10 gr - 220 ml. And the grains are all over the filter, in my opinion becuase the size is very small and the flow of water displace some of them around the filter.
If I use the recommendation for V60 of Baratza Vario is 5 - M but if I sift the result with the Kruve the correct coffee is around 6-8 gr.
Who has the reason? What is the better choice: Kreuve or Baratza?
Also, I am trying to follow the recommendations and stir the bed of coffee during the preinfusion stage, I stir the bed of coffee during the process. However, always I make it, the coffee finishes around all the filter.
Is it correct? Should I stir only the water? Some have I diagram/video of stirring for dummies?
Thanks in advance.
PD: I search before for similar topics but I didn’t find one similar. I suppose they are newbie questions.