Don't quite understand your problem. What do you mean extract out between 8-12 seconds, or from 6 seconds? Are you counting your total shot time from the 1st drip in the cup?hi guys i now got a little problem.. i keep don get the so called correct extraction.
if i can extract out between 8-12sec then end at 30sec i only can extract 27gram of water
once i try extract from 6sec i can get 36gram at 26sec..
i cant extract 36gram within 8-12sec end at 24-30 sec
always either side run off hahahahaha
For me to be consistent regardless of grind size I count total extraction time from when the pump is turned on so that includes any pre-infusion times.
If you are keeping all else constant:
- Amount of coffee in the portafilter, determined by weighing it on a kitchen scale, preferably to 0.1g accuracy
- Same grind size
- Same coffee beans
Then the variance in shot times could be due to how you prepare your puck such as how you tamp or break up clumps. Look up WDT (Weiss Distribution Technique, can use a paperclip). Otherwise there are 1892798 other reasons to explain the difference in shot times. It's not called a black hole for nothing
