Just when I thought it was fixed…
Tried a new coffee today. Guatemalan from Rave.
Got it dialled in, or so I thought. 28 seconds for a 1:2 yield, tasted good. Next shot, 24 seconds for the same dose and yield, thin and underextracted.
Rather than faff around with the grind setting and lose purge waste I just upped the dose by 0.5g as I only have a small bag and it’s no longer available to buy.
22 seconds…
Prep is identical to what I was doing before, using a measured tamp.
I checked the flow rate on the Bianca, I got a constant 100ml in 16 seconds five times in a row with the paddle fully open with no PF fitted. Is that about right?
I spoke to the retailer of the x54 yesterday and the way I had to explain things made me think sadly they’re not actually clued up on the ins-outs of coffee prep. They just referred me to an email from MK that said ‘this can happen when switching grind settings’… despite explaining that I hadn’t even touched the grind setting between shots.