I have been working to dial in my go to coffee blend (Goldstar - 50% Hawaiian Kona decaf and 50% espresso decaf) with my new Lelit Elizabeth. After much struggling, a fair bit of reading, and a couple of pounds of coffee, I finally figured it out and dialed it in. I now much better understand the combined impacts of grind fineness, brew ratio (output/dose), water temperature and pre-infusion type and time on extraction, strength and bitterness vs sourness. My shots and cappuccinos are finally tasting decent.
Part way through, when all was sour, and not knowing what else to do, I swapped out my IMS screen, and te-installed the Lelit screen.The flow slowed, extraction increased and I was on my way towards dialing things in.
I am now debating whether to re-install the IMS screen. Flow would increase, which I would offset by making my grind finer.
Except that I will have to work through dialing things in again.
Any thoughts on the IMS screen. Should I swap it back in or not? Will it help or not? Still looking for that elusive God Shot!
Are you using the Lelit screen or IMS or VST? Why or why not?
Btw, I am now using 0.35 mm needles for my WDT and freezing my coffee in 17g doses, which I grind frozen. Both these workflow items seem to help taste and consistentcy. I also found bloom pre-infusion (11 seconds, including the 6 second initial headspace fill) to be helpful .
Anyway, thoughts, comments, ideas?