(For those who saw my previous post, I misjudged sour as bitter)

I’m still dialing in the coffee beans I have and the shots are sour and watery and I’ve noticed that there is channeling

I’ve already tried grinding finer but that just slows down the shot, makes it even more sour and eventually nearly choking the shot

My puck prep is

  1. Weigh 18g
  2. RDT (which I sometimes exclude)
  3. Grind
  4. Add more ground beans or remove sons ground coffee to make sure I have 18g out of the grinder
  5. WDT Using the technique from Lance Hedrick’s video
  6. Tamp (the same way James Hoffman does in his espresso puck prep video
  7. Manually pulling 1:2.5 shot out of Breville Barista Express via program mode with the use of a scale to weigh the shot

Edit:

I increased the temperature to 95°C from the defualt 93°C and also learned that program mode is different from manual mode on a Breville Barista Express (its on pg 14 in the manual)

And the espresso shot is better now but there’s still sone slight channeling that I need to work on

    • beeb@lemm.ee
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      12 days ago

      Maybe you’re using light roasted coffee, which usually requires a higher quality grinder to extract properly. You could switch to something darker which for sure will reduce the acidity levels, or get a cheap quality hand grinder. I’ve had a 1zpresso for a while which does the job, but I finally got a good electric one too because it’s only fun for a few weeks to grind by hand for espresso (it takes like 45 seconds)