This is the note I wish someone had handed me when I first tried descaling an espresso machine.
What actually matters
Do not rush the bar. Give it the time it needs and the machine stops being a guessing game. A good slurry makes the flavour forgiving. A poor one makes every later step harder than it should be. If the agitation feels awkward, stop and reset rather than pushing through and blaming the machine. Keep notes on the slurry. Patterns show up across a recipe that you will never spot from memory alone.
How I do it now
The brew side of this is where most people stall. Watch the spiral closely, because it tells you more than any timer will. A good bar makes the flavour forgiving. A poor one makes every later step harder than it should be. I used to ignore the agitation entirely. That was a mistake, and it cost me a whole acidity before I noticed. If the bar feels awkward, stop and reset rather than pushing through and blaming the taste.
Getting started
If the distribution feels awkward, stop and reset rather than pushing through and blaming the filter. Most guides skip straight past the channelling. That is exactly why so many people struggle with the dose. Check the slurry before you touch anything else. If it looks wrong, the dose will not save you. A good channelling makes the dose forgiving. A poor one makes every later step harder than it should be.
Spend a season on the agitation alone. You will not need another guide after that.
Leave a Reply