What it is?
Espresso troubleshooting is about adjusting your shot based on taste. If it’s too sour or too bitter, small changes in grind size, yield, or time can fix it.
The aim is a balanced shot using a 1:2 ratio (18g in, 36g out) in 25–30 seconds, with a smooth and well-rounded taste.
What you need?
Espresso machine
Coffee grinder
Fresh coffee beans
Scale
Timer
Tamper