A good espresso is not luck. Our baristas pull thousands of shots a week, and the same handful of decisions get them there every time. You can copy the method at home. You need a set of scales, a timer, and a little patience for the first few cups.
The word for this is dialling in: adjusting your machine until the coffee in the cup tastes the way you want. Here is how to do it without guessing.
The three things you can change
Most people twist one dial and hope. In truth there are only three levers that matter, and they work together:
- Grind size. How fine or coarse the coffee is ground. This is the big one.
- Dose. How much dry coffee goes in the basket, in grams.
- Yield and time. How much liquid espresso comes out, and how long it takes.
Lock two of them and move the third. Change everything at once and you will never know what fixed the cup.
Start with a recipe, not a feeling
Baristas work to a ratio, not a vibe. A reliable place to begin is a 1 to 2 ratio: 18 grams of coffee in, about 36 grams of espresso out, in 25 to 30 seconds. Weigh the shot in the cup, do not eyeball it.
Your beans might want a slightly different ratio, and that is fine. The point of the recipe is that it gives you a fixed spot to push against.
Let taste tell you which way to move
Once you have pulled a shot to the recipe, taste it. The flavour points you to the fix:
- Sour or thin? The shot ran too fast and under-extracted. Grind finer.
- Bitter or harsh? The shot ran too slow and over-extracted. Grind coarser.
- Somewhere sweet and balanced? You are dialled in. Note the settings.
Grind is the first thing to move because it changes how fast water flows through the coffee. Finer slows the flow and pulls out more. Coarser speeds it up and pulls out less.
Change one thing, then wait
The mistake we see most often is impatience. Someone grinds finer, then finer again, then changes the dose too, and now three things moved and the next shot is worse. Make one adjustment, pull one shot, taste it. Then decide.
Fresh beans matter here as well. Coffee keeps changing for a couple of weeks after it is ground fresh, so a recipe that was perfect on Monday may need a small nudge by Friday. That is normal. A tiny grind adjustment brings it back.
The best home baristas are not the ones with the most expensive machine. They are the ones who taste, adjust, and keep notes.
Keep a simple log
Write down what worked: the beans, the grind number, the dose, the yield, the time. When you open a new bag you will have a starting point instead of a blank page. Over a few weeks the adjustments become second nature and the guessing disappears.
That is the whole craft. Three levers, one change at a time, and your own taste as the judge. It is the same discipline our baristas bring to the bar every day, and it works just as well on the bench in your kitchen.
Start with a fixed recipe
Weigh 18 grams of dry coffee into the basket, aim for 36 grams of espresso out, and time the shot for 25 to 30 seconds. Note the numbers before you start.
Taste and diagnose
Pull the shot to the recipe, then taste it. A sour or thin cup means the shot ran too fast. A bitter or harsh cup means it ran too slow.
Adjust the grind
Grind finer if the shot tasted sour, or coarser if it tasted bitter. Change only the grind on this pass.
Pull one shot and repeat
Pull a single shot after each change and taste again before adjusting further. Stop once the cup tastes sweet and balanced, then write down the settings.
