How to dial in espresso.
Dialing in means adjusting your grind until the shot tastes right and hits the target ratio. It is a feedback loop. You pull, taste, adjust, and repeat until the shot is good.
What dialing in actually means.
When you dial in espresso, you are finding the right grind setting for a specific bag of beans on a specific machine. The goal is a repeatable recipe: 18g in, 36g out, 25-30 seconds, tastes balanced.
The grind is your main control. Finer slows the shot and increases extraction. Coarser speeds it up and decreases extraction. Everything else (dose, water temp, pressure) stays fixed while you adjust grind.
Once you find the right grind for a bag, write it down. That is your recipe. You do not need to re-dial every morning. You dial in once per bag and then just pull shots.
Six steps to a dialed-in shot.
Follow these in order. Do not skip the tasting step.
Pick your target
18g in, 36g out, 25-30 seconds. That is a 1:2 ratio. Write it down before you start. It gives you three numbers to compare against after every shot.
Pull a shot
Weigh the dose on a scale before it goes in the portafilter. Start the timer when you start the pump. Stop and weigh the yield when you hit 36g or when the shot looks done. Write all three numbers down.
Compare the numbers
Check yield first. If you hit 36g in 25-30 seconds, the ratio and time are both good. If the shot ran in 18 seconds, your grind is too coarse. If it took 45 seconds, your grind is too fine.
Taste it
Taste the shot before you decide what to change. Sour means under-extracted. Bitter means over-extracted. Balanced sweetness with some brightness is the target. The taste matters more than the time.
Adjust one thing
Under-extracted: grind finer by one click. Over-extracted: grind coarser by one click. One click. One change. Pull again. This is the whole process.
Repeat until it tastes right
Most beans dial in within 3-6 shots from a reasonable starting grind. Once it tastes good and hits the ratio, your grind setting is your recipe.
Taste-to-adjustment.
Five mistakes that waste shots.
Changing dose and grind at the same time
Change one variable per shot. If you adjust both, you will not know which one fixed the problem.
Not weighing the dose
Even a 1g variation in dose changes the extraction significantly. Weigh every time.
Comparing shots from different beans
Every bag dials in differently. Start fresh when you open a new bag. Your old grind setting is just a starting point.
Pulling shots from a brand-new bag
Beans off-roast (under 5-7 days) are gassy. Shots channel and yield varies. Wait until day 7-10 post-roast for a stable dial-in.
Dialing in from memory
You will not remember dose, yield, and time from three shots ago without writing them down. Log every pull.
When to re-dial.
Once you find your grind setting, it holds for most of the bag. These four situations mean it is time to adjust again.
New bag of beans
Every bag is different. Same roaster, different lot, different roast date. Start at your last grind setting but expect 2-4 adjustment shots.
Temperature changed significantly
Grinders expand in heat and contract in cold. If your kitchen temperature shifted 10+ degrees, your grind setting shifted too.
Beans are more than 4 weeks past roast
Older beans lose CO2 and compress differently. Shots often run faster. Go slightly finer when your bag has been open for a month.
You cleaned or disassembled the grinder
Reassembling a grinder can shift the burr alignment slightly. Pull two test shots and check the time before trusting the old setting.
Why you need a shot log.
You cannot dial in from memory. After three shots, you will not remember whether shot two tasted sour or shot three ran at 22 seconds. The numbers blur together.
Writing dose, yield, time, and a tasting note for each shot gives you a record you can actually use. You see the pattern. You find the grind setting that works. And when you open a new bag, you have a reference point to start from.
That is what DialInLog is for. Log every shot during dial-in. Save the recipe that works. Come back to it every morning without pulling calibration shots.
Start logging. Stop guessing.
The free DialInLog download includes a shot log template you can use today, before you touch the app.
Download the Free Shot LogFree PDF. No email required.