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Every Session

Espresso Dialing-In SOP

Do this every time you pull shots. Takes ~15 minutes.

Jump to Step 1
~15 min first time
Every session
Beginner friendly
Updated Jan 2026

Equipment Needed

Budget Espresso MachineBreville Bambino, Gaggia Classic, De'Longhi — under $500 works
Burr GrinderHand (1Zpresso JX-Pro) or electric (Baratza Sette). Non-negotiable.
Fresh BeansRoasted within 7–21 days. Medium roast is most forgiving.
0.1g ScaleTimemore Black Mirror, AWS, or any pocket scale with 0.1g precision
TimerPhone timer works. You need to hit 25–30 seconds consistently.
58mm TamperMatch to your portafilter basket size. Flat base, comfortable grip.
Espresso Cups2–3 oz demitasse cups. Ceramic retains heat better than glass.
Filtered WaterBrita pitcher is fine. Avoid distilled — you need some mineral content.

Procedure Steps

1

Warm Up the Machine

Turn on your machine and let it heat for at least 10–15 minutes. Run a blank shot (no portafilter) through the group head to heat the internal components and flush stale water. Place your portafilter and cup on the warming tray if your machine has one.

Tip: A cold machine pulls sour, under-extracted shots. Patience here is the cheapest upgrade you'll ever make.
2

Set Your Starting Dose

Weigh out 18 grams of whole beans into your grinder. Single-wall baskets typically use 16–18g; double-wall pressurized baskets use 14–16g. Check your basket's rated capacity — overfilling causes channeling. Grind all 18g into your portafilter.

IF using a pressurized (dual-wall) basket: Use 14–16g dose. Grind slightly coarser. Your machine creates pressure artificially — you have more margin for error. IF using a non-pressurized (single-wall) basket: Use 17–18g dose. Grind finer. This is where dialing-in matters most — every variable is on you.
3

Distribute and Tamp

Tap the portafilter gently on the counter to settle grounds. Use a WDT tool (a $3 paperclip cluster works) to stir and break up clumps. Level the bed with a finger or distribution tool. Tamp straight down with firm, even pressure — about 15–20 lbs. The puck surface should be flat and shiny.

Warning: Uneven tamping is the #1 cause of channeling. If your tamp is tilted, water finds the path of least resistance and over-extracts one side while under-extracting the other.
4

Lock In and Start the Shot

Insert the portafilter firmly into the group head. Place your cup on the scale underneath, tare (zero) the scale, and start your timer the moment you press the brew button. Watch the bottom of the portafilter — espresso should begin dripping within 4–8 seconds. If nothing appears by 10 seconds, your grind is too fine.

5

Watch the Extraction

The shot should flow like warm honey — thin, steady streams, not a gush and not individual drips. Early in the shot, you'll see dark, syrupy espresso. Around the 20-second mark, it should lighten to a golden-brown "tiger stripe" pattern. Stop the shot when your scale reads 36 grams (double your 18g dose).

Target: 18g in → 36g out → 25–30 seconds. This 1:2 ratio in 25–30s is your baseline. Adjust from here.
6

Analyze the Shot

Taste the espresso. Don't add anything yet. Pay attention to the first impression, the body, and the finish. Is it balanced? Sweet with a pleasant acidity? Or does something feel off?

IF the shot ran too fast (under 20 seconds, watery, sour): Grind finer — one click on your grinder. This slows water flow and increases extraction. Repeat Steps 2–5. IF the shot ran too slow (over 35 seconds, bitter, harsh): Grind coarser — one click. This speeds flow and reduces extraction. Repeat Steps 2–5. IF the shot hit 25–30 seconds but tastes sour: Increase yield — pull to 38–40g instead of 36g. More water = more extraction. Or increase water temperature if your machine allows it. IF the shot hit 25–30 seconds but tastes bitter: Decrease yield — stop at 32–34g. Less water = less extraction. Or lower water temperature.
7

Adjust One Variable at a Time

Change only grind size between attempts. Keep dose (18g), yield (36g), and tamp pressure constant. Each grinder click should move your shot time by 2–4 seconds. Move one click, pull another shot, taste again. Most beans find their sweet spot within 3–5 adjustments.

IF you've adjusted 5+ times and it's still off: Check your beans — are they too fresh (under 5 days post-roast) or too old (over 30 days)? Old beans won't produce crema no matter how well you dial in. IF channeling (spraying, uneven flow, blonding early): Revisit Step 3 — improve your WDT distribution and tamp. Channeling is almost never a grind issue. It's a puck prep issue.
Warning: Never change dose AND grind at the same time. You'll never know which variable fixed (or broke) the shot. One change. One shot. Repeat.
8

Log and Repeat

Once dialed in, write down: bean name, dose (18g), grind setting (click number), yield (36g), and shot time (27s). Next time you use these beans, start at these settings — you'll be 90% dialed in from the first shot. New beans? Start over at Step 2.

Note: Humidity and bean age shift your grind over time. Expect to adjust 1 click every 3–5 days as beans age. This is normal.

Common Mistakes

  • Skipping the warm-up. Pulling shots on a cold machine guarantees sour, thin espresso. The boiler and group head need 10+ minutes to reach stable temperature. No shortcut here.
  • Not weighing your dose. Volume scoops are wildly inconsistent — a "tablespoon" of finely ground coffee can vary by 3–4 grams. That's enough to throw off your entire ratio.
  • Changing two variables at once. Adjusting grind AND dose simultaneously means you can't isolate what worked. One variable. One change. Pull. Taste. Repeat.
  • Ignoring puck prep. The best grinder in the world can't save a clumpy, unevenly distributed puck. Channeling destroys extraction uniformity. Spend 30 seconds on WDT and distribution — it's free.
  • Using stale beans. Pre-ground grocery store coffee and beans roasted 2+ months ago will never pull a balanced shot. Freshness isn't snobbery — it's chemistry. Buy from a local roaster or a subscription with roast dates printed on the bag.

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