Espresso is the heart of specialty coffee—a concentrated, intense 30ml beverage topped with a lush layer of golden foam called crema. Brewed by forcing hot water through finely ground, tightly packed coffee under high pressure, espresso forms the foundation for lattes, cappuccinos, and Americanos, while offering a rich experience on its own.
Here is our step-by-step guide to pulling a balanced home espresso shot.
What You’ll Need
-
Espresso Machine & Portafilter
-
Freshly Roasted Coffee Beans: 18g (Fine grind, like powdered sugar/flour feel)
-
Tamper & Scale / Timer
-
Hot Water: Water pressure at 9 bar, temp ~93°C (200°F)
Step-by-Step Instructions
1. Prep the Portafilter
Wipe the inside of your portafilter basket with a clean, dry cloth to remove moisture and lingering oils. Preheat your group head by running a short splash of hot water.
2. Dose & Distribute
Dose 18g of finely ground coffee into the portafilter. Tap the side gently or use a distribution tool to break up clumps and distribute grounds evenly across the basket.
3. Tamp Level & Firmly
Place the portafilter on a flat surface. Hold the tamper upright and press down evenly with firm, level pressure (~30 lbs) to form an airtight, uniform coffee puck. Spin the tamper lightly to polish the top.
4. Lock & Pull the Shot
Lock the portafilter into the group head and place your scale and shot glass underneath. Start the timer and extraction immediately.
5. Stop & Evaluate
Target a yield of 36g of liquid espresso (a 1:2 ratio) in 25 to 30 seconds. The stream should start dark, turn to a rich honey color, and finish with a thick, velvety crema layer.
Pro Tips for the Best Cup
-
Troubleshoot Your Flow: If your shot pulls under 20 seconds (tastes sour/watery), grind finer. If it takes longer than 35 seconds (tastes bitter/harsh), grind coarser.
-
Keep Ratios Consistent: Sticking to a strict 1:2 brew ratio (18g coffee in = 36g espresso out) is the quickest way to consistently dial in new coffee beans.