The foundation of almost every coffee drink. Getting espresso right requires precision — but once you understand the variables, it becomes intuitive.
A machine capable of generating 9 bar of pressure. Entry-level semi-automatics work well. Pump-driven machines are far more consistent than steam-driven ones.
A quality burr grinder is non-negotiable. Blade grinders produce inconsistent particle sizes which destroy extraction. A consistent, fine grind is essential for espresso.
Use beans roasted within the last 6 weeks. Espresso benefits from beans rested 7-21 days post-roast. Very fresh beans contain excess CO2 that disrupts extraction.
Weigh your dose in and your yield out. A scale accurate to 0.1g eliminates guesswork. A timer ensures consistent extraction — both are cheap and transform your results.
Weigh out 18 grams of whole beans and grind them. Adjust dose between 17-20g depending on your basket size. Consistency here is everything — vary by no more than 0.2g.
Use a distribution tool or your finger to level the grounds in the basket. Uneven distribution causes channelling — water finds the path of least resistance and under-extracts unevenly.
Press the tamper straight down with approximately 30 pounds of pressure. Twist slightly to polish. The goal is a level, compact puck — not maximum force. Polish and levelness matter more than pressure.
Insert the portafilter into the group head and lock firmly. Do not leave it locked in while the machine heats — this scorches the puck. Lock in just before pulling the shot.
Start your shot and your timer simultaneously. Place a pre-warmed cup under the spouts. Modern espresso machines build to 9 bar — the standard for espresso extraction.
The extraction should run for 25-30 seconds. Watch the flow — it should emerge slowly like warm honey, not drip, not gush. Adjust your grind if the time is off target.
Stop extraction when the cup contains 36 grams of liquid espresso (a 1:2 ratio from 18g dose). This is the standard double espresso. Taste and adjust dose, grind, or yield accordingly.
Shot runs too fast. Coffee tastes sharp, thin, and sour. Lacks sweetness and body.
Shot runs too slow or goes too long. Coffee is harsh, dry, and overwhelmingly bitter.
Shot spurts or runs unevenly. Extraction is inconsistent — a mix of under and over-extracted simultaneously.
