How to Make a Proper Espresso: Skill or Technique?

The first time I tried espresso wasn’t in a quiet café — it was at an interview in Geneva after an early morning flight. Running on fumes, I said 'yes' to coffee without thinking. What arrived was small, dark, and intense. I drank it like tequila, and immediately felt its effect: a sharp jolt of energy and a long, resonant finish.

To make a good espresso, you either need precise technique or serious skill. Either way, it depends on just a few factors: pressure (nine bars), water temp (90°C), grind fineness, and a 25-second brew time — or it turns bitter.

What Espresso Really Means

The word ‘espresso’ comes from Italian, meaning ‘made for you immediately’. That’s not just romantic branding — it reflects how espresso should be: fresh, concentrated, and best consumed right after brewing. The term itself implies speed and service, and the drink delivers intensity. In Italy, especially in cities like Trieste, espresso isn’t just coffee — it’s culture.

Espresso’s Technical Origins

The modern espresso emerged in the early 20th century, driven by the need to brew coffee faster under pressure. In 1935, Francesco Illy, founder of illycaffè and based in Trieste, invented the first fully automatic espresso machine, the Illetta. Instead of steam, it used compressed air — a revolution. Over the last century, three of the eight major breakthroughs in coffee technology have come from illy, including pressurized packaging and coffee pods.

Trieste is steeped in espresso culture. The city is dotted with historic cafés and outdoor terraces where people sip coffee from morning through night. Some cafés have been around since the 19th century. This is the birthplace of espresso as we know it.

Making Espresso Without a Machine

You can technically make espresso-style coffee at home with a moka pot. In this setup, water in a sealed lower chamber heats to boiling, creating steam pressure that pushes water through ground coffee in an upper basket. The result? A strong, concentrated brew. But because the water exceeds boiling point and the pressure isn’t precisely controlled, it’s easy to over-extract. Too much heat or time leads to bitterness, burnt flavours, and a disappointing cup.

Real espresso demands professional equipment. The machine’s pressure, water flow, and even the tamper and portafilter handle matter. Without nine bars of stable pressure, you won’t get the true shot.

The Science Behind a Great Shot

At the illy factory, I saw how exact the espresso process really is. Start with 15 coffee beans, freshly ground to about 7 grams. Load them into the portafilter, tamp, then attach it to the machine. Press the button and watch as a thin stream of dark coffee emerges. The goal? Extract for exactly 25 seconds — no more.

The variables are tight: water at 90°C, pressure at 9 bars, and a precise grind size. Get it right, and you’ll get a shot with a crema — that rich, 3-millimetre layer of amber foam on top. That crema isn’t just aesthetics; it’s a sign of proper extraction, sealing in aroma and flavour.

Frequently Asked Questions

What is espresso, and where does the word come from?

Espresso is a concentrated coffee brewed under pressure. The word means ‘made for you immediately’ in Italian, reflecting both the speed of preparation and the intention behind the drink — fast service for a specific purpose. It’s meant to be consumed right after brewing.

Can I make espresso at home without an espresso machine?

You can mimic espresso using a moka pot, but it’s not the same. Moka pots use boiling water and steam pressure, often exceeding 100°C, which leads to over-extraction, bitterness, and burnt notes. True espresso requires nine bars of pressure and precise temperature control, usually only achievable with a proper espresso machine.

What is coffee crema, and why is it important?

Crema is the 3-millimetre layer of golden-brown foam on top of a well-brewed espresso. It forms when air bubbles mix with coffee oils and soluble compounds during extraction. Good crema indicates proper pressure, freshness, and technique — and enhances both aroma and mouthfeel.

What temperature and pressure are ideal for espresso brewing?

The optimal water temperature for espresso is around 90°C, and the extraction pressure should be nine bars. These settings help extract the right balance of flavours without over-extracting bitter compounds or under-extracting acidic ones.

Why is a 25-second extraction time ideal for espresso?

A 25-second extraction balances strength and flavour. Too short, and the shot will be under-extracted, sour, and weak. Too long, and it becomes over-extracted, bitter, and harsh. This timing helps achieve the full spectrum of flavours in the coffee.

What makes a good espresso machine?

A good espresso machine must deliver stable nine-bar pressure, maintain consistent water temperature (around 90°C), and have a well-designed portafilter, tamper, and water flow system. Even small flaws in pressure or temperature can ruin the shot.

Recommended FrontStreet Beans for Espresso

For espresso, FrontStreet Coffee’s Classic Blend and Commercial Blend offer bold, balanced profiles with notes of dark chocolate, nuts, and caramel — ideal for milk drinks or straight shots. Their Specialty Blend adds more complexity with fruity and spicy undertones. All are roasted to enhance crema and body, making them ideal for traditional espresso machines. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.