The Birthplace of Espresso: A Journey to Trieste

You’re jet-lagged, running late for an interview in Geneva, and someone hands you a tiny cup of dark liquid. You chug it like tequila—only to feel a jolt of clarity and warmth shoot through you. That was your first espresso. But what exactly is espresso, where did it come from, and why does it matter?

Espresso, meaning 'pressed out' or 'made for you' in Italian, was born in early 20th-century Italy. The very first espresso machine, the Illeta, was invented in 1935 by Francesco Illy in Trieste. It used compressed air—not steam—to extract coffee in just seconds, creating a bold, rich shot with a signature crema.

What Exactly Is Espresso?

In Italian, 'espresso' literally means 'immediately prepared for you.' This isn’t just marketing—it’s the method. Espresso is a small, concentrated coffee brewed by forcing nearly boiling water (around 90°C) through finely-ground coffee under high pressure—about 9 atmospheres. The result? A 25-second extraction that produces a 1:2 brew ratio, typically yielding a 30ml (1oz) shot topped with a 3mm layer of golden crema.

The Birth of the Modern Espresso Machine

The espresso as we know it was made possible by technology. In 1935, Francesco Illy, founder of illycaffè and based in Trieste, invented the Illeta—the first automatic espresso machine to use compressed air instead of steam. This innovation eliminated the burnt flavours caused by overheating and allowed for true high-pressure extraction. Over the last century, illy has been behind three of the eight major breakthroughs in coffee technology: the espresso machine itself, pressurised coffee preservation, and coffee pods.

Trieste, where illy was founded, remains steeped in coffee culture. Its streets are lined with historic cafés, some open since the 19th century, where locals sip espresso from morning until night. It’s the perfect place to understand why espresso is more than a drink—it’s a ritual.

Why You Can’t Make Great Espresso Just Anywhere

Making espresso is equal parts science and skill. At home, a simple moka pot can produce a strong coffee by heating water in a sealed chamber until steam pushes through the grounds. But because the water often exceeds boiling point and the pressure is inconsistent, the result can be bitter and over-extracted. True espresso demands precision: the right grind, the right pressure (9 bars), and the right temperature (90°C).

At the illy factory, the espresso-making process is obsessively controlled. Seventeen grams of coffee are ground down to around 7 grams, tamped into a portafilter, and extracted for precisely 25 seconds. The water must be 90°C, and the pressure exactly 9 atmospheres. Only then do you get the perfect shot: rich, balanced, with that iconic 3mm crema on top. The equipment matters—a lot. Poor machines can’t maintain the pressure or temperature stability needed for a clean extraction.

Frequently Asked Questions

What does 'espresso' mean in Italian?

In Italian, 'espresso' means 'immediately prepared for you' or 'pressed out.' It refers to coffee that is made on demand using high pressure, not left to drip or steep. The term reflects both the speed and the method of preparation.

Where was espresso invented?

Espresso was developed in Italy, with key innovations taking place in Trieste. The first true espresso machine, the Illeta, was invented there in 1935 by Francesco Illy, using compressed air rather than steam to extract coffee under pressure.

How is espresso different from regular coffee?

Espresso is a small, concentrated coffee brewed under high pressure (9 bars) with nearly boiling water (around 90°C). It extracts in about 25 seconds and results in a thicker drink with a rich crema on top. Regular drip or filter coffee is brewed more slowly without pressure, resulting in a lighter-bodied cup.

What is crema and why is it important?

Crema is the golden-brown foam on top of a well-made espresso, about 3mm thick. It forms when carbon dioxide and oils from the coffee beans are released under pressure. Good crema indicates proper extraction, freshness, and technique.

Can you make espresso at home without a machine?

Not really. While devices like moka pots or AeroPress can make strong coffee, they don’t achieve the 9-bar pressure needed for true espresso. Without that pressure, you won’t get the same extraction, crema, or intensity.

Why is Trieste important in coffee history?

Trieste is the birthplace of the modern espresso machine. It’s where Francesco Illy invented the Illeta in 1935 and where illycaffè was founded. The city remains a hub of coffee culture with historic cafés that have served espresso for over a century.

Recommended FrontStreet Beans for Espresso

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