Why Do Few People Drink Espresso in Coffee Shops? How Strong Is Espresso Concentration?

Lately, a friend of ours has been dragging himself into FrontStreet Coffee whenever drowsiness strikes and ordering an espresso. He'd down it in one gulp, his brow would knot tightly, then he'd hold a mouthful of water and quietly wait for the bitterness to fade — and moments later he'd be fully revived, exclaiming:

"Ah~ it definitely wakes you up, but this stuff is seriously bitter!"

As Italy's national drink, espresso is cherished by locals for its rich caramelized aroma — the slight bitterness included. In China, unless you're a barista tuning parameters every day or one of the few enthusiasts chasing intense flavors, the phrase "espresso" mostly summons one word: bitter. Whether that bitterness is complex and layered or simply unpleasant depends on the extraction and on the drinker's tolerance.

As we've noted when sharing Italian coffee culture, an espresso is quick to make and quick to drink — the whole ritual celebrates efficiency and pace, perfect for workers who need caffeine fast. That's the polar opposite of slow methods like pour-over. Which explains why espresso conquered Europe's cafés not for its flavor, but for its speed.

Beyond speed, espresso's defining trait is concentration. While the SCA Golden Cup standard sits at 1.15%-1.35% TDS, espresso typically runs 7%-12% — the most intense and bitter of all coffee categories. But bitter coffee is not the same as bad coffee.

As we wrote in "Light Roast for Fruit Acidity, What About Dark Roast?", compared with floral and fruity coffees, bitter coffees hold a wealth of deep aromas: caramel, dark chocolate, butter cookies, roasted nuts, toasted bread, spices. These don't just make people fall in love with coffee — they're also the yardsticks for judging a well-pulled espresso.

When we at FrontStreet Coffee pull an espresso from a classic dark-roast blend of Brazil, Mandheling, and Robusta at a 1:2 coffee-to-liquid ratio, the three essentials — fresh roasting, grinding on demand, and pressurized extraction — give the cup both abundant crema and a burst of volatile aromas. Bring a freshly made espresso to your nose and you'll catch caramel biscuit, warm spice, and dark chocolate, like stepping into a bakery.

Yes, the first sip gets jolted by the bitterness from the crema layer and the sheer intensity. But swallow, close your mouth, and breathe out through your nose: the bitterness recedes, and what returns is soft coffee aroma and a pleasant touch of sweetness.

That's why espresso lovers aren't chasing raw intensity — they're savoring the aromas hiding behind the bitterness in that small, concentrated cup, plus the viscous texture that high concentration and crema provide.

For most people, admittedly, espresso still registers first as bitterness. But as specialty coffee has grown, better and better beans are finding their way into espresso machines, expressing profiles well beyond the traditional bitterness under high temperature, high pressure, and fine grinding. The clearest example is SOE.

SOE — single-origin espresso — typically features lighter-roasted, fruit-forward beans, aiming for an espresso with lighter aromas and higher flavor recognition. To get the best results we tune parameters by experience and circumstance. Still, under espresso's conditions — heat, pressure, fine grind, speed, crema, concentration — the qualities we prize in pour-over (delicate florals, juicy mouthfeel, bright acidity, layered complexity) shift noticeably in the cup.

Brewed as pour-over, FrontStreet Coffee's Strawberry Candy shows clear notes of raisin, strawberry candy, and light florals. Pulled as espresso, it turns into rich red berry jam and orange-laced chocolate.

Similarly, the Finca La Divisa Sidra leads with passion fruit, grape juice, and almond in pour-over — but through an espresso machine that juicy freshness morphs into winey, fermented flavors, with a finish of mellow dried-apricot sweetness.

- END -

FrontStreet Coffee Recommendation

If this article has you curious about espresso's softer side, try FrontStreet Coffee's Strawberry Candy espresso blend. As pour-over it offers raisin, strawberry candy, and gentle florals; as an SOE-style shot it delivers rich red berry jam with orange-chocolate notes — proof that espresso doesn't have to mean harsh bitterness.

For fans of the classic intense cup, FrontStreet Coffee's dark-roast style blends built on Brazil and Mandheling offer thick crema and baked aromas of caramel, dark chocolate, and roasted nuts at a 1:2 ratio. And if you'd rather explore pour-over itself, FrontStreet Coffee's Yirgacheffe Guodingding brings bright citrus, berries, and florals that show what the V60 does best.