The most surprising drink of the moment. Hot espresso over cold tonic water: a combination that shouldn't work, yet captivates from the first sip.

THE SCANDINAVIAN ORIGINS OF A GLOBAL DRINK

The espresso tonic is one of those drinks that initially divides opinion but wins you over from the first sip. The idea seems counter-intuitive: pouring a hot espresso shot over cold, sparkling tonic water. It should be a disaster. But it's not.

Born in Scandinavian coffee shops about twenty years ago, the espresso tonic has spread worldwide as specialty coffee culture developed. Today, it can be found in the best coffee shops in Tokyo, London, Melbourne, and of course, Quebec City.

THE CHEMISTRY OF FLAVORS: WHY IT WORKS

The key lies in the chemistry of flavors. The bitterness of quinine in tonic water resonates with the natural bitterness of espresso: instead of adding to them, it balances them. The carbonation creates a light and lively texture that contrasts with the density of the coffee. The result: refreshing, complex, surprising.

The choice of espresso is crucial. A bean with fruity or floral notes—typical of Ethiopian or Kenyan coffees—pairs perfectly with tonic water. An overly roasted or woody espresso can overpower the mixture. This is where specialty coffee makes all the difference.

HOW TO PREPARE IT PERFECTLY

Technique matters as much as ingredients. First, fill the glass to the brim with ice. Pour cold tonic water—good quality, with firm bubbles. Then, extract the espresso directly onto the mixture, in a slow stream, to create that striking visual effect where the coffee descends through the sparkling liquid. Serve immediately.

Recommended ratio: a double espresso (40 ml) to 120 ml of tonic water. No sugar. No syrup. Simplicity is what makes this drink great.

THE ESPRESSO TONIC AT CARRERA CAFÉ

At Carrera Café, we offer our espresso tonic with our current single-origin coffee—selected specifically for its notes that harmonize with tonic water. A seasonal drink, perfect for the mild days of Petit-Champlain. The same rigor as for everything we prepare: no compromises.