Coffee Drink
Espresso Tonic: Recipe, Ratios and a Better Pour
Espresso tonic is espresso, tonic water and ice: a sparkling, bittersweet coffee drink with no alcohol in the basic recipe. Start with cold tonic and ice, then add the espresso slowly. Tonic supplies sweetness and quinine bitterness; plain sparkling water makes a different drink.
Drink Snapshot
- Caffeine
- About 75 mgGeneric composition reference for 36 g espressoNot calculated from the dry coffee dose; actual extraction varies.
- Calories
- About 30 kcalNamed Q Tonic Water + espresso; no syrupIngredient estimate using the US 7.5 fl oz can label.
Serving, sugar and sources
- Serving
- 1 home drink; 36 g prepared espresso + 120 ml (½ US cup) tonic + 100 g (3.5 oz) ice
- Made with
- Espresso + tonic water + ice
- Sugar
- About 6 g total. From the named tonic; a light or differently sweetened tonic changes this.
- Preparation
- About 3 minutes
Q Mixers US labels reviewed 24 September 2026 and USDA espresso record 171891. Ingredient calculations; use your tonic’s current label. See the full calculation or label comparison.
Key Takeaways
- 1Use 36 g prepared espresso, 120 ml (½ US cup) chilled tonic and 100 g (3.5 oz) ice as a measured home starting point.
- 2Pour espresso last and slowly. Leave space for foam, then stir gently for a more even first sip.
- 3This serving is about 30 kcal and 6 g sugar with the named Q tonic. Caffeine is a separate, approximate 75 mg espresso reference.
On This Page12 Sections
What Does Espresso Tonic Taste Like?
Expect cold bubbles, coffee aroma and a bittersweet finish. The espresso can bring fruit, chocolate or roast notes; the tonic adds its own citrus or botanical character. It should still taste like coffee, but without the milkiness of an iced latte.
The tonic matters as much as the coffee. Taste each ingredient separately if the combination seems harsh. A strongly bitter tonic and a heavily roasted espresso can reinforce each other. Extra lemon juice can also make an already tart drink sharper; start with aromatic peel instead.
One gentle stir gives a more consistent first sip.
How to Make Espresso Tonic
Recipe
Espresso Tonic
- Makes:
- 1 drink
- Time:
- About 3 minutes with the espresso machine ready
Ingredients
- 18 g finely ground coffee, brewed to 36 g prepared espresso
- 120 ml (½ US cup) chilled tonic water; nutrition example uses Q Tonic Water
- 100 g (3.5 oz) ice cubes
- 1 strip lemon or orange peel, optional
Equipment
- Espresso maker, scale, measuring jug, spoon, 350 ml (11.8 US fl oz) glass
Method
- Build the cold base. Add 100 g (3.5 oz) ice to a 350 ml (11.8 US fl oz) glass, then slowly pour in 120 ml (½ US cup) refrigerator-cold tonic. Leave headroom.
- Brew and pour. Prepare 36 g espresso from the 18 g dose. Pour slowly over a large ice cube or spoon; pause if foam rises.
- Finish. Add the optional citrus peel. Stir once gently for an even flavor and serve immediately.
Estimated nutrition per serving: 30 calories; total sugar 6 g. Serving: 1 drink, no syrup or garnish.
Recipe notes
About 30 kcal and 6 g total sugar with Q Tonic Water; optional citrus and syrup excluded.
One drink · about 3 minutes · espresso machine ready. Use a 350 ml (11.8 US fl oz) glass for space around the ice and foam.
Prevent overflow: start with chilled tonic and leave headroom. Pour the espresso slowly over ice or a spoon, pausing if the foam rises.
The 18 g dose and 36 g yield are a home espresso starting point. Follow your basket or capsule maker’s guidance when your equipment differs. The espresso brewing guide helps with grind and extraction.
What Is the Best Espresso-to-Tonic Ratio?
Start with 36 g espresso and 120 ml (½ US cup) tonic, then adjust the tonic to taste. For a ratio expressed by volume, 40 ml (1.4 US fl oz) espresso and 120 ml (½ US cup) tonic is 1:3. Our recipe weighs espresso instead, so 36 g coffee liquid plus 120 ml (½ US cup) tonic is not an exact 1:3 volume ratio. Crema also makes espresso volume less repeatable than mass.
Keep the espresso fixed while you adjust the tonic:
| With the same 36 g espresso | What changes |
|---|---|
| 90 ml (3 US fl oz) tonic | Smaller, more coffee-concentrated drink |
| 120 ml (½ US cup) tonic | This page’s starting point |
| 150 ml (5.1 US fl oz) tonic | More tonic flavor and dilution; more sugar if sweetened |
Koppi’s published version uses about 40 ml (1.4 US fl oz) coffee with 150–200 ml (5.1–6.8 US fl oz) tonic, while Q Mixers’ recipe uses 60 ml (2 US fl oz) espresso with 120 ml (4 US fl oz) tonic. Their different proportions explain why the same order can taste different across cafés.
Best Coffee and Tonic for Espresso Tonic
Start with an espresso you enjoy without the mixer. Koppi favors light, fruity coffee for its version; a balanced medium roast can be another starting point if you prefer chocolate or nut notes. Fix a sour or burnt-tasting shot before trying to hide it with syrup.
Choose tonic by its taste and label, rather than a “premium” claim alone:
| Tonic choice | What to check |
|---|---|
| Regular tonic | Sweetness and quinine bitterness; sugar varies by product |
| Light tonic | Whether it uses sugar, another sweetener or both |
| Zero-sugar tonic | Sweetener taste; “zero sugar” does not mean neutral flavor |
| Flavored tonic | Whether added citrus, herbs or floral flavor overwhelms the coffee |
Use a freshly opened small bottle or can when possible. Plain soda water is not tonic: it lacks tonic’s quinine and usual sweetness. Try coffee soda if you want a different sparkling-coffee style.
How to Keep It Fizzy Without Overflow
I leave generous headroom and pour the espresso slowly onto chilled tonic and ice. It gives me time to watch the foam rise. I want the drink in the glass, without losing part of it over the rim.
Avoid shaking or repeated stirring.
| Problem | Try this |
|---|---|
| Foam climbs out of the glass | Pause the pour; use a larger glass and leave more headroom |
| Drink quickly tastes flat | Use freshly opened cold tonic and stir only gently |
| Too bitter | Taste the shot and tonic separately; try a less bitter pairing |
| Too sweet | Change tonic or reduce its portion before adding more ingredients |
| Too sharp | Skip squeezed citrus and check the espresso extraction |
| Weak after a few minutes | Serve promptly; melting ice keeps diluting the drink |
Espresso Tonic Calories and Sugar
This recipe is about 30 kcal with Q Tonic Water, or 15 kcal with Q Light Tonic Water. The comparison uses the same 120 ml (½ US cup) tonic portion and 36 g espresso, based on US 7.5 fl oz can labels reviewed on 24 September 2026:
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| Tonic used | Label per 7.5 US fl oz can | Estimated whole drink |
|---|---|---|
| Q Tonic Water | 45 kcal; 11 g total sugar | 30 kcal; 6 g sugar |
| Q Light Tonic Water | 20 kcal; 4 g total sugar | 15 kcal; 2 g sugar |
Tonic and espresso calculation
How the math works: 7.5 US fl oz is 222 ml. Multiply the tonic’s label values by 120 ÷ 222, then add about 3 kcal for the espresso. The calculated energy totals are 27.6 and 14.1 kcal; the table rounds to convenient estimates. USDA prepared espresso record 171891 gives 212 mg caffeine per 100 g; 36 × 212 ÷ 100 = 76.3 mg, rounded to 75 mg. Both named labels list their sugar as added sugar. The light product also contains erythritol, so its total carbohydrate is not the same as its sugar figure.
Ice adds no calories; syrup, juice and other garnishes change the total. Use the label on your bottle, especially when the country or pack size differs. Regular Q label · Light Q label.
How Much Caffeine Is in an Espresso Tonic?
The 36 g espresso portion has a generic caffeine reference of about 75 mg. It is not a measurement of the home shot. More tonic or ice dilutes the coffee but does not remove its caffeine. Decaf reduces caffeine without guaranteeing zero.
Espresso Tonic vs. Similar Cold Coffee Drinks
Swipe to see all columnsScroll to see all columns
| Drink | Coffee and mixer | Main distinction |
|---|---|---|
| Espresso tonic | Espresso + tonic | Sparkling, usually sweetened and quinine-bitter |
| Iced Americano | Espresso + water + ice | No tonic sweetness or quinine |
| Cold-brew tonic | Cold brew + tonic | Coffee base and caffeine depend on the brew’s concentration |
| Orange espresso | Espresso + orange juice + ice | Still citrus juice instead of carbonated tonic; no quinine |
| Coffee soda | Coffee + soda water, sometimes syrup | A broader category; check the actual ingredients |
Can You Make It Without an Espresso Machine?
Yes: a capsule espresso, concentrated AeroPress brew or moka-pot coffee can make a coffee-tonic variation. Follow your brewer’s instructions, start with a small measured portion, and adjust to taste. These substitutes differ in concentration and do not inherit the espresso caffeine estimate. Follow the dedicated guide if using cold brew.
Where Did Espresso Tonic Come From?
Koppi’s account traces its inspiration to a colleague’s coffee-and-tonic drink in Oslo, before Anne Lunell and Charles Nystrand opened Koppi in Helsingborg, Sweden, in 2007. They developed Kaffe&Tonic for the café menu. Lunell also described that history in a 2018 European Coffee Trip interview.
Common Questions
Is espresso tonic alcoholic?
Should I stir espresso tonic?
Can I make it ahead?
Can I add orange juice or syrup?
Is espresso tonic vegan?
Sources and Further Reading
6 references
External links open in a new tab
Recipe and origin
- Koppi RoastersCoffee & Tonic method and historyFirst-party account and the café’s published recipe.(opens in a new tab)
- European Coffee TripInterview with Anne Lunell2018 first-person account of the Oslo inspiration and Koppi café drink.(opens in a new tab)
- Q MixersEspresso Tonic recipeA manufacturer’s different measured recipe, supporting the comparison of proportions.(opens in a new tab)
Serving estimates
- Q MixersTonic Water US label45 kcal and 11 g sugar per 7.5 fl oz can; scaled to our 120 ml portion.(opens in a new tab)
- Q MixersLight Tonic Water US label20 kcal and 4 g sugar per 7.5 fl oz can; a separate light-product calculation.(opens in a new tab)
- USDA SR28Prepared espresso, record 171891Generic energy and caffeine composition scaled to the 36 g prepared coffee portion.(opens in a new tab)