How to Make a Cappuccino: Recipe and Ratio
A cappuccino is an Italian coffee drink made of a single or double espresso (about 25 to 60 ml), steamed milk and a thick, airy layer of milk foam about 1 to 2 cm deep, served in a 5 to 6 oz cup for a volume of 150 to 180 ml. The Italian tradition describes a balance of three equal parts: one third espresso, one third steamed milk, one third foam. That thick foam is its signature and what sets it apart from the thinner flat white and latte.
- Coffee base: single or double espresso, about 25 to 60 ml
- Milk: 100 to 120 ml of whole milk, split between steamed milk and foam
- Foam: thick and airy, about 1 to 2 cm, its true signature
- Serving volume: 150 to 180 ml in a 5 to 6 oz cup
- Italian ratio: one third espresso, one third steamed milk, one third foam
- Milk temperature: 60 to 65 degrees Celsius, never boiled
- Total time: about 5 minutes
What a cappuccino is
The cappuccino was born in Italy, where it remains above all a morning drink. Its name nods to the brown hooded robe of Capuchin friars, and it is indeed the look of the drink, dark coffee under a pale cap of foam, that makes it the most recognisable milk coffee in the world. Unlike a plain coffee with milk poured in, the cappuccino follows a precise rule of proportion that shapes both its taste and its texture.
If there is one thing to get right, it is the foam. The defining feature of a cappuccino is not the coffee or the milk on their own, but the way the milk is aerated into a thick, stable cap. Where a flat white asks for the thinnest skin of microfoam and a latte for something in between, the cappuccino wants volume on top: a generous, cloud-like layer of about 1 to 2 cm. According to the Specialty Coffee Association, a cappuccino carries at least twice as much foam as a latte or flat white, which is why getting the milk texture right matters more here than in any other milk drink.
The Italian tradition frames the cappuccino in three equal thirds: one third espresso, one third steamed milk and one third foam. That ratio explains why a good cappuccino still tastes of coffee despite the milk. The espresso share is generous relative to the total volume, and the foam adds height without diluting the cup any further. A cappuccino is usually a 5 to 6 oz drink, in the region of 150 to 180 ml, where the espresso must still cut through the milk.
Ingredients and equipment
For a cappuccino at home the list is short. Coffee freshness and your ability to build dense foam do most of the work.
- 18 to 20 g of freshly ground coffee for espresso, fine grind
- 100 to 120 ml of cold whole milk (whole milk builds thick foam most easily; a barista oat drink also works)
- Filtered water for the machine
- An espresso machine with a steam wand, a milk jug and a 5 to 6 oz cappuccino cup
- Scales and ideally a thermometer to target 60 to 65 degrees Celsius
- Cocoa powder, optional, to finish
The step-by-step method
Success comes down to two moves: a clean extraction and milk stretched into dense foam. The cappuccino differs from the latte mainly in the aeration phase, which lasts longer to build more foam.
- Dial in the grind and dose. Weigh 18 to 20 g of freshly ground coffee for a double basket, with a fine espresso grind. Spread the grounds evenly and tamp level, without forcing.
- Pull the espresso. Pull a single or double espresso, about 25 to 60 ml, in 25 to 30 seconds. Catch the shot straight in the 5 to 6 oz cappuccino cup. An intense, syrupy coffee gives the drink its backbone, because it has to stay present beneath the foam.
- Stretch the milk into thick foam. Pour cold milk into the jug without going past the base of the spout. Hold the steam wand just under the surface to draw in air. For a cappuccino, keep this stretching phase going longer than for a latte, so you build a deeper layer of foam (you hear a steady tearing or paper-like sound). Then submerge the wand to spin the milk and fold the bubbles in. Cut the steam at 60 to 65 degrees Celsius. You are after a thick, airy foam of about 1 to 2 cm.
- Polish the milk. Tap the jug on the bench to burst the largest bubbles, then swirl the milk in circles until the surface is glossy and uniform. Unlike a flat white, the goal is not to melt all the foam away but to keep a dense, smooth foam with no craters.
- Pour and serve. Pour the milk first into the centre of the espresso to combine coffee and milk, then let the foam crown the surface by 1 to 2 cm. Dust with a little cocoa powder if you like. Serve at once, while the foam is firm and hot.
Cappuccino vs latte vs flat white: the table
All three drinks start from the same pairing of espresso and milk, but differ in serving volume, foam depth and therefore coffee intensity. The figures below are common specialty coffee references.
| Drink | Serving volume | Foam depth | Profile |
|---|---|---|---|
| Cappuccino | 150 to 180 ml | thick, about 1 to 2 cm | airy foam dominant, strong coffee |
| Flat white | 150 to 160 ml | thin, about 0.5 cm | strong coffee, integrated microfoam |
| Latte | 220 to 300 ml | thin to moderate, about 0.5 to 1 cm | more milk, milder coffee |
In short: at a volume close to the flat white, the cappuccino stands out by its much thicker foam. And against the latte, it sets itself apart with a smaller volume, a more present coffee and a noticeably more generous cap of foam.
Frequently asked questions about the cappuccino
What is the ratio of a cappuccino?
The classic Italian cappuccino follows an equal three-part ratio: one third espresso, one third steamed milk and one third milk foam. Built on a single or double espresso (about 25 to 60 ml), it reaches a serving volume of 150 to 180 ml in a 5 to 6 oz cup. The foam is thick and airy, around 1 to 2 cm deep.
What is the difference between a cappuccino, a latte and a flat white?
The cappuccino is defined by its thick, airy foam, about 1 to 2 cm, in a 150 to 180 ml cup. The flat white has a similar volume but a thin foam of roughly 0.5 cm and more liquid milk. The latte is served in a larger volume, often 220 to 300 ml, with thin to moderate foam and a more diluted coffee.
What temperature should the milk be for a cappuccino?
Aim for around 60 to 65 degrees Celsius. At this range the milk stays sweet and the foam keeps its structure. Never boil it: above 70 degrees Celsius the milk tastes scalded and the foam collapses. The Specialty Coffee Association recommends taking the milk off the steam before about 70 degrees Celsius.
Can you make a cappuccino without an espresso machine?
A true cappuccino needs espresso and dense milk foam, so in principle a machine with a steam wand. You can get close using a moka pot for the coffee and a frother that builds thick, stable foam. The texture will differ, but the spirit of the cappuccino, an intense coffee crowned with airy foam, is within reach at home.
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