Milk drinks: cappuccino, latte, and flat white

Start from the espresso base

Every drink here sits on one shot of espresso. The base is the same one taught in the espresso guide: about 18 g of coffee in the basket yielding about 36 g of espresso in the cup, a ratio of roughly 1 to 2, pulled in around 25 to 30 seconds. Get that shot balanced first. Milk hides a thin or sour shot less than people expect, so a good drink starts with a good base.

All three drinks are built on this same standard shot. What changes is the cup size and how much milk goes on top: a flat white packs the same shot into a smaller cup with less milk, so the coffee-to-milk ratio is higher, while a latte stretches that same shot under far more milk. Whole milk steams the most forgivingly because its fat and protein build a stable foam, though most milks and many plant alternatives can be textured with practice.

Steaming milk: stretch, then texture

Steaming milk does two jobs in sequence. First you stretch it, adding air to grow the volume and build foam. Then you texture it, sinking the wand to spin the milk and break the air down into fine, even bubbles. Stretch happens in the first few seconds while the milk is still cool. Texture is the rest of the time, with no new air going in.

1. Start with cold milk in a cold pitcher, filled to about a third so there is room for it to grow.
2. Purge the steam wand, then set the tip just under the surface and open the steam. A gentle hiss means air is folding in. This is the stretch.
3. Once the milk has grown and warmed slightly, drop the wand a little deeper to stop adding air and start the milk spinning into a smooth whirlpool. This is the texture phase.
4. Cut the steam when the pitcher feels hot to the side of your hand but not painful, around 60 to 65 °C. Wipe and purge the wand straight away.
5. Swirl the pitcher to fold the foam back into the milk, then tap it once on the counter to pop any large bubbles. You want it glossy, not stiff.

Good steamed milk is microfoam: small, uniform bubbles that read as a glossy paint, not a dry cap of bubbles like a bubble bath. Microfoam pours as a single liquid and folds into the espresso. Large, dry bubbles sit on top and split the drink into coffee underneath and foam above. The difference is mostly in the texture phase, where the spinning milk shears the big bubbles down to nothing.

The three drinks by ratio and foam

With a balanced shot and a pitcher of glossy microfoam, the drink you end up with is a choice of proportions. Here is how the three classics divide the same two ingredients.

Read the table by what changes. The cappuccino keeps the espresso loud and tops it with a deep, airy foam in a small cup. The latte stretches the same shot under far more milk in a bigger cup, so it tastes mild and milky. The flat white sits between them: a small cup like a cappuccino, but the same shot under a thin microfoam with less milk, so the coffee stays present while the texture stays silky rather than foamy.

Pouring and reading the result

Pour the milk into the espresso in one steady motion, starting high to let the milk slip under the crema, then dropping the pitcher close to the surface near the end if you want the foam to surface. You do not need latte art for the drink to be right. A clean, even pour that folds the microfoam through the shot is the goal, and the look follows the texture.

Taste tells you what to fix. If the drink tastes flat and washed out, you likely used too much milk for the shot, so move to a smaller cup or cut the milk. If the foam sits dry and stiff on top, you added too much air in the stretch or did not texture long enough, so spin the milk more before you pour. If it tastes faintly cooked and the sweetness is gone, you took the milk too hot, so stop the steam earlier next time.

Common questions

What is the difference between a cappuccino, a latte, and a flat white?

All three are espresso and steamed milk, and they differ by proportion. A cappuccino is roughly equal espresso, steamed milk, and a thick foam cap in a small 150 to 180 ml cup, so the coffee stays prominent. A latte is the same shot under much more steamed milk with only a thin layer of foam, in a larger 240 to 300 ml cup, so it tastes mild and milky. A flat white is the same shot under steamed milk with a thin microfoam in a small 150 to 160 ml cup, which gives a higher coffee-to-milk ratio than a latte with a silkier texture than a cappuccino.

How hot should I steam the milk?

Aim for about 60 to 65 °C, which is hot to the touch but well short of boiling. Above roughly 70 °C the milk scalds: it loses sweetness, takes on a faintly cooked, eggy note, and the foam you built breaks down. Without a thermometer, stop the steam when the side of the pitcher becomes too hot to hold comfortably for more than a second or two.

What is microfoam and why does it matter?

Microfoam is steamed milk made of small, uniform bubbles, so it reads as a glossy, paint-like liquid rather than a dry pile of bubbles. It matters because microfoam pours as one liquid and folds into the espresso, which gives an even, silky drink. Large, dry bubbles sit on top and split the cup into coffee below and foam above. You build microfoam by adding only a little air early, then texturing the milk by spinning it so the bubbles shear down to a fine, even foam.

Do I need a special machine to steam milk?

You need a source of steam, which on most home setups is the steam wand on an espresso machine. The technique is the same regardless of the machine: stretch a little air into cold milk near the surface, then sink the wand to spin and texture it, stopping around 60 to 65 °C. Stand-alone milk frothers and steaming jugs can also build foam, though a proper steam wand gives the most control over microfoam.

Related guides

• Pulling espresso at home
• What extraction is

Referenced by

• Pulling espresso at home