Flat White
A strong short shot under silky milk with a thin layer of foam, served at about 160 ml. Not a small latte, whatever the chain menus imply.
At a glance
- Espresso : milk
- 1:4
- Active time
- 3 min
- Total time
- 5 min
- Makes
- 1 cup
- Serve
- In a 160 ml cup
- Kit
- Espresso machine
Ingredients
Note: Whole milk makes the best microfoam. Fat carries flavour and protein builds the foam, and skim gives you stiff dry bubbles instead of silk.
Method
-
Pull a double ristretto
Eighteen grams in, 27 g out. A full 36 g double works but the drink gets thinner and more bitter.
20 to 22 seconds -
Aerate for two seconds
Put the steam wand tip just under the surface and open the steam fully. You want a steady hiss, like tearing paper, for about two seconds.
That short burst is all the air the drink takes. Longer and you are making a cappuccino.
Aerate 2 seconds -
Roll it smooth to 60°C
Push the wand deeper and angle it so the milk spins in a tight whirlpool. That vortex folds the air you added into bubbles too small to see.
Cut the steam at 60 to 65°C. The jug should be too hot to hold comfortably but not painful.
-
Groom the milk
Tap the jug once on the bench to pop any large bubbles, then swirl it until the surface looks like wet paint. Do this straight away; textured milk separates within thirty seconds.
-
Pour low and finish high
Start pouring from a height into the centre so the milk goes under the crema, then drop the jug close to the surface to let the foam come through, and lift to cut a line as you finish.
The surface should be flat, glossy and about 5 mm of foam deep.
Why this works
The flat white is defined by its milk, not its size. Flat means the foam is thin and dense rather than thick and airy, and white distinguishes it from the black coffees on an Australian menu. A latte at the same volume would have more foam, more milk and a longer shot; a cappuccino would have a thick dry head.
Microfoam is the technical heart of it. When you aerate milk, you are injecting air and letting its proteins, mostly casein and whey, unfold and wrap around the bubbles to stabilise them. Do that briefly and then spin the milk hard, and those bubbles are broken down until they are too small to see individually, which is what gives textured milk its paint-like sheen and its weight on the tongue.
Temperature sets the sweetness. Milk tastes sweetest around 60 to 65°C, because the lactose is more perceptible warm and the proteins have not yet denatured. Past about 70°C the whey proteins break down and release sulphur compounds, which is the scalded, slightly eggy taste of over-steamed milk. There is no recovering it.
Who invented it is genuinely disputed and likely to stay that way. Sydney and Auckland both have credible claims from the mid-1980s, with documented sightings on menus in both cities within a couple of years of each other. The evidence does not clearly settle it, and anyone who tells you otherwise is picking a side.
Variations
- With a full double: 36 g out instead of 27 g, which is how many cafes build it now.
- Smaller: a piccolo, the same idea in a 100 ml glass.
- Oat milk: barista versions foam well. Expect a sweeter, slightly thinner drink.
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Questions
Flat white vs latte?
A flat white is smaller, around 160 ml against 240 ml or more, built on a shorter shot, and has about 5 mm of dense microfoam rather than a centimetre of lighter foam. It tastes considerably more of coffee.
Why is my milk not silky?
Too much aeration, or aerating too late. Add air only in the first couple of seconds while the milk is still cold, then submerge the wand and spin it. Air introduced after about 37°C will not break down into microfoam.
What temperature should the milk be?
Sixty to 65°C. Milk is sweetest there. Above about 70°C the whey proteins denature and the milk tastes scalded, and nothing fixes it afterwards.
Who invented the flat white?
Australia and New Zealand both claim it, with credible evidence from Sydney and Auckland in the mid-1980s. The record is genuinely ambiguous and no definitive first has been established.
Can I make one with non-dairy milk?
Barista-formulated oat milk textures nearly as well as dairy and is the usual choice. Standard oat, almond and rice milks lack the protein to hold microfoam and tend to collapse or split against the acid in espresso.