How to Make a Flat White at Home
A flat white is a double espresso (about 18g in, 36g out) finished with ~4–5 oz of silky steamed milk and a thin layer of microfoam, served in a 5–6 oz cup. It has a higher coffee-to-milk ratio and thinner foam than a latte.
The flat white is an espresso-forward milk drink: a double shot under glossy microfoam, smaller and stronger than a latte. The whole game is the milk texture — silky, paint-like, integrated, never bubbly.
Ratio
18 g → 36 g (1 : 2)
Water
93 °C
Brew temp for the shot
Grind
Fine (espresso)
Dial for ~27–32s shot
Total time
~5 min
incl. steaming
The kit
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Breville Bambino Espresso Machine
Compact pump machine with a real steam wand — the key to microfoam.
View on Amazon →Baratza Encore ESP Espresso Grinder
The Encore tuned for the fine, consistent espresso range.
View on Amazon →Rattleware 12 oz Milk Frothing Pitcher
Tapered spout for steaming microfoam and pouring latte art.
View on Amazon →Timemore Black Mirror Basic 2 Scale
Dial the shot by weight — 18 g in to 36 g out.
View on Amazon →Method
Grind 18 g and pull a double espresso, aiming for ~36 g out in 27–32 seconds (a 1:2 ratio).
A balanced shot is the foundation — fix the espresso before the milk.
Purge the steam wand, then fill the pitcher about one-third with cold milk.
Cold milk gives you more time before it overheats.
Stretch: with the wand tip just under the surface, introduce air for 2–3 seconds — a gentle "tss tss," not a roar.
Expert tipA flat white wants only a thin layer of microfoam. Aerate too long and you get a bubbly cappuccino instead.
Submerge the tip slightly deeper and roll the milk into a smooth vortex until the pitcher is just too hot to hold (~60–65°C). Stop steaming.
The spin folds the foam into the milk for a glossy, uniform texture.
Tap the pitcher on the bench and swirl until the milk looks like wet, glossy paint with no separate foam.
Expert tipIf foam and liquid milk separate, swirl harder — never pour split milk.
Pour from a height to mix, then drop the pitcher close to the cup and pour through to finish with ~1 cm of microfoam on top.
Pouring close lets the foam surface for latte art.
Watch it done
The source videos we studied to build this method.
A thorough walkthrough of milk steaming and the espresso-milk drinks, including the flat white.
A concise flat white guide covering shot, steaming, and pour.
Why this works
A flat white is defined by ratio and texture. The double shot (≈1:2) keeps the coffee assertive under a small volume of milk, so it reads stronger than a latte. Steaming has two phases: a brief "stretch" that injects air for foam, then a "roll" that spins that foam into the milk as microfoam — millions of tiny bubbles that carry sweetness and give the silky mouthfeel. Stopping at ~60–65°C matters: past ~70°C milk proteins denature and the sweetness turns to a cooked, eggy note.
Where beginners go wrong
- 1
Big bubbles or stiff, dry foam
You aerated too long. Limit the air-injection "stretch" to 2–3 seconds, then submerge the tip and roll.
- 2
Scalded, eggy-tasting milk
You went too hot. Stop steaming at ~60–65°C — when the pitcher is just too hot to hold comfortably.
- 3
Foam and milk separate before you pour
You didn’t integrate. Tap and swirl the pitcher to "wet paint" texture immediately after steaming, and keep it moving until you pour.
- 4
Drink tastes bitter or burnt
The espresso is over-extracted or the roast too dark. Aim for ~18 g in to ~36 g out in 27–32 seconds and use a fresher, lighter roast.
What you should taste
Espresso-forward and sweet, with a velvety body and a clean milky finish — the coffee should clearly lead, unlike a milkier latte. If it tastes bitter or ashy, your shot is over-extracted or the roast is too dark; if it tastes thin or sour, the shot is under-extracted.
FAQ
What’s the difference between a flat white and a latte?
A flat white is smaller (5–6 oz) with a higher coffee-to-milk ratio and a thin layer of microfoam, so the espresso leads. A latte is larger with more steamed milk and a milder coffee flavor.
Flat white vs cappuccino?
A cappuccino has a thick, drier foam cap (roughly equal espresso, milk, and foam). A flat white is silky microfoam integrated throughout, with only a thin layer on top.
Can I make a flat white without an espresso machine?
You can approximate it with a Moka pot or AeroPress for the coffee and a handheld frother for the milk, but true microfoam and a real espresso shot need a steam wand and a pump machine.
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