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What Is a Flat White? The Complete Coffee Drink Guide

A barista pouring milk into a flat white. Photo by Rosie Sun on Unsplash.

A flat white is a double shot of espresso topped with steamed milk and a thin layer of velvety microfoam — typically served in a 5 to 6 oz cup. It originated in Australia (or New Zealand, depending on which barista you ask) in the 1980s, and it sits between a cappuccino and a latte in size and milk-to-coffee ratio. The defining feature is the microfoam: smooth, glossy, paint-like — never the thick dry foam of a cappuccino.

Flat whites have become one of the most popular café orders in the US and UK over the last decade. This guide breaks down exactly what makes a flat white different from a latte, cappuccino, or cortado, how to order one properly, and how to make one at home.


A barista pouring milk into a flat white. Photo by Rosie Sun on Unsplash.
A barista pouring microfoam into a flat white. Photo by Rosie Sun.

The short answer: what is a flat white?

A flat white is:

  • A double shot of espresso (often a double ristretto in Australian cafés — concentrated, shorter, less bitter)
  • Topped with steamed milk at a 1:2 espresso-to-milk ratio
  • Finished with microfoam — a thin (about 0.5 cm) layer of glossy, paint-like milk foam
  • Served in a 5–6 oz ceramic cup — smaller than a latte, similar to a cappuccino
  • Originally Australian/New Zealand (1980s), now globally popular

The flat white is engineered to maximize coffee flavour in a milk drink. The smaller size, double shot, and minimal foam mean every sip is more coffee-forward than a latte while still being smoother than a cappuccino.


Flat white vs latte vs cappuccino: the table that explains everything

Flat whiteLatteCappuccino
Size5–6 oz12 oz5–6 oz
EspressoDouble shot (~2 oz)1–2 shots1 shot
Milk volume~3.5 oz steamed~10 oz steamed~2 oz steamed
FoamThin microfoam (~0.5 cm)Thin foam (~1 cm)Thick foam (~2 cm)
Espresso : milk1 : 21 : 51 : 1 : 1 (espresso/milk/foam)
TasteCoffee-forward, smoothMild, milkyStrong contrast, thick top
Caffeine~125 mg~75–150 mg~63 mg

The flat white sits squarely between the latte (lots of milk) and the cappuccino (lots of foam). It’s the right pick when you want to taste the espresso clearly but still want a milk drink. For deeper comparison on the latte side, see our flat white vs latte guide. For cappuccino comparisons, see cappuccino vs latte and cappuccino vs flat white.


The microfoam difference

The single most important technical feature of a flat white is the microfoam. This isn’t the airy, dry foam you see on a cappuccino — it’s a glossy, paint-like texture made by introducing tiny, uniform air bubbles into the milk during steaming. Properly made microfoam has the consistency of wet paint or thinned yogurt; when you tilt the pitcher, it pours like a single fluid rather than separating into liquid and foam.

Making microfoam takes practice. You hold the steam wand just below the milk surface for the first few seconds (introducing air), then submerge it to spin the milk in a vortex without adding more air (texturing). The temperature target is 60–65°C (140–149°F) — any hotter and the milk turns chalky; any cooler and the foam separates.

The microfoam is what lets baristas pour latte art on flat whites. The contrast between dark espresso and bright microfoam, plus the controlled pour, creates the rosettas and hearts you see on Instagram. A flat white without microfoam isn’t a flat white — it’s just espresso with hot milk.


The Australia vs New Zealand origin debate

Both Australia and New Zealand claim the flat white. The truth is murky, but the most-cited origin stories are:

  • Sydney, Australia (1985): Alan Preston of Moors Espresso Bar claims to have put “flat white coffee” on his menu in 1985, naming it after a similar drink he encountered in Queensland.
  • Wellington, New Zealand (1989): Fraser McInnes of DKD Café in Wellington claims to have created the flat white when a cappuccino he was making came out flat, and he served it anyway.

The debate is mostly fun rather than important. What’s clear is that the flat white emerged from the Australasian café scene in the late 1980s and spread globally through Australian baristas working in London cafés in the 2000s. Starbucks added it to US menus in 2015, which is what put it on most American radar.


How to order a flat white

“One flat white, please” works at any specialty café in 2026. A few variations worth knowing:

  • “Double flat white” — most flat whites are already double shots. Saying “double” is redundant in good cafés but won’t hurt.
  • “Triple shot flat white” — three shots in the same 6oz cup. Stronger, less milk per sip. Good for caffeine-sensitive moments.
  • “Wet flat white” — extra steamed milk, less foam. Closer to a small latte.
  • “Dry flat white” — more microfoam, less steamed milk. Closer to a small cappuccino.
  • “Flat white, oat milk” — milk substitutes are universal now. Oat milk steams particularly well and is the most-ordered alternative.

At Starbucks specifically, the flat white is one of the more authentic items on their espresso menu — proper double-ristretto shots, smaller cup than the latte, real microfoam (when the barista cares). Order it the same way you would at any independent café.


How to make a flat white at home

You need three things: an espresso source (machine or moka pot substitute), a way to texture milk, and a 5–6 oz cup.

You will need

  • An espresso machine with a steam wand (see our best espresso machine guide)
  • ~3.5 oz whole milk (or oat milk)
  • A 5–6 oz ceramic cup (the cup matters — too big and the proportions are wrong)
  • A milk pitcher (12 oz stainless steel is ideal)
  • Fresh espresso beans within 4 weeks of roast date (see our espresso bean picks)

The method

  1. Pull a double shot of espresso directly into your cup (18g coffee → 36g espresso, 25–30 second extraction).
  2. While the espresso pulls, steam the milk — fill the pitcher 1/3 full, hold the steam wand just below the surface for 3-5 seconds (introducing air), then submerge for the remaining 15-20 seconds (texturing into microfoam). Target 60-65°C.
  3. Tap the pitcher firmly on the counter to pop large bubbles, then swirl to integrate the microfoam.
  4. Pour into the espresso — start high to combine the espresso and milk, then drop the pitcher closer to the surface to “lay” the microfoam on top. The final layer should be glossy and thin.
  5. Drink within 2 minutes — the microfoam holds best when fresh.

The microfoam technique is the hardest part. Plan to use 2-3 cups of milk practicing before you get it right. For the espresso side of the equation, our how to make espresso at home guide covers the brewing fundamentals.


Caffeine and calories in a flat white

Flat white (6 oz)CaffeineCalories (whole milk)
Standard double-shot~125 mg~120
With skim milk~125 mg~70
With oat milk~125 mg~110
Starbucks Grande (16 oz)~195 mg~220

The caffeine in a flat white sits between a cappuccino (one shot, ~63 mg) and a strong latte (two shots, ~150 mg). Most US cafés use two shots by default, which puts the flat white at ~125 mg of caffeine. For deeper caffeine math across all coffee drinks, see our caffeine in a shot of espresso guide.


Watch: how to make a flat white

James Hoffmann’s home espresso video covers the milk-texturing technique you need for proper microfoam. Worth a watch if you’re trying to make a flat white at home and your milk isn’t coming out glossy.

https://www.youtube.com/watch?v=_h0n5N8Bmh4
Source: James Hoffmann on YouTube.

The bottom line

A flat white is a double shot of espresso topped with steamed milk and a thin layer of microfoam, served in a 5–6 oz cup. It’s the espresso-forward sibling of the latte and the silkier cousin of the cappuccino. Get a properly-made one at a specialty café and you’ll understand why it became a global phenomenon over the last 15 years. Make one at home and you’ll spend the next month perfecting your microfoam.


Frequently Asked Questions About Flat Whites

What exactly is a flat white?

A flat white is a double shot of espresso topped with steamed milk and a thin layer of microfoam (about 0.5 cm thick), served in a 5–6 oz ceramic cup. The drink originated in Australia and New Zealand in the 1980s and is engineered to be more coffee-forward than a latte but smoother than a cappuccino.

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

Three differences: size (5–6 oz vs 12 oz), milk volume (~3.5 oz vs ~10 oz), and foam (thin microfoam vs thicker foam layer). The flat white uses the same double shot of espresso in less milk, making the coffee flavour much more prominent. Lattes are milder; flat whites are coffee-forward.

Flat white vs cappuccino — what’s the difference?

Both are similar sizes (5–6 oz) but the milk texture is totally different. A cappuccino has thick, dry foam (about 2 cm) layered on top — you can see the foam clearly. A flat white has thin, glossy microfoam (about 0.5 cm) integrated into the drink — you can pour latte art on it. The cappuccino has more espresso-to-foam contrast; the flat white is smoother and more uniform.

How much caffeine is in a flat white?

Around 125 mg in a standard 6 oz double-shot flat white. The double espresso provides the bulk of the caffeine; the milk doesn’t change the total. Starbucks’s Grande flat white (16 oz) uses three shots and contains around 195 mg. For more on caffeine across coffee drinks, see our guide on caffeine in a shot of espresso.

Where did the flat white come from?

Australia or New Zealand — both countries claim it, and both have valid stories from the mid-1980s. Sydney’s Alan Preston (Moors Espresso Bar) put it on his menu in 1985. Wellington’s Fraser McInnes (DKD Café) said he invented it in 1989. The drink spread globally through Australian baristas working in London cafés in the 2000s and 2010s; Starbucks added it to US menus in 2015.

What is microfoam?

Microfoam is milk steamed with very small, uniform air bubbles — texture-wise, somewhere between wet paint and thinned yogurt. It pours from the pitcher as a single fluid rather than separating into milk and foam. Microfoam is what makes a flat white a flat white; without it, you just have espresso with hot milk. Making proper microfoam takes practice with a steam wand at the right depth and temperature.

Explore more in our coffee drinks hub.


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