Australian Flat White Espresso
Flat White
A double ristretto under a thin layer of silky microfoam: the small cup that conquered the world.
A flat white is espresso and steamed milk with a higher share of coffee than a latte and only a thin, glossy layer of microfoam on top. Made on a double ristretto, it tastes of dark cocoa and sweet milk in a small, velvety cup.
Sensory profile
How it unfolds
Where it sits
That is 130 mg in one serving (5.5 oz (165ml)), a concentration of 78.8 mg per 100 ml. The scale above ranks whole servings, and servings differ in size, so a larger drink can sit further right while being weaker cup for cup.
Editorial estimate, not a laboratory measurement
Related gear
| Brewing method | Espresso Machine + Milk Steam Wand |
|---|---|
| Coffee-to-water ratio | 1 part ristretto to about 5 parts milk |
| Base & finished drink | 28g → 163g |
| Grind size | Ultra-Fine Espresso (finer than latte) |
| Water temperature | 200°F / 93°C |
| Target brew time | 22–25 seconds extraction |
| Serving | 5.5 oz (165ml) |
What you need
- 18 g freshly roasted coffee, ground fine for espresso
- About 135 ml whole milk, or an oat milk made for steaming
- Filtered water for the machine
Required gear
- Espresso machine with a steam wand
- Burr grinder with fine adjustment
- Portafilter with a double basket
- Tamper
- Scale accurate to 0.1 g
- Small milk jug
- Thermometer (optional)
- Warm cup or glass
Step-by-step protocol
- 0:00Warm a cup of about 165 ml. Dose 18 g of finely ground coffee into the double basket and tamp flat and even.
- 0:20Pull a double ristretto into the cup: 18 g of coffee into about 28 g, in roughly 20 to 25 seconds.
- 0:50Steam about 135 ml of cold milk to 60 to 65°C. Let in air for only two or three seconds at the start, then sink the wand and spin the milk until it is a glossy microfoam with no visible bubbles.
- 1:30Tap the jug and swirl it. Pour from a little height at first so the milk goes under the crema, then bring the jug close to the surface to let the microfoam spread across the top. Serve at once.
Troubleshooting
What it may be good for
How strong is it?
We list about 130 mg for a 5.5 oz flat white, a double shot's worth of coffee in a small cup. That is more than the roughly 95 mg of a typical 8 oz cup of brewed coffee.
Why microfoam matters
Microfoam is milk steamed until the bubbles are too small to see. It blends with the espresso instead of sitting on top of it, which is what gives a flat white its velvety texture.
What to watch out for
- Caffeine affects everyone differently. If you are pregnant or nursing, sensitive to caffeine, or have been told to limit it, check with your doctor about how much is right for you.
- Bright, high-acid coffees can feel sharp on an empty stomach for some people, so a little food with it helps.
A flat white is espresso and steamed milk with a higher share of coffee than a latte and only a thin, glossy layer of microfoam on top. Made on a double ristretto, it tastes of dark cocoa and sweet milk in a small, velvety cup.
Origin & Story
Ask where the flat white comes from and Sydney and Wellington give different answers. Flat whites were being served in Sydney in the early 1980s, and Alan Preston put one on the menu at Moors Espresso Bar in 1985, saying he had brought the idea from far north Queensland. In January 1985 a Parliament House cafeteria in Canberra even hung a sign reading flat white only during a milk shortage. New Zealand has its own claims, from a bar in Wellington in 1989 and a café in Auckland. The argument has never been settled.
What is certain is how it differs from other milk coffees. A flat white has more espresso for its size than a latte and none of the thick foam of a cappuccino. The milk is textured into microfoam, a layer only about 5 millimeters thick, so fine that the surface looks glossy, like wet paint.
Size matters too. In Australia a flat white is often served in a cup of around 200 ml, and in New Zealand in a smaller 175 ml cup. A typical one holds about 50 ml of double espresso under 130 ml of steamed milk.
The drink went global in the 2000s and 2010s, and on 6 January 2015 Starbucks introduced the flat white in its American stores.
To make one, pull a double ristretto, 18 g of coffee into about 28 g, into a 165 ml cup. Steam around 135 ml of milk to 60 to 65°C, stretching it only briefly so it stays dense and smooth, and pour it in a steady stream so the microfoam spreads across the top.
Reading the Flavor Profile
| Axis | Score |
|---|---|
| Sweetness | 65/100 |
| Acidity | 55/100 |
| Bitterness | 50/100 |
| Body | 80/100 |
| Aroma | 85/100 |
These values are comparative editorial positions within our own catalog, calibrated so entries can be ranked against each other. They are not laboratory measurements.
How much caffeine is in Australian Flat White Espresso?
One serving, 5.5 oz (165ml), contains approximately 130 mg of caffeine.
What temperature should I use for Australian Flat White Espresso?
Brew the base at 93°C (200°F). Where the milk is heated, 60–65°C is the target; past about 70°C it tastes scalded and loses its sweetness.
How long should Australian Flat White Espresso be extracted?
Timing: 22–25 seconds extraction. Method: Espresso Machine + Milk Steam Wand. Ratio: 18g in → 28g out (ristretto ratio). Grind or leaf format: Ultra-Fine Espresso (finer than latte).
Why does my Australian Flat White Espresso taste bitter?
In a milk drink, bitterness comes from the base (espresso pulled too long or tea steeped too long) or from scorched milk. Brew the base to the stated proportion, and if the milk is heated, stop at 60–65°C.
What is the difference between a flat white and a latte?
A flat white has less milk for the same amount of espresso and only a thin layer of microfoam, so it tastes more of coffee. A latte is larger, with more milk and usually a little more foam.
Where was the flat white invented?
Nobody knows for sure. Flat whites were being served in Sydney in the early 1980s, and cafés in Auckland and Wellington also claim the drink.
Who should avoid Australian Flat White Espresso?
Caffeine affects everyone differently. If you are pregnant or nursing, sensitive to caffeine, or have been told to limit it, check with your doctor about how much is right for you. Bright, high-acid coffees can feel sharp on an empty stomach for some people, so a little food with it helps. This information is educational and is not medical advice. If you are pregnant or breastfeeding, managing a cardiac or gastrointestinal condition, or taking prescription medication, discuss caffeine and botanical intake with a qualified healthcare professional before making changes.
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