The flat white is simultaneously one of the simplest and most misunderstood drinks in British coffee culture. Most coffee shops get it wrong. Pure mince, honestly: too much milk, too big, or indistinguishable from a small latte. Getting it right at home is absolutely achievable, and it starts with understanding what a flat white actually is.
What Is a Flat White?
A flat white is a double espresso with a small amount of microfoam milk, typically 120–150ml total volume. The key characteristics:
- Small: 120–150ml maximum. A latte is 200–300ml. A flat white in a 16oz cup is just a latte with a different name.
- Strong: The espresso-to-milk ratio is higher than a latte; you should be able to taste the coffee through the milk.
- Microfoam: Silky, integrated milk, not frothy, not bubbly. The foam should be so fine it’s essentially just textured milk.
What You Need
Essential equipment:
- Espresso machine with a steam wand (home machines: De’Longhi Dedica, Sage Bambino, or similar)
- Double espresso basket (18–20g)
- Small milk jug (300–350ml capacity)
- A thermometer (optional but helpful when learning)
Coffee: A medium-dark espresso blend performs best in milk drinks. The chocolate and caramel notes hold up beautifully once milk is added.
Our recommendation:
→ Rave Coffee Black Edition (ideal for flat whites)
Step 1: Pull Your Espresso
A flat white starts with a proper double espresso:
- Dose: 18–20g of ground coffee
- Yield: 36–40g of espresso (a 1:2 ratio)
- Time: 25–30 seconds
- Temperature: 92–94°C
The espresso should be strong, with a thick crema and no sourness or harshness. If it tastes sour, grind finer or extend your brew time. If bitter, grind coarser or shorten it.
Pre-heat your cup by filling it with hot water for 30 seconds. Cold cups kill espresso temperature.
Step 2: Steam Your Milk
This is where most home baristas struggle. Microfoam takes practice; don’t be discouraged if it takes 10–15 attempts to get right.
Milk choice: Whole milk is easiest to steam and produces the creamiest texture. Semi-skimmed works but produces thinner foam. Oat milk (barista edition: Oatly Barista, Minor Figures) steams well and is a good non-dairy option; avoid regular oat milk, which produces inconsistent results.
How to steam:
- Fill your jug to just below the spout (the handle area), roughly 150ml for a flat white
- Purge the steam wand briefly to clear condensation
- Submerge the wand tip just below the surface of the milk, angled slightly to create a whirlpool
- Open the steam fully
- For the first 3–4 seconds: keep the tip near the surface to introduce air (the stretching phase). You’ll hear a hissing sound. You want to add a small amount of air here, not froth it.
- After stretching: lower the jug slightly to submerge the tip deeper, continuing the whirlpool motion. The milk heats without adding more air.
- Target temperature: 60–65°C (should feel hot but not painful to hold the jug)
- Turn off steam, remove jug, wipe steam wand immediately and purge again
The resulting milk should look like wet paint: glossy, no visible bubbles, with a swirling pattern. If you have large bubbles, tap the jug on the counter and swirl to break them down.
Step 3: Pour
Pour the milk into the espresso in two stages:
- First: Pour quickly from a slight height to combine the espresso and milk. This creates the mix.
- Second: Slow down and pour from close to the cup surface to layer the microfoam on top.
The finished flat white should have a thin, glossy layer of microfoam across the surface, not a dome of froth.
The Ratio That Matters
Flat white: double espresso (36–40g) + 80–110ml steamed milk = 120–150ml total volume
Comparison:
- Cortado: equal parts espresso and milk (~60ml milk, 120ml total)
- Flat white: small amount of milk, strong espresso character (~80–110ml milk, 120–150ml total)
- Cappuccino: roughly equal thirds espresso, milk, foam (150–180ml)
- Latte: mostly milk, small espresso (~200ml total)
If your flat white is larger than 150ml, it’s a small latte. There’s nothing wrong with a small latte, but it’s a different drink.
Common Problems and Fixes
Bubbly milk: You added too much air during stretching. Stretch for 2–3 seconds only, then submerge the tip.
Milk tastes burnt: You overheated it (above 70°C). Steam to 60–65°C. Use a thermometer until you have the feel for it.
Coffee tastes watery: Your espresso was too weak, or your milk volume is too high. Check your espresso yield and reduce milk to 80–100ml.
Latte art won’t work: This comes last. Master the steaming and pour first. Latte art is entirely optional and purely aesthetic.
Choosing the Right Coffee
For flat whites, a medium-dark espresso blend works better than a light single-origin. You need enough body and sweetness to taste through the milk.
→ Pact Coffee The Original Blend
Both the Rave Black Edition and Pact Original work excellently in flat whites; the chocolate and caramel notes from both translate beautifully once milk is added.
Frequently Asked Questions
What’s the difference between a flat white and a latte? Size and ratio. A flat white is 120–150ml with a higher proportion of espresso. A latte is 200–300ml with more milk. In a flat white, you should clearly taste the espresso; in a latte, the milk is the dominant impression.
Can I make a flat white without an espresso machine? A true flat white requires espresso. The concentrated coffee is essential. An AeroPress with a fine grind and 1:5 ratio produces an espresso-adjacent concentrate that works in a pinch. Nespresso machines produce espresso adequate for flat whites. A cafetière or filter coffee is not strong enough to hold up through milk.
Do I need a steam wand for flat white milk? For proper microfoam, yes. A steam wand on an espresso machine produces the best results. A Nespresso Aeroccino or similar milk frother produces a coarser froth that works but isn’t the same texture. For a genuine flat white, a steam wand is the right tool.