What is a flat white? In short, a flat white is an espresso-based drink made with steamed milk and a thin layer of microfoam, served in a small cup holding 150 to 180 ml. Yet more hospitality professionals than you might expect experience a moment of uncertainty when a guest orders one: is this a small latte, or is it something else entirely?
That uncertainty is understandable, because the flat white has its own identity that goes beyond just the size of the cup. The ratio, the texture of the milk, and the strength of the coffee all come together to define the drink and set it apart from anything else that resembles it. In this article, you’ll learn the definition and meaning of a flat white, how it compares to a cappuccino and a latte, and how to prepare it correctly, step by step.
What Is a Flat White: Definition and Characteristics
The essence of the drink
A flat white is an espresso-based drink made with steamed milk and a thin layer of microfoam, served in a small cup holding 150 to 180 ml. That sounds simple, but the details make all the difference. All reputable coffee sources describe the same characteristics: a double espresso or double ristretto as the base, a higher coffee-to-milk ratio than in a latte or cappuccino, and fine microfoam without a thick foam head.
The flat white retains its strong flavor. The milk adds creaminess, and—thanks to the heating of the lactose—a subtle natural sweetness, but no extra volume. That’s exactly why guests who consciously choose a flat white aren’t looking for a mild, milky drink. They want to taste the espresso in every sip, but enveloped in a velvety texture. Want to learn more about coffee, different brewing methods, and barista techniques? Then check out our coffee workshops.
Where the name comes from
The flat white originated in the coffee culture of Australia and New Zealand, presumably in the 1980s. Its exact inventor is a matter of debate. The strongest Australian claim points to Sydney in 1985, when Alan Preston is said to have added the term to the menu at Moors Espresso Bar. New Zealand claims refer to Auckland and Wellington during the same period, but are less well-documented in terms of primary evidence.
The name “flat” directly refers to the absence of a thick head of foam, unlike a cappuccino. That also makes it the quickest way to describe it at the bar: no tall tower of foam, but a smooth, compact surface. A drink that looks just like it tastes: clean and bold.
How does a flat white compare to a latte and a cappuccino?
What the ratios Tell Us About Each Beverage
A classic cappuccino consists of equal parts espresso, hot milk, and foam, typically with one shot of espresso in a 150- to 180-ml cup. It has the most foam of the three and a distinctly light, airy texture. A latte typically uses one shot of espresso in a ratio of 1:4 or more to milk, served in a 200-ml cup or larger, with just a thin layer of foam on top.
The flat white stands in a class of its own: a double espresso, a milk-to-coffee ratio of about 1:2, a 150- to 170-ml cup, and very fine microfoam without a thick layer. The key rule every barista should remember: cappuccino has the most foam, latte has the most milk, and the flat white has the strongest coffee flavor per sip. Anyone who knows the difference between a flat white and a cappuccino can handle any order with confidence.
How to visually identify them on the top of the cup
A cappuccino is easy to recognize: it usually has a taller, airier layer of foam than the other drinks. The latte has a smooth surface with a thin layer of creamy foam, leaving plenty of room for latte art. At first glance, the flat white resembles a latte, but it’s served in a smaller cup, has a thinner layer of foam, and has a more compact texture.
Practical advice for the bar: if a guest is torn between a latte and a flat white, ask one specific question. Do you want a stronger coffee flavor, or a milder drink? If the answer is “stronger coffee,” then the flat white is the right choice. That kind of targeted guidance is exactly what guests expect from a professional behind the bar.
Espresso as the foundation of the flat white
Double espresso or ristretto: which one works best?
Flat white coffee is based on a double espresso or a double ristretto, depending on the café’s method. A ristretto provides more intensity with less volume, which further enhances the coffee-to-milk balance in a small cup. For the dosage, use about 18 to 20 grams of ground coffee for a double shot, yielding 30 to 40 ml of espresso.
The espresso machine performs best at around 90 to 95 degrees Celsius. Always let the machine warm up completely before you start. A cold machine produces an under-extracted espresso that tastes too acidic, and in a flat white, there isn’t enough milk to mask that. Of course, the coffee beans you choose also affect the final result. For example, read more about the difference between Arabica and Robusta coffee beans.
Why the espresso ratio is so crucial
In a flat white, the ratio is roughly 1:2—espresso to milk. That means there’s less leeway than with a latte. If the espresso is too weak, the coffee flavor is completely masked by the milk, and the drink loses its purpose. With a flat white, the quality of the extraction is immediately evident in the final result.
Practical advice: Tamp evenly, always use freshly ground coffee, and adjust the dose if the flavor is too bitter or, conversely, too watery. Pay attention to the grind setting, dose weight, the force of the tamp, and the extraction time—every detail in the brewing process matters. After all, a good flat white starts with a good espresso.
Microfoam: the technology that makes all the difference
What Microfoam Is and Why It’s Essential for a Flat White
Microfoam is milk that has been frothed so finely that the bubbles are barely visible, but the milk has a soft, velvety texture. The result resembles thin, slightly lumpy cream: smooth, glossy, and very fluid, without any large air bubbles. This is what distinguishes a well-made flat white from a poorly made cappuccino.
It’s the texture that envelops the espresso that defines the flat white—not a puffy layer of foam on top. Customers who order a flat white expect a creamy, compact drink. Coarse foam or large air bubbles create a completely different mouthfeel and immediately give away that something went wrong during the frothing process.
The right temperature, consistency, and technique
The ideal milk temperature is between 60 and 65 degrees Celsius. Never let it boil: above 70 degrees, the milk loses its natural sweetness and the texture of the microfoam deteriorates. A good rule of thumb is that the milk pitcher should feel hot but still be just bearable to hold.
Use the steam wand in two phases. First, hold the wand just below the surface for a short stretching phase, during which air is added. Then, lower it slightly deeper into the milk to create a rotating motion that finely disperses the air. The sign that it’s done is a slight swirling motion in the milk and a glossy, uniform texture with no visible bubbles.
When making a flat white, keep the steaming time shorter than for a cappuccino: this will create more microfoam and a thinner layer of foam. A manual milk frother or whisk can be used as an alternative, but offers less control over texture and temperature than an espresso machine’s steam wand. For a consistent flat white, the steam wand is the most reliable choice. Want to take this technique to the next level? In the Latte Art Basics workshop, you’ll learn how to work with milk texture, microfoam, and pouring techniques.
How to Make a Flat White, Step by Step
Preparation: cup, espresso, and quantities
Want to know how to make a flat white? Start by preheating a 150- to 170-ml cup with hot water so the drink cools more slowly after pouring. Grind the coffee finely and measure out about 18 to 20 grams. Tamp evenly and extract a double espresso of 30 to 40 ml directly into the cup. Then fill the milk pitcher with about 100 to 130 ml of milk—that’s enough for the desired volume and to create a good layer of microfoam.
How to Froth and Pour Milk: Here’s How to Do It Right
Purge the steam wand briefly before you begin to remove any condensation and milk residue. Place the tip just below the surface of the milk and open the steam fully. Add air for a few seconds during the stretching phase, until you hear a soft sound. Then lower the tip slightly deeper into the milk to perform the swirling motion that finely disperses the air. Stop steaming at around 60 to 65 degrees Celsius.
Next, tap the milk pitcher lightly on the counter and swirl it around to remove any large bubbles. Next, pour the milk from a slightly higher position, aiming for the center of the cup, so that the hot milk mixes with the espresso. Bring the pitcher closer to the surface when the cup is almost full and pour more slowly, so that the fine foam settles on top.
The result is a compact cup of flat white with a smooth, creamy surface and a thin layer of microfoam. The espresso and milk are well blended, the coffee flavor is distinctly present, and the mouthfeel is velvety. Once you’ve mastered this, you can easily create latte art, as a good microfoam texture makes the technique much more accessible. During our Coffee Experience, you’ll also get an up-close look at how specialty coffee is roasted, tasted, and brewed.
What You Know Now About the Flat White
What is a flat white? It’s not a small latte or a light cappuccino, but a drink with its own identity: a double espresso, served in a small cup, with a high coffee-to-milk ratio and fine microfoam without a thick foam head. A cappuccino has the most foam, a latte the most milk, and a flat white the strongest coffee flavor per sip. This distinction isn’t just useful for the barista—it’s also valuable information to share with guests who are unsure about what to order.
The technique for microfoam is the key to a consistent flat white. A barista doesn’t learn this in a single day, but through repetition, attention to temperature, and a feel for the milk’s texture. Those who understand the details work with greater confidence behind the bar and provide a better experience for the guest. That’s why Barista Studio isn’t just about brewing coffee—it’s also about the knowledge and technique behind a great cup of coffee.
