Introduction:Flat White is renowned for its intense flavor and delicate microfoam layer, making it a favorite among many coffee enthusiasts. Compared to lattes and cappuccinos, Flat Whites are served in smaller cups with thinner milk foam, allowing the intrinsic aroma and layered complexity of the coffee to shine through. This article will delve into the key techniques for crafting a great Flat White, covering everything from choosing the right espresso base and controlling milk foam thickness to understanding how it differs from other hot milk-based coffees—guiding you step by step to master the brewing secrets of this small yet premium coffee.
Flat White is a small cup of hot milk coffee celebrated for its rich and intense taste. With a relatively small total volume and less milk, it allows the original flavors of the coffee to be presented more fully. Originating from Melbourne, Australia, this coffee beverage has been widely popular across Europe, America, and Australia since the 1980s, and has now become a staple on the menus of specialty coffee shops.
To brew a satisfying Flat White, three key elements are crucial: the extraction technique of the espresso, the fineness and thickness of the milk foam, and the golden ratio between milk and coffee. These three components are closely interconnected, and any slight misstep can significantly diminish the overall flavor.

What sets Flat White apart from lattes or cappuccinos mainly lies in the thickness of the milk foam layer and the overall intensity of the taste. Typically, cappuccinos have the thickest milk foam, about 1 to 2 centimeters, lattes range between 0.5 to 0.7 centimeters, while Flat White must maintain a foam layer between 0.3 to 0.5 centimeters, or even thinner, to create an almost 'flat' surface effect—this is also the origin of the name "Flat."
Additionally, many baristas choose not to froth extra milk foam in order to allow customers to fully experience the aroma of the coffee crema, pouring heated milk directly into the espresso. However, if you prefer a smoother and silkier texture, it is recommended to retain a milk foam layer of about 0.3 centimeters. This way, the surface remains even while adding a velvety mouthfeel.
In terms of the ratio of milk to coffee, Flat White is designed to be more intense, hence using relatively less milk. For example, stores often use an 180-milliliter ceramic cup as the standard size, using two Ristrettos (about 30 grams of coffee liquid) as the base, then adding 150 grams of hot milk. This approach concentrates the aroma and flavor of the coffee while retaining the smooth texture of the milk.
The process of making a Flat White can begin with extracting the espresso. First, wipe the portafilter basket with a clean cloth, grind about 20 grams of coffee beans, and evenly fill them into the basket, then gently level the coffee with a tamper. Next, use a distribution tool to ensure an even coffee bed, and then tamp the coffee grounds with a puck presser to ensure stable and uniform water flow during extraction.
Start the extraction by first releasing a small amount of hot water to wet the group head; this helps remove any residual coffee grounds and preheat the components. Then securely attach the portafilter to the group head and begin the actual extraction. Observe the extraction process—if the scale shows that 28 to 30 grams of coffee liquid has been extracted within 27 to 28 seconds, it’s time to stop. The resulting double Ristretto will form the flavor core of your Flat White.

Pour the extracted espresso into a preheated cup, then prepare the milk foam. Pour 150 milliliters of fresh milk into a pitcher and steam it using the steam wand to create fine milk foam with a thickness of about 5 millimeters. Be mindful of the temperature while steaming to avoid overheating, which can negatively affect the taste. Gently swirl the steamed milk and then blend it evenly with the espresso in the cup—this step directly impacts the final drink's smoothness and layering.
Different coffee beans have a significant impact on the final flavor of Flat White. Take the “Sunflower Warm Sun Blend” as an example—this bean offers a fresh and mild profile, with distinct citrus and stone fruit notes. When combined with milk, it delivers a smooth, chocolate-milk-like mouthfeel, with a warm and lingering aftertaste. For those who prefer a bolder and more robust flavor, a dark-roasted classic Italian blend can also be chosen, delivering deeper caramel and nutty aromas that enrich the flavor dimension of Flat White.
In summary, making an excellent Flat White requires precise control over extraction and milk foam techniques, as well as adjusting ratios and flavor profiles according to the chosen coffee beans. Mastering these fundamental points will allow you to easily recreate a balanced, smooth Flat White at home or in a café.
The above content is compiled by CoffeeHunters, a coffee news website.