Introduction:Flat White, as a globally popular classic milk coffee, is renowned for its rich coffee aroma and silky smooth taste. But do you know what its standard serving size is? How many shots of espresso should it have? And how should you control the milk foam and temperature? This article delves into the origins and evolution of the Flat White, covering the differences between hot and cold versions, the extraction essentials of ristretto espresso, as well as practical parameters such as cup size, number of espresso shots, milk foam thickness, and temperature control—offering useful steps to help you easily master this classic coffee with distinct layers and a silky texture.
Flat White is a classic milk coffee originating from Australia and New Zealand, known for its intense coffee flavor and delicate milk foam. But what is the correct cup size for an authentic Flat White? And how many shots of espresso should it include? This article starts with the origins of the Flat White, compares the differences between hot and cold versions, and deeply explores the extraction techniques and flavor characteristics of ristretto espresso, while providing key parameters such as practical cup size options, number of espresso shots, milk foam thickness, and temperature control—to help you brew a balanced and smoothly textured Flat White at home.
In the Chinese market, Flat White is often referred to as “Ping Bai” (“平白”), “Australian-style Milk Coffee,” or even “Fresh Milk Espresso.” Starbucks, on the other hand, calls it “Flat White Coffee.” This beverage is a type of flavored milk coffee, first appearing in New Zealand and Australia. It is said that after World War II, as Italian immigrants brought coffee culture to New Zealand and Australia, this unique coffee gradually evolved in the 1980s. There are two main theories about its creation: one suggests that a barista originally intended to make a cappuccino but, due to insufficient milk foam, accidentally created a version with stronger coffee flavor and thinner foam; the other theory states that customers wanted a milk coffee with a more prominent coffee taste, leading to the birth of a small-sized milk coffee with a coffee-to-milk ratio of about 1:1 and a volume of only around 3 ounces (approximately 90 milliliters).
Regardless of its origin, the coffee concentration of a Flat White is noticeably higher than that of a latte. Many shops use ristretto espresso paired with thinner milk foam to create a velvety-smooth texture with a distinct coffee flavor. For this reason, traditional Flat Whites are usually only available as hot drinks. Although Starbucks also offers a cold version, the hot version tends to have a richer and more intense flavor. Those who prefer a bold taste are recommended to opt for the hot version.
Ristretto espresso is a variation of regular espresso. Compared to a standard shot, ristretto uses the same grind size and coffee dose but extracts a smaller volume of coffee, resulting in a higher concentration. If the coffee beans have notable acidity, the acidity in a ristretto will also be more pronounced. Generally, the coffee-to-water ratio for ristretto is about 1:1.6, making it more concentrated than the standard 1:2 ratio, delivering a more intense and layered taste.
Choosing the right cup size is crucial when making an authentic Flat White. A common standard serving size is around 200 milliliters, which allows for an ideal balance between coffee and milk. In terms of espresso dosage, most professional coffee shops use a double ristretto (about 35 grams of coffee liquid) to ensure a sufficiently pronounced coffee flavor. Then, hot milk with thin milk foam (about 0.3 centimeters thick) is poured from the center of the espresso, both blending the espresso and preserving its flavor layers. This method allows the drink to first deliver the fermented wine-like aroma of the espresso, followed by a strawberry milkshake-like fusion of coffee and milk, and finally a subtle hint of roasted nuts in the aftertaste.
The thickness and temperature of the milk foam also affect the overall drinking experience. Flat White emphasizes a silky smooth sensation rather than the airy texture found in lattes or cappuccinos. Therefore, it’s recommended to maintain a thin layer of milk foam about 0.3 centimeters thick, which is then integrated with the espresso before latte art is applied. The overall temperature should be controlled between 50–55 degrees Celsius. This temperature range showcases the delicate flavors of the coffee without being too hot, making it perfect for direct enjoyment.
The above content is compiled by CoffeeHunters, a coffee news website.
