Introduction:Flat White and Latte, as classic milk-based coffee drinks in specialty cafés, have long confused many consumers. What exactly sets them apart? From cup size, milk foam thickness to espresso ratio, this article details their core differences and explores the origin debate and regional practices. Readers will gain a deeper understanding of how to choose the right milk coffee based on personal taste, and master key preparation parameters — whether ordering or brewing at home.
Flat White has become a staple in many specialty coffee shops in recent years, but its definition varies widely depending on region and barista interpretation. Some believe the key lies in the small cup size, while others emphasize thin milk foam and a double espresso base. This article will delve into the historical origins, practical methods, and regional differences, comparing Flat White and Latte in specific aspects such as cup size, milk foam thickness, and coffee-to-milk ratio. It also references insights from practitioners in Australia, the UK, Ecuador, and other regions. Additionally, it shares the flavor characteristics of different blends when used in milk coffees, helping coffee enthusiasts better understand their preferences when ordering or brewing at home.
What is a Flat White?
Simply put, a Flat White is a coffee drink made with a double espresso base, steamed milk, and extremely fine microfoam. It’s particularly suited for consumers who enjoy strong coffee flavors yet want to experience the smooth texture of milk. If you prefer your coffee to stand out more while still maintaining moderate creaminess and a smooth mouthfeel, Flat White is a better choice than Latte. However, what exactly differentiates it from a Latte? That’s precisely the focus of our exploration.

The Origin and Evolution of Flat White
The birthplace of Flat White has long been disputed between Australia and New Zealand. But most sources indicate it emerged around the early 1980s and gradually gained global popularity in the specialty coffee market. Café operators in Melbourne have pointed out that the creation of Flat White was closely related to consumers transitioning from instant coffee to espresso. At the time, customers were looking for an option between a traditional cappuccino and pure espresso — a coffee with less foam and a flatter, smoother mouthfeel — thus giving rise to the Flat White.
As international chains like Starbucks included Flat White on their menus, it gradually became accepted by the mainstream market and is no longer limited to the specialty coffee circle.

Comparing Flat White, Latte, and Cappuccino
Though Flat White, Latte, and Cappuccino may all seem like “coffee with milk,” they actually differ significantly in detail. A Cappuccino usually comes in a smaller cup with thick foam; a traditional Latte is served in a larger cup with a lower foam ratio and a more balanced proportion of coffee to milk. The Flat White sits between the two — typically with a smaller cup size than a Latte, finer and thinner layers of foam, emphasizing the expression of the coffee’s inherent flavors.
In Australia, a Latte is often served in a 200 ml glass, while a Flat White is commonly poured into an 180 ml ceramic cup, helping retain the beverage’s temperature and concentrated flavor. Additionally, Flat White generally uses a double espresso, which also makes its coffee strength higher than that of a typical Latte.

Regional Differences in Defining Flat White
Baristas in different regions interpret Flat White differently. The operations manager at Repack Espresso in the UK noted that the main difference between Flat White and Latte lies in the coffee-to-milk ratio and the texture of the milk foam. Their standard is to serve Flat White in a 5 oz (approximately 140 g) cup with a double espresso; if the cup size exceeds 6 oz (about 170 ml), it’s considered a Latte.
Baristas in Ecuador believe that the presentation of Flat White is closely tied to the individual style of the barista, and different shops may adjust the recipe according to market demand. The manager of another café in the UK stated clearly that Flat White is typically 5 to 6 oz (140 to 170 ml), using a double espresso with extremely thin foam; whereas a Latte can be 7 to 10 oz (200 to 280 ml), with foam layers and texture falling somewhere between Flat White and Cappuccino.

How to Choose? Flat White or Latte?
In practice, Flat White usually comes in a smaller cup with a higher espresso ratio, making the coffee flavor more prominent. If you prefer a delicate yet intense coffee taste and don’t mind the smooth texture of milk, Flat White is a good choice. A Latte, on the other hand, contains more milk and a slightly lower coffee ratio, resulting in an overall milder and smoother flavor profile, suitable for those who prefer milk-forward drinks.
It’s worth noting that both Flat White and Latte can be adjusted according to personal taste — including the type of milk used, or even substituting with plant-based alternatives. For those who are lactose intolerant, suitable frothable plant milks can also perform well in a Flat White.
Conclusion: The Definition Isn’t the Point, the Experience Is
Although the definition of Flat White varies by location, what matters most is whether you can experience the essence of the coffee. No matter which milk coffee you choose, it’s recommended to communicate with your barista about your preferred ratio and flavor, so every sip meets your expectations. After all, the charm of coffee lies not just in strict categorization, but in the details and experience behind each cup.
The above content is compiled by CoffeeHunters, a coffee news website.