Flat White is a coffee beverage from Australia and New Zealand. It is prepared by pouring microfoam (steamed milk from the bottom of a pitcher) over a single (30ml) or double shot (60ml) of espresso. It is similar to latte and cafe au lait and like other espresso based beverages it can be interpreted various ways.
The beverage is typically served in a small 150-160ml ceramic cup. Microfoam is used, resulting in a smooth and velvety texture. A flat white may incorporate latte art.
A flat white is similar to a cappuccino but uses microfoam instead of dry foam.
According to one report, "flat white" is simply another name for a latte, and the two beverages are identical. "The only difference between the two drinks is the vessel in which they're presented. A flat white is served in a ceramic cup, usually of the same volume (200 millilitres) as a latte glass. However, some cafes will top a latte with extra froth, while others may pour a flat white slightly shorter."
A flat white is similar to the Spanish Cafe con Leche, but the Cafe con Leche uses scalded milk. In a flat white the milk is steamed to 60°–70°C (140°F–158°F). Steaming the milk to a lower temperature retains the fats and proteins in the milk which retain a sweet flavour, lost when milk is steamed to scalding temperatures. A Cafe con Leche also lacks the head of microfoam.