Flat White

Caffeine Levels

per ml cup


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A Flat White is an espresso based coffee drink popular in New Zealand and Australia.

The Flat White has also become common in the UK as the result of Kiwi expats living there and the drink catching on. 

Starbucks has begun selling the flat white in their USA restaurants. They make theirs with ristretto shots of espresso and steamed milk.

Starbucks Flat White Caffeine?

  • Short (8 floz): 130 mg
  • Tall (12 floz): 130 mg
  • Grande (16 floz): 195 mg
  • Venti (20 floz): 195mg

In the UK, Starbucks has just one size of white (short) and it contains 150 mg of caffeine.

A typical flat white consists of a shot of espresso and micro-foamed steamed milk with a thin layer of velvety froth on top. It has a much stronger coffee flavor than caffe latte

In good cafes, skilled baristas will pour the micro-foamed steamed milk in a way that causes the crema to produce lovely designs on top of the froth.

Various sizes of Flat Whites are available and larger sizes generally have two shots of espresso for a total of 154mg of caffeine.

Flat White caffeine can vary from cafe to cafe depending on quality/type of coffee used and precise measuring by the barista. 

Ingredients in Flat White

Espresso roasted and ground coffee and 2% milk

Sugar content: 12 grams (per 8.46 ounces).

Compare Sugar Content

Caffeine Concentration

Flat White contains 9.10 mgs of caffeine per fluid ounce (30.78mg/100 ml).

Caffeine (mg) per Ounce
100 90 80 70 60 50 40 30 20 10 0 Flat White 5 Hour Energy Coffee (Espresso) Coca-Cola Classic Spike Energy Drink