What is the primary ratio of espresso to steamed milk in a cafe latte?

The primary ratio of espresso to steamed milk in a cafe latte is widely recognized as 1 part espresso to 3 parts steamed milk. This ratio creates a balanced beverage where the strong flavor of the espresso blends harmoniously with the creaminess of the steamed milk, resulting in a rich and smooth texture.

In a cafe latte, the steamed milk makes up the majority of the drink, which allows the espresso's bold flavor to shine through without being overwhelming. The specific proportion can vary slightly among coffee enthusiasts and establishments, but the standard ratio is generally accepted to be 1:3 rather than 1:5, 1:4, or 1:6. Ratios involving more milk would dilute the coffee flavor considerably, resulting in a drink consistency that strays from the traditional cafe latte experience.