How much foam is typically added to a cappuccino?

A cappuccino traditionally consists of equal parts espresso, steamed milk, and milk foam. When properly prepared, the foam should create a layered effect, typically about 1/2 cup of foam, which allows it to maintain its structure and visible presence atop the drink. This amount provides a good balance between the strong flavor of the espresso and the creaminess of the milk, enhancing the overall experience while ensuring the texture remains light and frothy. Understanding this balance is essential for crafting a cappuccino that meets the expectations of coffee enthusiasts.