The difference between a fizz and a sour lies in their use of eggs and carbonation. While both styles incorporate the use of eggs, they vary in the type of egg used and the addition of carbonation.
1. Eggs: Both fizzes and sours utilize eggs in their recipes, but the way they use them differs. Sours typically use only egg whites, which are beaten until frothy and then folded with air to create a foamy white head. This adds a light and airy texture to the drink. On the other hand, flips, a type of sour, use a whole yolk with cream, resulting in a thicker and creamier consistency.
2. Carbonation: Fizzes, as the name suggests, incorporate carbonation into the mix. This is usually achieved by adding club soda or sparkling water to the base ingredients. The addition of carbonation gives fizzes a refreshing and effervescent quality, making them an ideal choice for those who enjoy a fizzy drink. Sours, on the other hand, do not include carbonation as a standard ingredient, focusing more on the texture and flavor derived from the eggs.
To summarize, the key differences between a fizz and a sour lie in their use of eggs and carbonation. Sours primarily utilize egg whites to create a frothy head, while fizzes incorporate carbonation through the addition of club soda or sparkling water. The use of a whole yolk and cream in flips makes them the thickest of the three styles. Each style offers a unique drinking experience, with sours focusing more on texture and flavor, fizzes providing a refreshing effervescence, and flips offering a rich and creamy consistency.