Why is yeast in pretzels?

Yeast is a small microorganism that eats sugar for food. When it is added to a dough, the sugar turns into carbon dioxide gas. This gas bubbles up and makes the dough rise, giving it a light and fluffy texture.

*It gives flavor*

Yeast also produces byproducts that give pretzels their characteristic flavor. These byproducts include alcohols and acids, which give pretzels a slightly sour and tangy flavor.

*It helps develop a crust*

The yeast also helps to develop a crust on pretzels. This crust is formed by the interaction between the yeast, the flour, and the water in the dough. It gives pretzels that distinctive shiny brown exterior.

In addition to these three essential functions, yeast also helps keep pretzels fresh. It does this by preventing mold from growing on them.

Overall, yeast is an essential ingredient in pretzels. It gives them their signature rise, flavor, crust, and freshness.