system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is sourdough bread?


assistant
Sourdough bread does not use yeast to rise. Instead it uses a starter, which is fermented dough, as its rising agent. Hence it is classified as a naturally leavened bread. It normally takes longer for a sourdough bread to rise. Sourdough bread is more flavourful than normal bread. 

The starter is created using flour, salt and water. It has to be "fed" and maintained with fresh flour for the starter to remain alive. Staters can be stored in a cooler environment in order to slow down the fermentation prices.