After making sourdough bread at home for over 4 years, I am ready to share my knowledge with you here in this recipe. Sourdough is the healthiest gluten bread you can find. The wild yeast in the sourdough starter helps to bread down the gluten and makes it easier for you to digest it. Did you know that traditional instant yeast was invented in 1973. That's only 50 years ago! Before then,  sourdough starter was very popular in the baking industry and at your grandma's home.