Indulge in the rich heritage and authentic taste of America's beloved bread with our 100+ year old Dehydrated Sourdough Starter. Cultivated in the heart of San Francisco since 1873, this starter is a testament to traditional baking and a staple for any sourdough enthusiast. Each 15-gram bag contains a potent blend of flour and wild yeast, ready to awaken your baking creativity. Proudly sourced and manufactured in the United States, our San Francisco Sour embodies a regional cuisine that's synonymous with quality and taste. It adheres to a myriad of food specifications, including being GMO-free, organic, and free from artificial colors, flavors, and preservatives. With a serving size of less than 50 calories, it's a versatile ingredient for those who value low-sodium, low-sugar, and egg-free options.