The product is a 15-gram bag of dehydrated sourdough starter with a sour taste, aged for over 125 years in San Francisco. It is a yeast and baking agent product, suitable for those with wheat allergies. This organic, dairy-free, and nut-free starter is dye-free, GMO-free, and does not contain artificial coloring, flavoring, or preservatives. With a low-fat, low-sugar, and low-sodium content, this sourdough starter is perfect for homemade baked goods and has a long expiration date of 01/2030.