1847 Oregon trail dehydrated sourdough starter. Instructions will be provided. Basically add water and flour to activate the dehydrated starter. Baking your own sourdough bread is much healthier and the taste is superb. A fresh loaf of bread and the aroma of homemade bread is a joy in any kitchen. You can make basic sourdough loaf, foccacia, pizza dough, naan bread, sandwich bread and much more. This listing is for 10 grams of dehydrated sourdough starter. It will be packed in a sandwich bag and mailed out in a standard size envelope.