Dry sourdough starter is created by dehydrating a portion of an active, healthy sourdough starter. My dehydration method preserves the beneficial lactic acid bacteria and wild natural 'yeasts' that are living in the starter. These ingredients are responsible for making a sourdough starter bubble, and sourdough bread rise. The dry starter is still very much alive. It is simply in a dormant state and needs to be reactivated. That is where you come in. 
Using a dry sourdough starter is a great way to kick-start your sourdough baking journey. By using a dry sourdough starter, you’re working with a healthy established culture from the get-go, and this is a much easier & quicker way to create your own long-lasting starter than starting it from scratch.
All you'll need to revive your starter is some bread flour, warm water, and a kitchen scale (you'll need this for baking forever so invest in one straight away).
My starter is fed twice per week with nourishing organic & biodynamic flour from Shipton Mill. Every Floaty Goat starter comes with a comprehensive guide to baking your first loaf of sourdough at home, as well as a few of my favorite sourdough recipes.