Your starter’s perfect setup Take the guesswork out of sourdough. The Sourdough Home and Starter Jar is the perfect pair to keep your starter active, healthy, and always ready to bake. The Sourdough Home maintains the temperature you choose - warm or cool - so your starter has a steady environment to thrive. That means fewer feedings, less discard, and no surprises. The Sourdough Starter Jar makes feeding, storing, and managing easy, and together they make sourdough care effortless. Please note: While the Sourdough Home normally ships with 2 shelves, this bundle includes only 1 bottom shelf so the larger starter jar fits properly.