Bake your own delicious San Francisco style sourdough bread with this starter from Cultures For Health. This sourdough starter comes with a dehydrated heirloom-style sourdough culture so you can keep making batches of tasty artisan sourdough bread indefinitely! Sourdough starters are some of the most forgiving cultures to work with perfect for beginners. It takes about a week to activate your starter and will be ready to bake just 4 hours after the final feeding. For great-tasting treats with gut-healthy probiotics Cultures For Health is here to get you started.