Saturday may just be my favorite day of the week at the bakery, because it’s when we feature all of our sourdough breads on one day. They do not contain any commercial yeast and are leavened naturally with wild yeast. I grew the levain in 2011 using figs from my back yard. It was a fairly simple process that just took a bit of time and patience. I've nourished and used it to create every loaf of sourdough bread since.
Yeast spores, a living organism, flourish everywhere and are indigenous to the region in which they inhabit. I transferred the yeast spores from the figs by soaking them in water and then using that water to create the levain. It took a few days to create a thriving culture of spores capable of leavening, and I nurture the culture daily with water and wheat flour.
I use this culture to make our signature loaf, the Duck Island Sourdough, and our Italian Sourdough made with durum wheat. I also use it to leaven the Kalamata Olive Bread and our Apricot-Cranberry-Walnut Sourdough Bread. I've got some other ideas for its use in new products that are currently in development stage, so stay tuned.