Why sourdough starter

But sourdough is interesting to more than just bakers. Sourdough and other food fermentations such as those that give us cheese, sauerkraut and kimchi provide relatively simple, easy-to-handle model ecosystems for studying microbial ecology more generally. Sourdough offers an additional benefit, especially relevant in pandemic times when the microbial world seems so full of threat.

This article originally appeared in Knowable Magazine , an independent journalistic endeavor from Annual Reviews. Sign up for the newsletter. Anne Madden and her colleagues conducted the study, not Erin McKenney and her colleagues, as was originally stated. Already a subscriber? Sign in. Thanks for reading Scientific American.

Create your free account or Sign in to continue. See Subscription Options. Go Paperless with Digital. Care and feeding Not everyone agrees that sourdough microbial communities are so variable. Get smart. Sign up for our email newsletter. Sign Up. Support science journalism. A similar discovery was made in other regions that relied on grains such as wheat, barley and rye. Over time, certain starters were prized for qualities such as rise time and flavor.

Families passed starters down to the next generation. Breads became part of the local culture, from Egyptian pita, to German pumpernickel, and Russian black bread. While sourdough starters and bread made from starters have been around for thousands of years, the term "sourdough" has a pretty short history. Many gold miners obtained provisions in the booming coastal town of San Francisco before heading up into the mountains, and a good bread starter would have been a vital necessity.

Starters from that area produced bread with a unique and particularly sour tang. Thus the starters and bread from that area became known as "sourdough. Commercial baking yeast is a single strain of Saccharomyces cerrivasae. Yeasts from this family are very specialized. Strains are selected for particular end uses. Sourdough Starter Reviews. Rate It! Add A Review Now! Comment on this. Follow Us! Beef Cooking Times. Chicken Cooking Times.

Cooking Temperature and Time. Food Substitutions. Ham Cooking Times. The method you'll read here for making sourdough starter isn't an exact match for the one you read on another site, or in a cookbook, or in your great-grandma's diary. But it's the tried-and-true method we use for making starter here at King Arthur, and we feel you'll have success with it.

Our Sourdough Baking Guide offers all the tips and advice you new as well as veteran sourdough bakers need for your guaranteed sourdough success. Day 1: Combine the pumpernickel or whole wheat flour with the cool water in a non-reactive container. Glass, crockery, stainless steel, or food-grade plastic all work fine for this. Make sure the container is large enough to hold your starter as it grows; we recommend at least 1-quart capacity.

Stir everything together thoroughly; make sure there's no dry flour anywhere. See "tips," below, for advice about growing starters in a cold house.

Day 2: You may see no activity at all in the first 24 hours, or you may see a bit of growth or bubbling. Day 3: By the third day, you'll likely see some activity — bubbling; a fresh, fruity aroma, and some evidence of expansion. It's now time to begin two feedings daily, as evenly spaced as your schedule allows. Discard any remaining starter. Mix the starter, flour, and water, cover, and let the mixture rest at room temperature for approximately 12 hours before repeating.

Day 4: Weigh out grams starter, and discard any remaining starter. Repeat step 6. Day 5: Weigh out grams starter, and discard any remaining starter. By the end of day 5, the starter should have at least doubled in volume. You'll see lots of bubbles; there may be some little "rivulets" on the surface, full of finer bubbles.