How to Store Sourdough Starter Long Term (Years)

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Ingredients

  • From Food 52

Preparation

Step 1

Drying out your starter accomplishes the same thing as freezing, except without the worry about a random defrost or freezer burn. Take whatever is left of your starter after making bread. Spread it into a thin layer on a parchment-lined baking sheet. Let fully dry over the course of a few days. Once the starter is pale and hard as a rock, peel it away from the parchment and break by hand into small, irregular chips. Store in any way that will keep the pieces dry—I prefer a regular pint mason jar, but a strong plastic bag or container would do. When you want your starter to arise from the dead, add an ounce (about 1/3 cup) of the chips to two ounces (1/4 cup) of warm water. Stir and let sit for about a day to absorb the water. Then feed as you would before, and feel free to rename your starter “Jesus.”

But store for how long? The jury’s still out on that one. The King Arthur Flour blog, Flourish, is one of the few authorities to acknowledge this method, and their guess is years. Meanwhile, The King Arthur Flour Baker’s Companion doesn’t mention any method for long-term storage. But if dried yogurt cultures can stay alive indefinitely, it’s safe to assume that’s also the case for sourdough cultures. After surviving for six months dead as a doornail, my own starter came back to life as good as new.