I keep seeing sourdough starters all over socials. How can sourdough starters be many years old. Don’t you need to use the starter to make the bread? ELI5!
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One of the important components of sourdough bread is the yeast which gives it a distinctive flavor and helps the bread to rise. The starter is basically a sample of the yeast used for the bread. You can take a small piece of the starter and move it to a new jar filled with food for the yeast to live on, and now that new jar will have the same blend and type of yeast. You can repeat this process as many times as you like, keeping the same sample of yeast alive for potentially many years just by giving it new food and a clean jar every so often.
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