Before you watch this video on sourdough starter maintenance, please know that it really isn’t a big deal to keep your sourdough culture alive and healthy. A good starter is naturally very hearty and robust. If I were as strong as my starter is, I’d be competing in Iron Man competitions. At a minimum, all you have to do is throw some flour and water in once in a while to keep it alive during periods when you’re baking infrequently. To keep it near optimum health, feed it once a week or so and keep it refrigerated.
If you’re baking regularly, say weekly or bi-weekly, it’s easy enough just to feed it after using the amount called for in your recipe before returning it to your refrigerator. If you really want to be sure your starter is in optimum shape, feed it once or twice the day before baking or the two days prior to baking day. In addition, here are a few points that are worth noting…
- When you feed your starter, feed it with approximately equal weights of flour and water. That equates to about 2/3 to 3/4 cup of water for every cup of flour.
- As a general rule of thumb, the amount you feed your sourdough starter depends on how much of it you have to start with. When practical, you want to approximately double the amount of starter you have each time you feed it. However, if you already have a couple cups of starter on hand and typically only use a cup of starter in your recipe, it doesn’t make sense to have to double the existing two cups of starter. In this case just dispose of a cup or more of the starter and then double what remains.
- If it’s been a long time since you’ve fed your starter and you don’t plan on baking for a while, don’t feel like you have to go through a big rigamarole to keep it happy, just stir in a 1/2 cup of flour and about the same amount of water and forget about it. That will at least buy you a few more weeks before you have to worry about it again.
- If you really don’t think you’re going to use your starter at all for a very long time, (some people don’t bake during the summer months, for example), you could dry some starter and freeze it. It will store this way indefinitely. Then revive it in the fall. See the videos on drying starter and reviving dried starter.
- If you need a whole wheat or rye starter, it’s easy to convert your white flour starter by just a few successive feedings with the flour you want. You may have to adjust the water as some flours are thirstier than others.
- Be sure to store your starter in a container that’s not air tight. This comment from Madelyn dramatically (and humorously) illustrates why.
I’m really belaboring this subject. Once you’ve played around with sourdough starters for a while and baked some with it, you’ll know all you need to know and develop a sense for what works best. If your bread is not rising as much as you think it should (you’re not getting the desired oven spring) then try what I said about feeding your starter a couple of times in the 12-24 hours before starting your recipe.
As with anything on this web site, if you have any questions or comments about anything please ask in the space below.
Jan 13, 2011 Update: In this video I mention a favorite recipe of mine that calls for 2 cups of sourdough starter. It’s been so long since I shot the video (and many favorite recipes ago), that I’ve forgotten exactly which recipe I was referring to. I do know it was in Ed Wood’s book, Classic Sourdoughs. He has many recipes in there that call for 2 cups of starter.