The Ultimate Sourdough Feeding Schedule: Daily, Weekly, and Everything In Between

The most common question I get about sourdough starters, after "how do I make one," is "how often do I need to feed it?" The answer that most guides give — once a day, every day, forever — is technically correct but practically unhelpful. It creates the impression that maintaining a sourdough starter is like owning a needy pet that will die if you skip a day. In reality, starters are remarkably resilient, and your feeding schedule should match your baking habits, not some idealized routine from a baking book.

I have been maintaining the same starter for over four years. During that time, my feeding schedule has ranged from twice daily to once every three weeks, depending on how often I was baking. The starter has survived all of it without complaint. Here is everything I have learned about finding the right feeding rhythm.

Understanding What Feeding Does

Feeding your starter accomplishes two things. First, it provides fresh food (flour) for the yeast and bacteria. Second, it dilutes the acids that have accumulated since the last feed, resetting the pH to a level where the organisms can thrive. A starter that is not fed eventually runs out of food and becomes extremely acidic, which slows down microbial activity. The organisms do not die (they are remarkably tough), but they become dormant.

This is important context because it means a missed feeding is not a disaster. It is an inconvenience that requires a recovery period. Your starter can handle irregular schedules, vacations, and periods of neglect. What it cannot handle is sustained neglect over many months combined with unfavorable storage conditions. But that is a very high bar to reach.

Schedule 1: Daily Counter Maintenance (For Frequent Bakers)

If you bake three or more times per week, keeping your starter on the counter with daily feeding makes the most sense. The starter is always ready to use at peak activity, and you save the time of having to revive it from the fridge before each bake.

The routine: Once every 24 hours, discard all but 50g of starter. Add 50g flour and 50g water (1:1:1 ratio). Stir well, cover loosely, and leave at room temperature. Use it to bake when it has doubled and is bubbly (usually 4-8 hours after feeding, depending on kitchen temperature).

The main downside of counter maintenance is the daily commitment and the accumulating discard. At one feeding per day, you discard roughly 100g of flour-water mixture daily, which is about 50g of flour. Over a week, that is 350g of flour down the drain unless you use it. My discard recipe collection is designed to solve exactly this problem.

Schedule 2: Fridge Maintenance (For Weekly Bakers)

If you bake once or twice a week, the refrigerator is your starter's best friend. Cold temperatures slow fermentation dramatically, meaning your starter needs feeding only once per week instead of once per day. This is the schedule I use most of the time, and it works beautifully.

The routine: Feed the starter (1:1:1 ratio), let it sit at room temperature for one to two hours to get fermentation started, then place it in the fridge with a loose lid. It will slowly ferment over the week, but the cold keeps it from becoming overly acidic. When you want to bake, take it out the night before, let it warm up for an hour, then feed it. By morning, it should be at peak activity and ready to use.

I have a detailed guide on fridge storage that covers the nuances, but the key principle is simple: cold slows everything down. A starter in the fridge is essentially in suspended animation, requiring minimal attention. I have successfully stored a starter in the fridge for up to three weeks without feeding, and it revived within two feedings. I would not push it much beyond three weeks, but the point is that weekly feeding is conservative and reliable.

Schedule 3: Twice-Daily Feeding (For Peak Performance)

If you are preparing for a big bake, testing a new recipe, or want your starter at absolute peak performance, feeding twice daily for two to three days before baking produces the most vigorous, active starter possible. This is overkill for routine baking but useful for occasions where you want the best possible result.

The routine: Feed at a 1:2:2 or 1:1:1 ratio every twelve hours. The starter should be doubling between feedings. After two to three days of this schedule, the yeast population is at maximum density and the starter peaks predictably. Use it right at peak (doubled, bubbly, just starting to dome on top) for maximum leavening power.

Schedule 4: Minimal Maintenance (For Occasional Bakers)

If you bake once a month or less, maintaining a daily or even weekly feeding schedule is wasteful. Instead, keep a small amount of starter in the fridge and revive it when you want to bake. Between bakes, feed it once every two to three weeks with minimal amounts.

The routine: Keep about 30g of starter in a small jar in the fridge. Every two to three weeks, discard half and add 15g flour and 15g water. When you want to bake, take it out three days before you plan to mix dough. Feed it twice daily for those three days to bring it back to full strength. By day three, it should be doubling reliably and ready to use.

As a backup for even longer gaps, consider drying some of your starter. Dried starter is shelf-stable for months (possibly years) and can be rehydrated and revived when you are ready to bake again. I keep a small bag of dried starter in my pantry as insurance against the extremely unlikely scenario that my active starter fails completely.

Choosing Your Flour for Feeding

The flour you use for feeding affects your starter's behavior. All-purpose flour produces a milder, less vigorous starter. Bread flour produces a stronger one. Whole wheat and rye flour produce the most vigorous starters because the bran and germ provide extra nutrients for the microorganisms.

I feed my starter a 50/50 blend of bread flour and whole wheat flour. This gives me a vigorous, reliably active starter that is strong enough for weekly fridge maintenance but not so aggressive that it outpaces my schedule. If your starter seems sluggish, switching to a whole wheat feed for a few days often provides the boost it needs.

The Most Important Rule

Consistency matters more than the specific schedule you choose. A starter that gets fed reliably once a week adapts to that rhythm. A starter that gets fed daily for a week, then ignored for two weeks, then fed twice daily develops an irregular activity pattern that makes baking timing unpredictable.

Pick the schedule that matches your actual life and baking habits. Stick with it for at least a month so your starter adapts. Then adjust if needed. The starter will tell you if something is wrong — sluggish activity, excessive hooch, or off smells are all signals that the current schedule is not meeting its needs. But in my experience, any schedule from daily to every-two-weeks works fine as long as you are consistent about it.

Your starter is tougher than you think. It has survived millennia of human neglect, travel, and environmental change. It will survive your vacation, your busy week at work, and your occasional forgetfulness. Feed it when you can, bake when you want, and stop worrying about being the perfect starter parent. The bar for keeping a sourdough starter alive is refreshingly low. The bar for keeping it performing at its best is just a little higher: consistency, reasonable frequency, and good flour. That is all it takes.