
So, you’ve brought a sourdough starter into your life. Congratulations! You’re now the proud parent of a bubbly jar of wild yeast and bacteria. Some days, you’ll look at it with pride as it bubbles happily on your counter. Other days, you might peek at it with a little bit of panic, wondering, “Is it supposed to smell like that?” or “Why isn’t it doing anything?”
Trust me, you are not alone. Every sourdough baker has been there. Maintaining a starter is like having a very low-maintenance pet. It has its own personality, its own moods, and its own weird quirks. This guide from Our Food Rhythms is your friendly chat with a fellow baker, here to demystify the process and help you keep your starter happy, healthy, and ready for baking.
Keeping Your Starter Happy: Maintenance Routines

First things first, let’s talk about feeding. Your starter is a living colony of yeast and bacteria, and just like any living thing, it needs to eat. Its food is simple: flour and water.
Daily Maintenance (For Counter Storage)
If you bake frequently (several times a week), keeping your starter on the counter is the way to go.
- Feeding Schedule: A starter living at room temperature needs to be fed once or twice a day. A 12-hour schedule (say, 8 AM and 8 PM) is great, but a 24-hour schedule works too if your kitchen isn't too warm.
- The Feeding Process:
- Discard: Remove most of your starter, leaving just a small amount in the jar (about 1-2 tablespoons). Yes, it feels weird to throw most of it away, but this step is crucial for keeping it healthy and manageable.
- Feed: Add equal parts fresh flour and water. A common ratio is 1 part starter, 2 parts flour, and 2 parts water by weight (e.g., 25g starter, 50g flour, 50g water).
- Mix: Stir everything together until no dry flour remains. Cover the jar loosely and let it sit on your counter.
Weekly Maintenance (For Fridge Storage)
If you’re a more casual baker (once a week or less), the refrigerator is your best friend. The cold temperature slows down fermentation, so you don’t have to feed it as often.
- Feeding Schedule: Feed your starter once a week.
- The Feeding Process:
- Take your starter out of the fridge.
- Follow the same discard and feed process as the daily routine.
- Let it sit on the counter for a few hours to get a little active before popping it back into the fridge.
Common Problems and How to Fix Them

Your starter will communicate with you. Sometimes, its messages are a little alarming. Here’s a guide to what it might be trying to tell you.
"My starter has a dark liquid on top!"
That liquid is called hooch, and it’s a sign your starter is hungry! It’s simply alcohol, a byproduct of fermentation.
- What to do: Just stir the hooch right back in before you discard and feed, or you can pour it off for a slightly less sour flavor. It’s not a sign of a problem, just a clear signal that it’s time to eat.
"My starter smells weird."
A healthy, active starter should smell pleasantly tangy, yeasty, and slightly sour. Sometimes, it can go through funky phases.
- Vinegar or Nail Polish Remover Smell: This is a strong, acidic smell that means your starter is very hungry and producing a lot of acid. It’s just an exaggerated version of hooch. Regular feedings will fix this.
- Musty or "Off" Smell: If it smells truly bad, like moldy cheese or old socks, it might be a sign of contamination. Give it a few consistent feedings to see if the smell improves.
"I think there's mold."
Mold is the one thing you can’t really fix. If you see fuzzy spots that are pink, orange, green, or black, it’s time to say goodbye.
- What to do: Unfortunately, you have to throw it out and start over. Mold spores can penetrate the entire starter, so scooping it off isn’t safe. To prevent mold, always use clean jars and utensils.
"My starter is sluggish and not bubbling."
This is a super common issue, especially in colder weather.
- What to do:
- Warm it up: Yeast loves warmth. Find a cozy spot for your starter, like near a warm oven or in a proofing box.
- Feed it consistently: Give it a few regular, 12-hour feedings to boost its activity.
- Try a different flour: Sometimes, a little bit of whole wheat or rye flour can give it a nutrient boost and kickstart activity.
How to Revive a Neglected Starter

Did you forget about your starter in the back of the fridge for a month (or three)? Don’t panic! It’s probably salvageable.
- Scrape off the top layer: Take your starter out of the fridge. Scrape off and discard any dark, dried-out top layer.
- Find the good stuff: Scoop out about a tablespoon of the healthier-looking starter from the bottom.
- Feed and wait: Place it in a clean jar and feed it using your normal ratio.
- Be patient: It might take a few days of consistent, twice-daily feedings at room temperature, but you should see signs of life return.
Sourdough Starter FAQ

- What kind of jar should I use? A glass jar is best because you can easily see the activity. A Mason jar or a Weck jar works perfectly.
- How should I cover my jar? You want to cover it loosely so gas can escape. You can use the lid it came with (just don't screw it on tight), a coffee filter secured with a rubber band, or a small cloth.
- Do I have to discard? Yes! If you don't discard, you'll end up with a massive amount of starter that requires huge amounts of flour to feed. Discarding keeps your starter vigorous and your flour bill down.
- What can I do with the discard? Don't throw it away! Sourdough discard is a fantastic ingredient for pancakes, waffles, crackers, and more. Check out some of our discard recipes!
Your Sourdough Journey
Remember, your sourdough starter is resilient. Don’t be afraid to experiment and get to know its unique food rhythm. The more you work with it, the more intuitive the process will become. Soon, you’ll be able to tell what it needs with just a quick glance and a sniff.
- What has been your biggest sourdough starter challenge or victory? Share your stories and questions in the comments below. We’re all in this bubbly journey together

