Sourdough Starter Troubleshooting

My Sourdough Starter Refuses to Rise
What Is Going On?! 😂

You fed it. You marked the jar. You waited patiently. And your starter has apparently decided that gravity is a perfectly acceptable lifestyle.

You feed your sourdough starter.

You scrape down the sides.

You put a rubber band around the jar to mark the starting level.

Then you wait.

⏰👀🫙

One hour.

Two hours.

Three hours.

You come back later expecting a beautiful rise.

Instead...

Your starter has chosen violence. 😂

But before you declare your sourdough starter officially dead and start writing its obituary, let's figure out what's actually happening.

THE SOURDOUGH NEGOTIATION

Why Won't My Sourdough Starter Rise?

A starter that isn't rising may be struggling with one or more parts of its fermentation environment.

Temperature, flour, feeding ratio, hydration, feeding schedule, starter strength, and fermentation timing can all affect how much rise you see.

And sometimes the starter actually is fermenting—you simply aren't seeing the rise you expected.

First, Let's Define "Not Rising"

Before troubleshooting, it's important to know exactly what you're seeing.

1. Your Kitchen Might Be Too Cool

Temperature has a major influence on fermentation.

A cooler environment can slow the activity of your starter, meaning it may take considerably longer to produce the rise you're expecting.

If your starter eventually becomes active but takes a very long time to get there, temperature is one of the first things worth examining.

2. Your Feeding Ratio May Be Changing the Timeline

The amount of starter, flour, and water you use affects how quickly fermentation progresses.

A larger feeding can take longer to ferment, while a smaller feeding can move through its available food more quickly.

This is one reason you shouldn't automatically compare your starter's timing to someone else's online.

3. Your Flour Can Affect Starter Activity

Flour is more than something you add to make the starter thicker.

Different flours have different characteristics, and changing flour can change how your starter behaves.

If your starter suddenly began behaving differently after you changed flour, that's worth paying attention to.

Your starter noticed the flour change. 😂

4. Your Starter's Consistency Can Change What You See

Hydration affects the texture and structure of your starter.

A looser starter may spread outward instead of producing the dramatic vertical rise you were expecting.

That doesn't necessarily mean fermentation isn't happening.

5. You Might Be Checking at the Wrong Time

Here's a frustrating possibility:

Your starter rose while you weren't looking. 😂

Starter doesn't rise according to your schedule. It follows its fermentation cycle.

If it rises and then falls before you check the jar, you may miss the peak entirely.

6. Your Starter May Need More Consistent Feeding

A starter needs regular access to fresh flour and water to maintain a healthy fermentation cycle.

If feeding has become inconsistent, your starter may become sluggish.

And yes, your starter remembers when you forgot about it.

7. Your Starter May Simply Be Weak

A starter that has been neglected, recently established, heavily diluted, or otherwise stressed may need time and consistent care before it develops strong, predictable activity.

Don't expect a struggling starter to suddenly behave like a culture that has been maintained consistently for years.

Sometimes the answer is patience, consistency, and giving the culture time to regain its rhythm.

8. Look Beyond the Height of the Starter

Rise is useful information—but it isn't the only information your starter can give you.

Look for other signs of fermentation too.

• 🫧 Bubbles throughout the starter
• 👃 A fermented aroma
• 📈 Changes in volume over time
• 🥣 Changes in texture
• ⏰ A recognizable feeding and fermentation cycle

Don't judge the entire starter by one rubber band. 😂

Your Sourdough Starter Troubleshooting Checklist

Before you panic, work through these questions.

Don't Give Up on the Jar

A starter that refuses to rise isn't automatically a dead starter.

Sometimes it needs a better environment. Sometimes it needs consistency. Sometimes you simply haven't caught it at the right point in its fermentation cycle.

Still Can't Figure Out Your Starter?

Starter problems rarely happen in isolation. If your starter isn't rising, isn't behaving normally, or you're dealing with several issues at once, our Sourdough Starter Troubleshooting guide can help you work through what's happening.

Continue Your Sourdough Journey

The more you understand your starter, the easier sourdough becomes. Learn how starter works, how to feed it, how to recognize when it's ready, and how to troubleshoot the strange things that sometimes happen in the jar.

READY TO BAKE BETTER SOURDOUGH?

Bring Your Kitchen to Life with Squirrelly Girl Sourdough Starter

Whether you're baking your first loaf or your hundredth, Squirrelly Girl Sourdough Starter is ready to become part of your baking routine. Start with a reliable live starter and get back to making delicious sourdough.

Because sourdough should be fun—not a staring contest with a jar. 😂❤️

Feed it. Watch it. Learn it.

And maybe stop yelling "RISE!" at the jar. It isn't listening. 😂