Why Your Sourdough Isn’t Rising—and How to Fix It
Apr 18 | Written By Sabrina Huizar
You followed the recipe. You kneaded (or didn’t). You waited. You hoped. And now you’re staring at a loaf that’s flatter than a pancake. So… what went wrong?
First off: you’re not alone. Every sourdough baker—every single one—has faced a sad, dense loaf at some point. The good news? There’s always a reason, and there’s always a fix.
Let’s break down the most common culprits behind sluggish (or nonexistent) sourdough rise and how to get that beautiful lift next time.
1. Your Starter Isn’t Active Enough
Symptom: The dough barely rises, even after hours.
Fix: Check your starter’s activity. A healthy starter should double in size within 4–6 hours of feeding. If it’s sluggish, feed it a few times at room temperature before baking.
Bonus tip: Try feeding it with whole wheat or rye to boost activity. And don’t forget to discard. Overfed, underfed, or neglected starters can get lazy.
2. Your Dough’s Too Cold
Symptom: The dough is rising, but so slowly.
Fix: Sourdough loves warmth. If your kitchen is chilly (below 70°F / 21°C), the rise will slow way down. Try putting the dough in a turned-off oven with the light on, or near a warm appliance. Or embrace the slow rise and let it go overnight.
3. You Didn’t Ferment Long Enough (or You Overdid It)
Symptom: The dough feels tight and underproofed—or collapsed and sticky.
Fix: Timing matters. Underproofed dough doesn’t have enough gas to rise well; overproofed dough can deflate and turn gummy. The sweet spot is when the dough is slightly domed, jiggly, and puffed—usually 4–6 hours at warm room temp, or longer if it’s cooler.
Pro move: Use the “poke test”—gently press a floured finger into the dough. If the dent springs back slowly, it’s ready. If it springs back fast, it needs more time. If it doesn’t spring back at all—it may be overproofed.
4. Your Flour Might Be Too Weak
Symptom: The dough tears easily, or can’t hold shape.
Fix: Try using bread flour instead of all-purpose. Bread flour has more protein (gluten), which helps trap gas and gives better structure. If you’re using whole wheat or rye, blend it with a higher-protein flour for strength.
5. You Didn’t Develop the Gluten Enough
Symptom: Flat loaf with no oven spring.
Fix: Gluten gives sourdough its structure. Whether you knead, stretch and fold, or slap and fold, you need some method to build strength. Aim for a dough that feels elastic and smooth before bulk fermentation.
Shortcut: Even just a few stretch-and-fold sessions over the first hour can make a huge difference.
6. Your Shaping Needs Work
Symptom: Dough spreads sideways instead of rising up.
Fix: Good shaping builds surface tension, which helps the loaf hold its shape. Try practicing the “boule” or “batard” shape, and don’t be afraid to tighten the dough a bit more than feels natural.
Also: Let shaped dough rest seam-side up in the banneton or bowl—it’ll flip seam-side down for baking.
7. Your Oven Setup Is Letting You Down
Symptom: The dough looked promising—but flattens in the oven.
Fix: You need steam and high heat for a good rise. Bake in a preheated Dutch oven, or use a baking stone with a tray of hot water for steam. Don’t skip the preheat—450°F (230°C) minimum.
Bonus: Did You Use Salt?
It sounds obvious, but salt strengthens gluten and helps control fermentation. Forgetting salt can lead to a sticky, unruly dough that refuses to rise properly.
The Takeaway
Flat sourdough isn’t a failure, it’s a clue. Each loaf teaches you something, even the dense ones. And once you get that lift, that crackle, that open crumb? You’ll know it was worth every flop along the way.
Stay tuned—and stay cultured.
—Sabrina
Our San Francisco “Fisherman’s Wharf” Sourdough Starter captures the unmistakable character of the famous sourdough breads that have made San Francisco baking legendary. Known for its lively fermentation and classic tangy flavor, this starter produces loaves with the signature taste many people associate with the city’s historic bakeries.
San Francisco sourdough has long been celebrated for its unique flavor profile, shaped by the coastal climate and traditional fermentation methods used by generations of bakers. This starter brings that same spirit into your kitchen, delivering the bold, aromatic character that sourdough lovers recognize immediately.
The finished breads develop a beautifully balanced tang, with a chewy yet tender crumb and a crisp crust that makes every slice memorable. The flavor is vibrant and satisfying—perfect for rustic loaves, sandwich bread, and the classic sourdough boules that feel right at home on a soup-and-salad table.
Each bake evokes the experience of strolling along Fisherman’s Wharf, where the aroma of fresh sourdough fills the air and warm loaves are enjoyed with butter, chowder, or simply on their own.
Simple, lively, and full of West Coast character, this starter makes it easy to bring the spirit of San Francisco sourdough baking into your kitchen.
Expect:
• Classic San Francisco-style sourdough tang
• Perfect for boules, sandwich loaves, and artisan breads
Bold, nostalgic, and wonderfully flavorful, this starter produces sourdough breads that capture the iconic taste of San Francisco baking.
Our French Parisian Sourdough Starter is a true gem for any baker, originating from France and rooted in the rich bread traditions of Parisian bakeries. This lively culture produces beautifully balanced loaves with a mild yet distinct tartness and a delicate sweetness that lingers pleasantly on the finish.
During fermentation, the starter develops a wonderfully aromatic character that is perfect for classic French breads. It performs especially well in baguettes, country loaves, and rustic hearth breads, helping create that signature crisp crust and tender, flavorful crumb that French breads are known for.
The flavor profile is refined and balanced, allowing the natural flavor of the grain to shine while delivering just enough tang to give the bread depth and character. The result is a sourdough that feels elegant, traditional, and incredibly satisfying.
Reliable, lively, and full of heritage, this starter brings authentic French sourdough baking straight into your kitchen.
Expect:
• Mild yet distinct sourdough tang
• Delicate sweet finish
• Balanced flavor without harsh acidity
• Lively fermentation and dependable rise
• Excellent for baguettes and classic French breads
• Crisp crust with a tender, flavorful crumb
Elegant, aromatic, and beautifully balanced, this Parisian starter helps create sourdough breads worthy of a traditional French bakery.
Our Classic Gluten-Free Sourdough Starter is a wonderfully adaptable culture designed for bakers exploring the world of gluten-free fermentation. Through extensive experimentation, we have successfully cultured this starter with a wide variety of gluten-free flours, all producing lively fermentation and excellent baking results.
Because it works so well with different gluten-free grains, this starter acts as a true blank canvas for your creativity. Whether you prefer rice flour, sorghum, millet, buckwheat, or other gluten-free blends, the culture readily adapts and thrives, allowing you to experiment and develop your own unique sourdough style.
The fermentation brings depth and complexity to gluten-free baking, adding a pleasant tang and improved texture to breads, pancakes, crackers, and other baked goods.
Flexible, reliable, and full of potential, this starter opens the door to creative gluten-free sourdough baking.
Expect:
• Gluten-free sourdough culture
• Works well with many different gluten-free flours
• Lively fermentation and dependable activity
• Pleasant sourdough tang and added flavor complexity
• A versatile starter perfect for experimentation
• Ideal for breads, pancakes, crackers, and creative bakes
Adaptable, creative, and wonderfully reliable, this gluten-free starter gives you the freedom to explore sourdough baking without gluten.