Under-Proofed vs Over-Proofed Sourdough: How to Finally Know the Difference

Most sourdough “failures” aren’t about your starter… your flour… or your recipe.

They’re about timing.

In this episode, we’re breaking down one of the most confusing (and frustrating) parts of sourdough baking—under-proofing vs over-proofing—so you can finally understand what your dough is actually telling you.

Because if you’ve ever pulled a flat loaf out of the oven…
 seen big holes mixed with dense sections…
 or wondered why your dough felt perfect one minute and impossible the next…

This is the episode you’ve been waiting for.

We’ll walk through:

•  What under-proofing really is (and why it creates those uneven, frustrating crumbs) 
•  What over-proofing looks and feels like (and why your dough “collapses”) 
•  How to use the poke test correctly—and what it’s actually telling you 
•  Exactly what perfectly proofed dough should feel like 
•  What to do if your dough is under-proofed (before and after baking) 
•  How to save over-proofed dough and turn it into something delicious (hello focaccia 👀) 

This isn’t about memorizing times or chasing perfection…

It’s about learning how to read your dough so your baking becomes predictable, flexible, and honestly kind of magical.

✨ READY TO TAKE IT FURTHER?

If you’re ready to stop guessing and start baking with confidence…

Inside Sourdough Made Easy, I walk you step-by-step through:

•  Understanding your starter 
•  Mastering fermentation timing 
•  Knowing exactly when your dough is ready 
•  And baking consistent, beautiful loaves in your real, everyday kitchen 

👉 To learn more, CLICK HERE.

If you love this episode, be sure to follow the podcast so you don’t miss what’s coming next—and I’ll see you in the next one ✨

Transcript

SPEAKER_00 0:00

Welcome back to the podcast. I'm Gloria, also known as the Sourdough Sorceress, and today we're talking about one of the biggest sources of frustration in sourdough baking: underproofing versus overproofing. Because here's the truth: most sourdough failures are not about your starter, they're not about your recipe, they're not even about your flour. They're about timing. And if you don't understand what underproof dough looks like or what overproof dough feels like, you're basically baking blind. So today I'm going to walk you through this in a really simple, clear way so you can start recognizing exactly what your dough is telling you and what to do about it when things don't go as planned. So let's start with underproofing. What is underproofing? Underproofing means your dough has not fermented long enough. The yeast hasn't produced enough gas, the gluten hasn't relaxed enough yet and stretched, so your dough is still tight, dense, and not ready. So here's what to look for to recognize underproofed dough. Your dough will feel tight and resistant. It springs back quickly when touched. After baking, you'll often see big random holes with dense sections, a loaf that's flat or squat, it's still slightly gummy, and the structure is uneven. There are more tunnels than balance. So how can you fix underproofed dough before baking? If you catch it in time, this is the best case scenario. Just give it more time. Let it continue bulk fermentation, keep it in a warm spot if needed, wait for it to feel lighter, softer, slightly jiggly. You haven't ruined anything, you're just early. Now, what if you already shaped it? You still have options. You can let it rest longer in the proofing basket before baking. Give it more time at room temperature if it already went into the fridge and it went in too soon. You're basically letting it finish what it started. What if you already baked it? Okay, this is where we shift mindset. You didn't fail, you just made a different kind of bread. If it's underproofed, toast it. This improves structure dramatically. Use it for grilled sandwiches or paninis, turn it into croutons or breadcrumbs, because once it's baked, you can't change the structure. But you can absolutely still enjoy it. Okay, let's talk about overproofing. What is overproofing? Overproofing happens when your dough has fermented too long. The yeast has already peaked and the structure starts to break down. Gas escapes, gluten weakens, the dough collapses. How do you recognize overproof dough? Well, here's what it looks like. The dough feels very soft, loose, and fragile, it's sticky and hard to shape, it spreads instead of holding form, and it lacks tension. After baking, you end up with a flat, wide loaf with little to no oven spring and weak structure. Can you fix overproof dough? Here's the honest answer. You can't fully reverse it, but you can pivot. So, what can you do with overproofed dough before baking? If you catch it before it completely collapses, you can try a gentle reshape, lightly reshape to build some surface tension. Don't overhandle it though, you'll knock out what structure is left, and bake it sooner rather than later. Will it be perfect? No. Will it be better? Usually yes. And you can also save it and turn it into something else. This is where the magic happens. Oberproof dough is amazing for facaccia. This is probably my favorite way to do it. You can also use it in pizza dough, flatbreads, discard style recipes. Why? Because you don't need strong structure for those. You actually want relaxed gluten, easy spread flavor from extended fermentation. So instead of fighting it, change the plan. So here's a super quick facaccha save. If your dough is overproofed, pour it into an oiled pan, a 13 by 9 pan usually, let it relax and spread, dimple it, add olive oil and seasonings on top, and bake it. And seriously, it might be one of the best things you make. So let's talk about the poke test. Because this gets talked about all the time but rarely explained in a way that actually helps. The poke test is not just about touching your dough, it's about reading. It's about reading gas development, gluten strength, and fermentation progress. The underproofed poke test, if you poke it, it springs back quickly and completely. That means tight gluten, low gas, not ready. The overproofed poke test, you poke it and it doesn't spring back at all. Or it collapses slightly. That means the structure is weak and it's past peak. A perfectly proofed poke test, you poke it, it slowly springs back, but not all the way. It leaves a slight dent. That's your green light. So what does perfectly proofed dough feel like? This is where real confidence comes from. Perfect dough feels light, airy, soft but structured, slightly jiggly, and it holds shape. It's balanced, it's alive. The poke test is a tool, not the whole answer. You want to also look at the volume, how much has your dough increased in volume, what's the feel of it, how long have you left it out, bulk fermenting, and what about the temperature in your room? All of those things together create your perfect dough. So here's a simple recap. Your dough, if your dough springs back fast when you poke it, it's underproofed, it needs more time. If it doesn't spring back at all, it's overproofed, so you want to pivot and turn your dough into something else. If it has a slow spring back when you poke it, it's perfect and it's going to be great for you to bake. So here's the big reframe. This isn't about getting it perfect every time. It's about understanding what's happening and knowing what to do next. Because now, underproofed, give it more time. Overproofed, change the plan. Perfect, bake with confidence. And this is where sourdough shifts from frustrating to flexible to honestly kind of magical, because you no longer stuck with something when something goes wrong. You know how to adjust, you know how to recover, you know how to create something great either way. And if you want to take this even further, to where your dough feels predictable, your timing makes sense, and your loaves become consistent, that's exactly what I teach inside my Sourdough Made Easy online class. But for now, trust what you're seeing, trust what you're feeling, and remember your dough is never the problem. It's just giving you information. And now you know how to read it.