Sourdough Bread Proofing: Tools to make the process easier!

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(Last Updated On: August 26, 2023)

Is sourdough bread making as confusing to you as it was to me? It can feel like you’re never done learning and experimenting because…well…you aren’t.

So let’s talk about Proofing. The unicorn of sourdough. (to me, at least)

Sourdough proofing is the process of allowing the dough to ferment and rise before baking. This step is crucial in developing the flavor, texture and appearance of your sourdough bread. The duration, temperature, and humidity all play vital roles during this step.

Does it feel like you’re babysitting your bread yet?

There are a couple tools that can help take the stress out of proofing.

A sourdough bread proofer can simplify the process and provide consistent results. It can also help maintain the ideal, stable environment for your dough to ferment, without you having to schedule your day around baking.

Check out these Tools for
easier Sourdough Bread Proofing

Brod & Taylor Folding Proofer & Slow Cooker

  • Easy Instructions
  • Consistent
  • Stellar Reviews

Cozy Bread Warming Mat Thermostat Controlled

  • Temperature controlled
  • Portable
  • Under $50

JUMP to our in-depth description

What is Sourdough Bread Proofing?

The Science Behind Proofing and Fermentation

Sourdough bread proofing is a crucial step in the bread-making process where the dough undergoes fermentation, allowing it to rise and develop its unique flavors.

During this stage, natural yeasts and bacteria in the starter consume sugars present in the dough, producing carbon dioxide gas and organic acids. The trapped gas causes the dough to expand, while the acids contribute to the sourdough’s characteristic tang.

Step by Step Process of Sourdough Proofing

  1. Bulk fermentation: After mixing the starter, flour, and water, the dough undergoes its first proofing, known as bulk fermentation. During this stage, the dough should double in size, and you’ll need to fold the dough periodically to help with gluten development and even fermentation.
  2. Shaping: Once the bulk fermentation is complete, gently shape the dough into the desired form while being careful not to deflate it too much.
  3. Final proofing or retarding: Next, place the shaped dough in a proofing basket or a similar container and let it rise again. You can either proof it at room temperature for a few hours or use the retarding technique by letting it rise slowly in the refrigerator overnight.

Importance of Temperature in Sourdough Proofing

Temperature plays a critical role in proofing sourdough bread, as it affects the activity of yeasts and bacteria present in the dough.

The optimal temperature range for sourdough proofing is between 75F – 82F (25C – 28C), which allows the yeasts to work well and produce consistent results. Maintaining humidity levels of 60 – 80% is also essential for effective dough proofing.

Everyone’s environment is different, so don’t let these specific numbers make you question your techniques. Do what works for you!

Best Practices to Improve Efficiency in Proofing

To optimize your sourdough proofing, consider the following tips:

  • Use a proofing box like the Brod and Taylor Dough Proofer to maintain consistent temperature and humidity levels.
  • Ensure your starter is healthy and well-fed for peak yeast performance.
  • Experiment with adjusting the hydration levels in your dough for optimal rise and crumb structure.
  • Monitor the dough’s progress during fermentation to avoid over-proofing or under-proofing.

Common Problems and Solutions of Sourdough Proofing

  • Dough not rising enough: This issue might result from an insufficient amount of yeast, an unhealthy starter, or lack of sugar for the yeast to consume. You can try adjusting the starter feeding schedule, adding more flour, or replacing your starter with a fresh one.
  • Over-proofing: If the dough rises too much, it may become weak and deflate during baking or have a sour, off taste. To prevent this, control the proofing temperature or reduce the proofing time to avoid excessive fermentation.
  • Sticky and difficult-to-handle dough: This could be caused by excessive hydration levels in the dough, or too much flour being absorbed during fermentation. Adjust your dough’s hydration by adding more flour or using a high protein flour that can better handle added moisture.

Brod & Taylor Folding Proofer
& Slow Cooker (Proofer)

Brod & Taylor Folding Proofer & Slow Cooker (Proofer)


  • Precise temperature and humidity control
  • Works as a slow cooker!
  • Radiant heat cooks evently
  • No more babysitting and worrying about temperatures!


  • Not dishwasher safe, but still easy to clean
  • Pricey

The Brod & Taylor Folding Proofer & Slow Cooker (Proofer) is a great investment for home cooks who want consistent, professional-level results, or those with a cottage license who are baking a lot!

Its precise temperature and humidity control make it perfect for bread-making, as well as other fermentation projects, such as yogurt, kombucha, and kefir. It’s also versatile enough to be used as a slow cooker, which might sound strange, but it works!

The folding proofer is also super easy to use, with a touch button that allows you to switch between Slow Cook and Proofer modes. And if you haven’t already guessed it, it folds flat for storage, making it an even more interesting (and space-saving) appliance!

Cozy Bread™ Warming Mat

Cozy Bread™ Warming Mat


  • Budget-friendly (under $50)
  • Compact and portable
  • Makes proofing easier to control


  • Limited temperature range
  • Might require insulation for optimal heat retention

The Cozy Bread™ Warming Mat is easy to use, easy to clean, and easy to store due to its compact design. Controlling the temperature using this mat is so much easier than attempting to control the temperature of your kitchen!

Want to stick with a traditional proofing banneton?
Here’s our top choice:

Superbaking Banneton
Bread Proofing Basket

Superbaking Banneton Bread Proofing Basket


  • Eco-friendly rattan basket
  • It’s a KIT! (dough whisk, cleaning brush, scoring lame with 5 blades)
  • Price – typically under $25


  • None – it’s simple and straightforward

The Superbaking Banneton Bread Proofing Basket is one that I recommend for a beginner sourdough baker. You should at least learn how to bulk ferment, proof, control temps & humidity first — and then “graduate” to the easier models above. At least that’s my 2 cents. This kit has everything you need to make sourdough, aside from the actual sourdough starter.

Frequently Asked Questions

What is the ideal temperature for proofing sourdough?

The ideal temperature for proofing sourdough bread varies depending on the specific dough and desired flavor and texture. In general, a temperature range of 70-78°F (21-26°C) is considered suitable for proofing sourdough. Higher temperatures can result in faster fermentation and stronger flavors, while lower temperatures can slow down the process and yield milder flavors.

How do I use a bread proofing basket with sourdough?

To use a bread proofing basket with sourdough:

  1. Lightly flour the basket.
  2. Shape your dough into a ball or desired shape.
  3. Place the dough seam-side up in the floured basket.
  4. Cover the basket with a clean towel, and allow the dough to proof until it has expanded and passes the poke test.
  5. Preheat your oven and baking surface (such as a baking stone or cast iron skillet).
  6. Gently flip the basket onto a sheet of parchment paper or a peel, transferring the dough onto the preheated surface.
  7. Score the top of the dough with a sharp knife or blade to allow for expansion during baking.

What are the benefits of an electric bread proofer?

An electric bread proofer can make the process so much easier, including consistent temperature control and the ability to adjust humidity levels. This can help to ensure optimal proofing conditions, resulting in more consistent and predictable sourdough bread. Additionally, electric proofers can often double as a slow cooker or yogurt maker, making them a useful addition to your kitchen.

How long should sourdough bread be proofed?

The proofing time for sourdough bread varies depending on factors like dough temperature, fermentation speed, and desired flavor. In general, a bulk fermentation period of 4-6 hours at room temperature is recommended, followed by a shaped proofing period of 1-4 hours at room temperature or up to 14 hours when refrigerated. Keep in mind that these times are approximate and can vary based on your specific dough and ambient conditions.

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