How to Tell When Sourdough is Done Proofing

Juliana Garofalo
3 min readNov 7, 2023

Sourdough bread is a beloved staple in many households, known for its distinct tangy flavor and chewy texture. One crucial step in sourdough bread-making is the proofing process, where the dough undergoes fermentation to develop its characteristic taste and structure. But how do you know when sourdough is done proofing? In this guide, we’ll explore the key indicators to help you determine when your sourdough is perfectly proofed.

Time and Temperature Matter

The first thing to consider when determining if your sourdough is done proofing is the time and temperature of the proofing process. Sourdough is a slow riser, and the proofing time can vary depending on several factors, including room temperature, starter activity, and the specific recipe you’re using.

Typically, sourdough dough is left to proof at room temperature, which can range from 68°F to 78°F (20°C to 25°C). At the lower end of this range, proofing will take longer, while at the higher end, it will be quicker. A general guideline is to allow your dough to be proofread for 4 to 12 hours, which can be adjusted based on your circumstances. Keep an eye on the dough, and when it has visibly increased in size and appears puffy, it’s time to move on to the next step.

The Finger Poke Test

One of the most reliable methods to determine if your sourdough is done proofing is the finger poke test. To perform this test, lightly flour your finger and gently press it into the dough, about half an inch deep. If the indentation springs back slowly and leaves a slight impression, your dough is adequately proofed. If the dough bounces back quickly, it needs more time, and if the indentation remains, you may have over-proofed it.

Look for Bubbles and a Rise

Another visual clue that your sourdough is ready for baking is the presence of bubbles and a noticeable rise in the dough. During the proofing process, the yeast and lactic acid bacteria in your sourdough starter produce carbon dioxide gas, creating air pockets within the dough. When these bubbles are evenly distributed and the dough has visibly expanded, it’s a sign that fermentation is progressing well.

The “Jiggle” Test

Experienced sourdough bakers often rely on what’s known as the “jiggle” test to determine proofing readiness. Carefully lift and gently shake the container holding your dough. If the dough jiggles slightly and moves as one cohesive mass, it’s a good indicator that it has reached the desired level of proofing. If it appears too loose and wobbly, it might need more time to develop structure.

Smell the Aroma

The aroma of your sourdough can also provide valuable clues about its proofing status. As the dough ferments, it will emit a distinctive sour and slightly yeasty smell. When this aroma is pronounced and pleasing to the senses, it’s a sign that your sourdough is likely well-proofed and ready to be shaped and baked.

Avoid Over-Proofing

While under-proofing can result in a dense and less flavorful loaf, over-proofing can lead to a flat and unappetizing outcome. Be cautious not to let your dough proof for too long, as it can exhaust the yeast and bacteria, causing the dough to lose its structure and become overly acidic. Monitoring the dough closely during the proofing process is essential to achieving the perfect balance.

Determining when sourdough is done, and proofing is a crucial skill for any sourdough baker. By paying attention to the time and temperature, performing the finger poke test, observing bubbles and rise, conducting the “jiggle” test, and smelling the aroma, you can develop a keen sense of when your sourdough is ready for the oven. Mastering this art takes practice, but with experience, you’ll consistently produce delicious, well-proofed sourdough bread that will impress your family and friends. So, roll up your sleeves, get your hands in the dough, and enjoy the journey of perfecting your sourdough baking skills. Happy baking!

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Juliana Garofalo

Juliana Garofalo is a dedicated member of the organization, frequently visiting their site in the Florida Keys.