Too little folding can result in weak dough. But too much folding can produce excessive tension and compressive forces. An over-folded dough might have a tighter crumb as the layers of alveoli push against each other and coalesce. In the worst case, excessive folding might cause a dough to tear under too much tension.
How many times should you coil fold or stretch and fold? Generally 4 to 6 sets of stretch and folds should be sufficient (4 folds in each set). Similarly, 4 to 6 coil folds should be enough to develop the gluten in a higher hydration dough.
If you skip stretching and folding, chances are you will end up with soggy dough that doesn't hold its shape before or during baking. Developed strands of gluten help hold the bread together as it bakes, and contributes to a strong upward rise (called oven spring) rather than spread during baking.
High temperatures can cause premature over fermentation, which will result in wet, sticky sourdough. You need to make sure that you keep your kitchen at a temperature between 24C - 28C (75F-82F). Alternatively, you'll need to adjust the amount of starter in your dough to suit the temperature of your kitchen.
The good news: We found an easy way to rescue overproofed dough. Simply punch it down gently, reshape it, and let it proof again for the recommended amount of time. In the test kitchen, these steps resulted in bread that tasters found acceptable in both texture and flavor.
Over-proofed bread will collapse while baking, leaving you with a flat and unpleasant loaf. Not only that, but the bread will likely reek of alcohol. While it's entirely safe to eat (no, you won't catch a buzz!), it's better to fend off this unfortunate event in the first place.
Too little folding can result in weak dough. But too much folding can produce excessive tension and compressive forces. An over-folded dough might have a tighter crumb as the layers of alveoli push against each other and coalesce. In the worst case, excessive folding might cause a dough to tear under too much tension.
When the bulk fermentation goes too long — often when the dough more than doubles or triples in volume — the dough can over ferment. You know the dough has over fermented if, when you turn it out to shape it, it is very slack — if it's like a wet puddle — and very sticky and lacking any strength and elasticity.
If your dough is too sticky and it's impossible to work with you can add some extra flour, just a little at a time. Make sure you weigh the extra flour you add and then you'll be able to adjust the recipe correctly the next time you bake.
#1 Sourdough Bread Baking Tip
To prevent over fermenting your dough, use your refrigerator as needed. After you complete the 4 sets of stretches and folds, you can put your dough in the fridge at any time.
Stretch and folds are completed in sets. The first set is usually done about 30 minutes into the bulk rise. Then, you'll complete up to 4 additional sets spaced about 15 minutes to 1 hour apart, depending on the dough's flexibility and your own personal baking schedule.
They type of flour you use to create your sourdough starter will affect whether that starter will float in water. This is because some flours, such as rye or whole wheat, may not allow the starter to develop the strong gluten network needed for the starter to float.
After kneading, shape your loaf, cover it, and let it proof for 4-24 hours, depending on your specific sourdough starter and ambient temperature. You can manipulate the sourness of the bread with a longer rise time. A 24-hour rise time will produce much more sour bread than a 4-hour rise time.
Proofing sourdough in the fridge is effective because it allows the dough to rest in its shaping container while developing superior sourdough flavor. Unlike bulk fermentation (which must be done at room temperature), proofing can be done in cold fridge temperatures.
Overproofed sourdough dough loses all structure, so it's stretchy and slack when turned onto a work surface. The dough is also stickier than usual due to the lack of remaining gluten structure.
Dough that is over-fermented will start to spread once scored and look bubbly/weak. You'll notice it falling in a bit or a lot. Notice how the whole loaf is collapsing. If you notice your dough is over-fermented be sure to score very shallow and use a minimum of scoring slashes.
The crumb structure of an under proofed loaf will be tight and gummy. Because it was not given enough time to develop and trap CO2 gasses, the crumb structure will be very dense, with uneven air bubbles.
If your bread had a good rise and is still holding gas but got sticky while shaping, then it may be overworked. All bread dough requires a very gentle touch at this stage. If you break the gluten strands at the shaping stage by overworking the dough it will get sticky, flatten out in a blob, and won't look smooth.
Ideally, your sourdough starter should be loosely covered with a lid or paper towel to keep out bugs (like fruit flies) and other debris. A loose lid will also stop it from drying out too much.
How many sets of folds are needed? There's no single answer for how many sets your dough needs. If you hand-mix your dough, two to four sets should do it. Of course, the type of flour and hydration in a recipe also play a big role in answering this question.
Sourdough bread can be time consuming to make, and it can be difficult to fit it all in in just one day. Leaving it to rise in the fridge overnight means you can just pop it into the oven the next morning. This can be handy if you don't want to spend all day in the kitchen, or simply need to go out during the day.
It's virtually impossible to overproof (mature) your loaf using the refrigerator (unless you leave it for days) and the nice long second rise allows some overnight ZZZZ's or workday to take place without supervising the proof of your sourdough loaf.