Stretch and Folds by Feel
Okay. Your dough's mixed, salt's in, and now you're staring at a shaggy mess in a bowl wondering what you're supposed to do with it for the next four or five hours. This is bulk fermentation, and stretch and folds are how you build strength into the dough without kneading it like a normal bread.
I like this part. It's fast, it's hands-on, and you get to feel the dough change in real time. That's rare in this whole process. Most of sourdough is waiting and guessing. This is one of the few places you get direct feedback.
What a fold actually does
You're not adding air the way you would whipping cream. You're organizing the gluten strands so they line up and trap the gas the yeast is already making. Think of it like squaring up a stack of lumber that's gotten cattywampus. You're not changing what's there, you're just getting it aligned so it can hold weight.
Every fold also redistributes temperature and food. The bottom of the dough is warmer, near the bowl. The top's cooler, near the air. Folding mixes that around so fermentation happens evenly instead of one side racing ahead.
The actual method
Wet your hand first. Dough sticks to dry hands like nothing else, and you'll end up fighting it instead of working it.
- Reach down one side of the bowl, underneath the dough.
- Pull that edge up and over to the opposite side, laying it down on top.
- Turn the bowl a quarter turn.
- Repeat three more times, so you've gone all the way around.
That's one set. Takes maybe 20 seconds once you've got the motion down.
Do a set every 30 minutes for the first two hours of bulk. After that, the dough usually doesn't need it anymore, it'll start holding its own shape, and you just let it sit and finish rising.
For a standard loaf, that's four sets total. Some people do more, some do fewer. I do four because that's what's worked consistently for me at our elevation and I've stopped messing with it.
What you're feeling for
Early on, first set or two, the dough will feel loose and kind of sloppy. It'll tear a little if you pull too hard. That's normal. Don't force it, just do a gentle fold and move on.
By the third set you should feel real resistance. It pushes back at you a little. It holds a stretch instead of ripping. That's the gluten doing its job. Oh man, when you feel that shift happen for the first time, you'll know exactly what I mean and you won't need me to explain it again.
If it's still tearing on set three or four, your hydration's probably too low for what you were aiming for, or your flour's just thirstier than you expected. King Arthur bread flour behaves differently than a generic store brand, and that's fine, you just adjust water next time.
Where I've seen people go wrong
Water temperature matters more than people think. I baked a loaf early on that came out looking like a hockey puck, dense all the way through, gummy in the middle, wouldn't rise no matter how long I gave it. Took me a while to figure out the water I'd mixed with had been too cold, and between that and our dry air, the dough had basically crusted over before it ever got a real chance to proof. The surface dried out and sealed itself before the inside could develop. Once I started using water closer to 80-85 degrees for the mix, that problem went away.
So if your dough feels tight and dry on top during folds, don't just push through it. Wet your hands more, work faster, and get it covered again right after each fold. A few minutes of exposed dough in our air can matter.
Also, don't over-flour your work surface or hands trying to keep things from sticking. A little water solves the sticking problem better than flour does at this stage, and you don't want to be adding dry flour into a dough you already balanced the hydration on.
My honest opinion here
I'd rather you stop folding a little early and get a slightly under-fermented dough than keep pushing for that big airy crumb everybody chases online. An underdone loaf still slices fine and makes a good sandwich. An overfermented one turns slack and gummy and falls apart on you. That's just my take, but it's saved me more loaves than it's cost me.
Cover the bowl between folds. Damp towel or a lid, doesn't matter much, just don't let the top skin over.
Before next time
Do your four sets with a timer running, don't eyeball the 30 minutes, and pay attention to when the dough starts pushing back against your hands instead of tearing. That feeling is the whole lesson.