Before I start the discussion, let me say this: This isn’t a discussion meant to argue that one is better than the other, nor will I suggest you use one folding technique exclusively. But what I will say that at least in my experience, the folding technique you use depends on the bread you’re making, and it will affect the type of container you use for fermentation, though I realize many bakers prefer to do their folding on their bench.
So I have a rule-of-thumb with respect to the type of folding I do: If I’m using whole grain flour at or above 20%, or if my dough contains inclusions such as cheese or nuts or dried fruit, I will invariably use coil folds. The reason for this is that it is much gentler on the dough and the particles of inclusion material or bran have less of a chance of tearing the dough. Otherwise, I’ll just do regular stretch and folds.
Now that’s the kind of general rule-of-thumb I use. But the reality is that as of late, once my dough becomes pretty gassy, I tend to do coil folds for my final sets, irrespective of inclusions or whole grain. I do my best to retain the gases as much as possible especially with naturally leavened bread. I don’t want to ruin all the work the wild yeast has done.
The exception to this is when I do yeasted breads, such as baguettes. I will always do stretch and folds with a dough that uses commercial yeast. The reason for this is that it’s fast-acting and once activated very active, so I’m less concerned about degassing the dough and can be a little more assertive with it. Those little buggers will just pick up and fill the dough wtih CO2.
I realize that this is nothing groundbreaking, especially for experienced bakers. And this entry, as most of my non-recipe entries – is more of a reminder for me to practice what I just preached.
I lurk a lot in online bread baking forums in search of tidbits of information and insights that will help me improve my skills. And though I’ve finally reached a point where I can consistently make a pretty good loaf of bread, I’ve refrained from contributing to public forums. But that doesn’t mean I don’t want to share, which is one of the reasons I devoted this blog to bread baking. A large part of this blog is a diary of the things I discover, the other part of it is sharing the lessons I learned. And a HUGE lesson I’ve learned is this:
With no-knead bread, if you want good oven spring, you have to have achieve sufficient dough strength so the gluten network retains the gases to promote forming gas pockets and be strong enough to hold the dough’s general shape in the first 10-15 minutes of baking.
Okay, for the experienced baker, this is a given. But for many folks like myself up until recently, it wasn’t an intuitive thing. I now know how to feel that my dough has strength and the telltales, but when I first started making bread, I was just following the recommendations in the recipes I’d follow.
Specifically, I’m talking about the recipes in Flour Water Salt Yeast (“FWSY”) by Ken Forkish, which seems to be the “reference” book for many home bakers. It surely was mine when I first started out. I still follow many of the principles Ken lays out in the book, but after having created dozens upon dozens of loaves over the last few months (I bake atleast two loaves a day), I realized that there was one discussion that was missing in the book, or more implied rather than specifically called out and that is developing dough strength and why it’s important.
On page 35 of FWSY, he has a page devoted to folding. The salient point of the section is in the first paragraph:
Doing this [folding] several times during the bulk fermentation of the dough helps organize the dough’s gluten network, which allows it to holod on to gases produced as the dough ferments… The more complexly knit this network of gluten becomes, the more strength the dough has.
That nails it. And for a more experienced baker, the implication is clear: Developing dough strength gives you a better rise and oven spring.
But for the beginning baker following recipes, they don’t have the experience and, more importantly, haven’t developed the feel for dough strength. So like me, they’ll just follow the recommendations as in the Saturday White Bread which specifies just two folds. But that’s assuming you’re using AP flour or white bread flour. But even with those flours, if you haven’t sufficiently folded the dough and developed the gluten network, even those will collapse or spread out in the oven like the loaf shown below:
As you can see, the crumb on that loaf actually wasn’t all that bad. At first, I thought it was a proofing issue, but if it was, I would’ve gotten a really weird, uneven rise. So after doing a bit of research, I learned that I hadn’t developed enough strength in my dough.
I have to admit that I kind of scratched my head at that discovery because I followed the Saturday White Bread recipe in FWSY absolutely closely. But two folds was just not enough. As a dough expands in the oven, you should get both horizontal AND vertical rise. If you don’t get much vertical rise, it means the gluten network isn’t strong enough to support the vertical height. Also, if you look at the loaf, it’s also not scored on the top. That also could be a contributing factor as there may have not been enough give in the top skin, which forced the bread to expand outward instead of up, but that’s another discussion altogether. For now, we’ll just focus on developing dough strength.
How Do You Know Your Dough Has Strength?
I’m just going to start off by saying that there is no magic number to the amount of folding you need to do. Even Ken Forkish says in the last paragraph of “What Is Folding?” on page 35:
The recipes in this book each give guidance on the time and number of folds recommended, usually specifying a range, such as three to four folds. However, I don’t want to be overly hard and fast with rules about this. When working with your douh, you’ll be able to see the physical change after you’ve folded it. If, based on what you observe, you want to give it one more fold, go ahead and do it.
I remember reading that last line and saying out loud, “What the f$#k am I supposed to observe?” But despite that, I went on reading because I thought he might delve a littler deeper into the observation. Unfortunately, that’s about as far as he went with it.
So I had to do a bit of research and did a lot of baking and have a couple of telltales that I use to make sure I’ve developed enough strength in my dough.
The first test is a common one that you’ll probably see online – a lot. It’s known as the windowpane test. Basically, you take a hunk of your fermenting dough and stretch it. If you can stretch it into a thin membrane (window) without it tearing, then you have good dough strength.
But there’s also a way to feel the strength developing when you’re doing your stretch and folds that I use to gauge how far along my dough is. When it’s time to do a stretch and fold, if, when you do the first stretch, the dough stretches really easy and you can stretch it to two times the width of the dough ball, it’s likely not strong enough. And when you finish the last fold, if the whole dough ball doesn’t want to come along when you pull, you don’t have enough strength in your dough.
Furthermore, when you stretch and fold, you’re supposed to turn the dough over onto the folds after you’ve formed a ball. You should be able to do this easily if your dough is strong. But if you finish and the rest of the dough settles back, then you don’t have enough strength and you’ll need to do more rounds of folds.
That said, if you’re working with a super high-hydration dough (like above 80%), your dough will have a tendency to collapse, no matter what you do. But when you stretch high-hydration dough, the dough mass should come along with your stretch. If it shows signs of tearing, you’ll need more folds.
For this very reason, as opposed to following the guidelines in FWSY, I’ve taken the Tartine Bakery approach where they do 6 folds over the course of 3 hours, doing one every half-hour. I know, that’s very involved. By the time you do the last stretch and fold, you can really feel the resistance!
Folding Forms the Foundation
A lot of emphasis is put on shaping and creating a taut skin to get a good oven spring. No doubt, it is critical. But if you don’t have the good foundation of a well-developed gluten network with which to start, you won’t get as good an oven spring. It’s really the combination of a well-developed gluten network AND a nice, tight skin that will give you great oven spring, at least as far as structure is concerned. There are other factors as well, but those are beyond this particular discussion.
For me, I started getting great oven spring when I started to trust what I was feeling in the dough as I folded it. Was it too easy to stretch? Did it feel like tearing? Or did it put up some resistance and want me to take the whole dough ball in one pull? These questions led me to fold the dough more than the prescribed or suggested amount of folds in FWSY, and since then, I haven’t had to worry that my loaves will collapse, even with really wet dough. And especially now that I’m using a whole wheat and high-extraction flour combination, those extra folds have worked wonders with my oven spring.
I thought that maybe it was my folding technique that was flawed. But as I mentioned in a previous article, this is exactly what they do at Tartine Bakery!
Now all that said, I’m only sharing what works for me. You may do fewer folds and still get great results. The great thing about making bread is that though there is a certain exactitude to the process, there’s also a lot of variability. So what may work for some, may not work for others and vice-versa.