Delayed Fermentation - how has it worked for you?
Over the past few months I've been trying delayed fermentation technique (pizza dough and basic bread dough mostly) as inspired by BBA. In between these attempts, I've also been doing the usual fast (all in one day) rise baking.
Although I've not had a baking session with both delayed and fast-rise going in the oven together to compare side by side, I'll be honest I can't really find much improvement using delayed fermentation. In fact I've gotten better, tastier, crustier results in some cases using fast-rise.
I'm curious to know whether I'm expecting too much from delayed fermentation. Are the differences dramatic or subtle? Do I simply not have a discerning palate to appreciate the complexities of delayed fermentation?
Please tell me how it has worked for you.
I have used delayed (cold) fermentation for a few breads. I think there are three effects: With sourdough breads, it seems to make them more sour. It has complex effects on the crust of all breads. It seems to make a sweeter crust with a darker, reddish color and little blisters under the surface. With some breads, like Hamelman's Multi-grain levain, it results in a more intensely flavored crumb that I can't really describe, since it is so complex.
Some one who knows more about bread chemistry than I might be able to provide a more scientific explanation. I just know that both yeast and lactobaccili do different things to whatever they are eating at different temperatures and pH's.
Hamelman in particular makes a point of saying whether or not each levain bread for which he provides a formula "benefits from cold fermentation" or not. Why do some breads "benefit" and others do not?
If you use a delayed fermentation, the yeast becomes dormant and gives acids a chance to develop. Between 35-45 deg. F acetic acids develop best, eating off the complex sugars in the flour. Between 45-55 deg. F , lactic acids develop best. They also develop flavor from the sugars, but are considered blander. I almost always use a delayed fermentation to a degree. some breads, like foccacia and ciabatta, don't seem to improve much. My last batch of bread I made was a sourdough wheat/rye mix that I let ferment for a week in the fridge. My family seems to think it was one of my best breads so far. There are also nutritional benefits to delayed fermentation as well, especially with whole grain breads. The acids break down some of the compounds making them more digestible. Back to flavor. With a quick rise bread most of the flavor will come from the yeast. It's a bold up front flavor which many people enjoy. Not many other compounds get to develop, but it's what a lot of people like. With delayed fermentations, more subtle flavors are in the dough and the taste seems to linger. It's also a little chewier and tends to keep better. Many breads actually improve with flavor over a few days. They don't tend to be real good straight out of the oven and rye breads can be down right horrible. So, for instant gratification, a good straight yeasted bread is probably best. for more subtleties, sourdoughs or cold fermented is the choice.
I use a slow fermentation with less yeast - more to get the bread to fit my schedule instead of the other way around. I'm probably going to redo a recipe on saturday that took 2 days from start to finish the first time and speed it up to a few hours and see if there is a difference.
yes I did follow the BBA recipe for ciabatta (poolish). I did not get a very good crumb but that was probably due to poor handling more than anything.
I do know that I got pretty good results using an all-in-one-day method.
I will certainly revisit the recipe sometime in the future. I've not yet tried pate fermentee for baguettes etc. Diastatic malt is something I've read about but I've limited myself to using readily available ingredients for the moment. Again, I intend to try it in the future.
Thanks for the info.
I have pretty much totally gone to cold, delayed fermentation ever since I attended Peter Reinhart's lecture at The Asheville Artisan Bread Festival in March. I checked, and that was 34 loaves ago. As HogieWan mentioned, one the best benefits is in scheduling flexibility.
My schedule runs pretty much like this: Day 1-refresh starter at 2:00ish, and at 10:00ish Day 2- Mix, perform 4 S&Fs @ 10 minute intervals, scale to loaf sizes, and move straight to a 38 degree fridge.
Bake days are on Day 4, 5, or 6...whichever is most convenient. Not an odious amount of work on any given day, but enough to be Zen like.
My wife and I both feel day 5 or 6 produces the tastiest bread, but all are excellent. Life is good!
I've been experimenting with long fermentation too. I've been baking only with sourdough starter for a while, and frankly, I do not like the extra sourness that comes with this method. If timing were not an issue, I wouldn't do it.
I pitched the yeast into my last batch about 40 hours ago and there is still almost no kreusen on top and no airlock activity. I'm not really worried about it just puzzled as to why a delay in this batch. I did things pretty much the same as my past ten or so batches. Maybe a bit lower pitching temperature but that's it. Usually I get a very active fermentation in eight hours or so. Any thoughts?