If bread does not rise enough in the oven and comes out flat, the problem is usually the yeast, the proofing time or how the dough was shaped; the most common cause is not letting the second rise go on long enough.
Why doesn't bread rise enough?
If the yeast has lost its activity or is past its best, it cannot produce enough gas inside the dough; the dough can look normal at first glance but fail to get the burst of oven spring it should in the oven. Shaping the dough into too tight a ball also limits rise, since a tight surface leaves little room for the gas the yeast produces to expand into.
If the second rise, the rest before baking, is not given enough time, the dough goes into the oven still underdeveloped, and the oven's heat sets the crust before the dough can keep rising, which stops the rise early. Dough left to prove in a cold kitchen can run into the same problem, simply because yeast activity moves more slowly in the cold.
How do you fix bread that comes out flat?
Next time, you can test how fresh the yeast is by letting it sit in warm water for a few minutes and checking whether it foams; yeast that does not foam should be replaced. The second rise can be judged by pressing the dough gently with a finger — if the dent fills back in slowly, it is ready; if it does not fill in at all, the dough has over-proofed, and if it fills in instantly, it needs more time.
Shaping the dough gently, leaving a little surface tension rather than forming a very tight ball, lets the gas the yeast produces expand more freely. Scoring the top of the dough with a sharp knife just before baking also helps by giving the expanding gas somewhere to go.
How does oven temperature affect the rise?
If the dough goes into an oven that has not fully preheated, it spends too long before the crust sets and misses the quick burst of heat known as oven spring; preheating for at least twenty minutes gives the dough that initial shock. Some bakers place a tray of hot water in the oven for the first few minutes to create steam, which keeps the crust from hardening too soon and lets the dough keep expanding for longer.
Does the type of flour affect the rise?
Dough made with low-protein flour builds a weaker gluten network and cannot hold onto the gas the yeast produces as well, giving a flatter result; higher-protein flours like bread flour trap that gas better and support a fuller rise. Dough made with whole wheat flour tends to rise a little less than the same recipe made with white flour, since the bran physically cuts through the gluten network — that is a natural difference in the flour, not a mistake.
Water temperature also directly affects how fast the yeast works; water that is too cold slows it down, while water above about forty degrees can kill it, so lukewarm water, comfortable to the touch, is the safest range to use. Keeping salt from touching the yeast directly when mixing the dough is another simple habit that keeps the yeast from slowing down too early.
Comments (2)
Hamuru şekillendirirken tarifte dediği gibi çok sıkı top yapmadım, yüzeyde hafif gerginlik bıraktım; fırın sıçraması dediğiniz o ilk kabarma gerçekten çok belirgin oldu, somun bu sefer güzel yükseldi.
Mayamı test etmeden kullandım, köpürmedi ama fark etmedim; hamur iki saat beklemesine rağmen hiç kabarmadı, fırından yassı bir somun çıktı, tarifi tekrar okuyunca köpürme testini atladığımı anladım.
Köpürme testini atlamak neredeyse her zaman bu sonuca götürür, maya taze değilse hamur kaç saat beklerse beklesin gerçek anlamda kabarmaz. Bir dahaki sefere ılık suda birkaç dakika bekletip köpürdüğünü gördükten sonra devam edin.