Why does my bread keep 'blowing out'?

Why does my bread keep 'blowing out'? - Close-Up Photo of Cookies

Instead of swelling as a whole loaf, my loaf will often expand in the oven off to the side or the bottom - looking 'blown out', a big tear. This results in a loaf that leans to one side, doesn't rise well, or generally doesn't look good.

Why is this happening and what can I do about it?



Best Answer

Blowing out happens because the extra expansion of the bread in the oven, called oven spring, expands further than the skin of the bread can accommodate.

The protein sheets that make up risen bread can toughen when they dry out. When the bread is introduced to the sudden high heat of the oven the water and alcohol vaporizes, filling the loaf with gas. If the outer gluten sheets were allowed to toughen or if the spring is just to great then the sheets have to tear to make room. The tear will happen wherever the sheets are weakest. This seems to be usually in the ugliest spot possible for a blowout.

It would be possible to reduce the spring by baking at a lower temperature but the spring is desirable and results in a lighter texture. The solution must come, therefore, in softening the gluten or controlling the expansion.

Fat softens bread so this problem happens mostly with lean doughs. One possible solution for some breads is to increase the amount of fat in the dough.

Keeping the surface of the dough moist will also help. Keep the dough covered while it is proofing and spraying it with water when it goes in the oven, and, if possible, having a humid environment in the oven will keep the proteins from drying out.

The traditional solution with lean doughs is to allow the blowout to occur but control the direction. In this way the loaf can be both light and attractive.

Slashing the surface of the loaf releases some of the pressure and allows the baker to have some control over the direction of expansion.




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How do you prevent bread blowouts?

Keeping the surface of the dough moist will also help. Keep the dough covered while it is proofing and spraying it with water when it goes in the oven, and, if possible, having a humid environment in the oven will keep the proteins from drying out.

Why does my bread keep deflating?

The reason for this is that the yeast in your bread has exhausted itself and does not have any more energy after you put it in the oven. Also, your bread dough has expanded too much and when you put it in the oven your dough cannot rise anymore because the yeast cannot produce any more gasses and it then collapses.

Why is my bread bursting?

If your dough is too dry it can form a crust before it had time to rise in the oven. This will cause the crust of your bread to crack and let the air out of the bread wherever it cracks and expand those cracks into bigger cracks or \u201cbursts\u201d. For more on moisture and steam read below section on STEAM.

Why is my bread spreading instead of rising?

The reason bread dough spreads out rather than rise up is likely because of weak gluten structure. A better gluten structure means a better upward rise. Gluten essentially acts as a netting that keeps the bread together, confining the gas produced during fermentation and giving it the texture we all love.



Why Does My Bread Dough Collapse?




More answers regarding why does my bread keep 'blowing out'?

Answer 2

If you mostly dislike the direction it expands to and the irregular shape of the loaf, you may try to help it a bit. First, take care when forming the loaf – try keeping the last fold crack (as created before the last proof) on the bottom of the loaf when it goes to the oven and slash the surface with a sharp knife or razor, to promote expanding upwards.

The oven inside and the loaf surface must be humid enough or the slashes will dry up and close before the loaf expands.

Answer 3

If you are having issues that it is blowing out on the sides... Like a big tear, then this is probably linked to your questions about steam? If there is not enough hydration in the air surrounding the bread, oh boy, big problems. I had often seen guys pull racks of french bread out of the oven which they had either a. forgot to engage the steam cycle, or b. started it late. As I'm sure you know, when you put the bread in the oven, the yeast goes on a feeding frenzy, which produces more co2, which is what is causing the jump. the steam in the oven is actually retarding the ability of the bread to jump. If there is not enough / no steam present, the bread finds the weakest spot, and tears - all because of this supercharged yeast activity.

I hope that's what you are asking, if not, my apologies.

Answer 4

I would suspect that your method of final prep may be causing the problem. If you are folding the dough to form your boule or batard you need to ensure that the seam is pinched together and then flipped to be on the bottom of the loaf otherwise you may get a side blowout. It may also be that your slashing is not deep enough to control the expansion.One way to help the loaf is to do the slashing when you place the bread in the oven on the stone or rack as sometimes the slash will close if done to early or not deep enough. You get some very nice expansion patterns when you slash the bread on the stone. Finally don't be shy with the knife or razor, slash at least 1/4 inch or more will help stop the blowouts.

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