How to get an Exaggerated OPEN Crumb?

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I would love to experiment with getting a crazy open crumb in my sourdough breads, does anyone have a link to a recipe that is design with this end result in mind? 

I see a lot of these on instagram but a lot of them are just pictures with no recipes or instructions for how they got there. 

The most exaggerated case was someone cutting in half a loaf of bread to reveal virtually no crumb at all, it was literally all crust....HOW!!!

How is that even possible? 

With as little handling as possible. You want a no knead bread with long fermentation. A quick shape, final proof and bake.

Do nothing bread is normally a mix of whole wheat and white flour (60% whole wheat + 40% bread flour), 90% hydration, 2% salt and 1% starter. Mix until there are no dry bits left and bulk ferment for 24 hours. Give one stretch and fold at the 12+ hour mark. Shape like a ciabatta and final proof for one hour. 

You can use another mix of flour or go for an all white flour bread but change the hydration accordingly. I have found an all white flour bread works well at 75% hydration for this method. I wouldn't go for 90% hydration for an all white. So adjust the hydration according to the flour. 

To bring out the best of this bread is really not to work it too much and let time develop the gluten. A machine is too much. Just mix by hand (or if using a machine just enough so there are no dry bits of flour but nothing more). 

The more the dough is worked the smaller the holes. 

This will produce a nice open crumb you're after. Can't promise you just crust :) but will resemble the breads you're talking about. 

on bread bowls designed with the idea of being more hollow inside to hold soup...  Don't know if I can find any of them.

Also "glass bread"... is more open and fragile...  http://www.thefreshloaf.com/node/50270/glass-bread

and:   http://www.thefreshloaf.com/node/28361/pan-de-cristalpa-de-vidreglass-bread

check out the big holes way down the page!

"The most exaggerated case was someone cutting in half a loaf of bread to reveal virtually no crumb at all, it was literally all crust".

Try this on for size...

or this one...

The first was completely acceptable, but veering toward borderline, the second was a mistake.  I hope never to meet picture #2 again although I bet that I could reproduce it.  And other than just for the scientific curiosity, I don't know why anyone else would either, especially if you are planning on a jam sandwich ;-) .  However...

These were both biga based with commercial yeast.  Severe gluten development. A first aggressive stretch and fold on a most elastic dough.  Increasingly more gentle stretch and folds (think caressing a newborn puppy by S&F #3).  Finally using especially gentle kid gloves during divide and shape.  Hands off as much as possible.

Be careful what you wish for.

Ciabatta at 83-85% hydration, 40% of flour is in pre-fermented standard biga, 2% salt, .3% total IDY, .

  1. Mix together in stand mixer w/very cold water and beat the living crap out of it until the sides of the mixing bowl continuously slap loudly from the dough.  Can window pane it to ensure "steroidal level" gluten development.  Should glisten and look sticky.
  2. Give a lot of room for this to rise, best if turned out into a rectangular type of vessel if possible.
  3. S&Fs at 40-50 minute intervals inside the fermenting vessel.
  4. S&F #1 - aggressive with good stretch (no tearing of the dough).
  5. S&F #2 - gentle but firm.
  6. S#F #3 - puppy dog gentle
  7. Turn onto well-floured bench and divide.  No pre-shaping.  
  8. Cradle and extend dough out onto well floured couche.
  9. Proof another 40-50 minutes.
  10. 450dF oven for ~30 minutes with steam on front end of bake.
  11. Avoid manhandling - even slightly after 1st S&F.