Hello,
I make Ciabatta from time to time and it always comes out well except that to me, the crust is too soft. The bread has an excellent flavor, large air holes, and is nice and chewy. I am guessing that a bread expert would suggest that it should have more chew but it's fine for me.
Below is the recipe that I use. This is not the traditional low yeast/long prove/stretching method that artisan bakers would likely consider a true Ciabatta. Most of the bread I bake is enriched and so I start with a batter with all of the enriching ingredients, add the flour, and finish with plain water. This recipe isn't enriched so it's a little different from what I am most familiar with. My first thought is to bake at a higher temperature (at least initially) or to add a pan of hot water for steam but I thought I would ask here before messing up who knows how many loaves of bread trying to figure it out.
Suggestions are always appreciated,
LMHmedchem
A soft crust with a lean dough, especially a high-hydration one, probably indicates a need for more baking. Internal temperature is a good guide to make sure the bread is not undercooked but it doesn't indicate much about how much moisture is left in the dough. You can reach 210 deg F and have a very dry loaf or a moist one. The moisture comes out of the interior as the bread cools and sits around, and that moisture softens the crust.
I would bake these longer. If that seems to overbake the crust, lower the temperature during the extra baking period. Or even turn the oven off, crack the door, and leave the loaves in for 20 or 30 minutes (experiment to find what works for you).
Also, hold off wrapping for much longer than you think. Moisture is still coming out of the loaves even long after you think they have cooled down. I usually leave my loaves unwrapped for two or three days after baking (depending on the kind of bread, of course). If I have cut some slices, I just place the loaf cut side down on a flat surface. If I do that, I've found I don't even need to cover the cut surface with foil to keep it from drying out. I only wrap or bag my loaves after the crust gets too hard to cut easily.
Because a ciabatta is so open inside, it will probably need to be bagged sooner, but even so, experiment with wrapping much later than you have been doing.
My wife always complains when the crust isn't crunchy; I just leave it in the oven to cool. That usually works for me.
Are you not steaming the bread at all? I think that should help with the crust. Advice to leave it in the oven to cool is also great, that works very well.
Also since this is very high hydration, with time the crust certainly can lose the crispness very quickly if stored in a closed environment.