cold fermentation

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I recently did a long cold fermentation with my dough. I noticed tiny dark spots on the surface. This did not effect the quality of the bread but I am curious to what this is. Any suggestions?

My baked bread gets dark charcoal spots on it when I spray the oven walls.

You might also share what flour you are using. 

What formula are you using?

What temp is the refrigerator?

 

Profile picture for user jimbtv

Just white AP flour or others too?

Is you malt powder being fully incorporated or is there a chance some of it is clumping?

What percentage of malt powder?

Personally I throw a quick batch together and eliminate the malt this time. The lack of 1% malt shouldn't have much of an effect. I'd be curious to see if the spots went away.

I know of no chemical reaction that would make the black spots and without the addition of some specialty flour, like buckwheat (which has black hulls), I'd suspect the malt.