August 19, 2020 - 7:04pm
Poolish deflates and rise back
My poolish was in room temp for about 6 hours and then i put the poolish in the refrigerator.. the next morning.. it deflates ... but when i let it sit in room temp it will rise again .. is it normal? Thank you in advance hope you can shed light to this experience fellow bakers. Newbie in artisan baking thank you
Share
I wouldn't say normal, but we know air expands when warm and contracts when cold. Could it just be deflated cuz of the cold in the fridge, and reflating cuz of the warmth when you take it out?
Reflating ha, is that even a word. I'm tired - Enjoy!
CO2 production will slow down considerably in cold temps then start back up again in warm envoronment. thats whats happening here ;)
Gases lose volume when they cool significantly, thus the bubbles of gas in your poolish decreased in size causing the size of the poolish to decrease. Once the dough and gases in the dough warm up the gases increase in volume and the poolish looks larger. Totally normal.