I had one fully carbonated keg, and two being carbonated in my chest freezer with a Johnson controller at 40 degrees. The probe fell out of the freezer without me noticing, and all three kegs froze rock solid. Last night when I noticed this, I took them out and they thawed over night. They are now back in the keezer. I'll try them when I get home tonight. Any thoughts?
The two kegs carbonating were our flagship Amber. (6.3%) and the one is a higher octane (8%) of the same beer.