thatguy314 wrote:I haven't noticed a substantial change in flavor, but I've noticed that after accidentally freezing some beers in my kegerator (temp controller went wacky) after thawing they had substantially less body and head retention. I think Jamil said he noticed something similar on the Eisbock show, which lead me to believe that I wasn't crazy.
That said, I've accidentally frozen and thawed some commercial beers and hadn't noticed a huge difference. I guess it's up to you.
I was cleaning my kegerator and once complete, I neglected to put the probe for the thermostat back into the cavity of the freezer and left it sitting on the windowsill, so it ran constantly for a full day and a half before I even noticed. That shit was frozen solid.
I think there was some change to the beers, and I also think it sped up some of the aging process - the aroma hops in my rye IPA dropped a lot in just the last week, way more than normal.