[flbrewer]

I'm guessing there isn't a consensus here, but how cold do you do it and for how long? I have a chest freezer and a temp. controller FWIW.

[Wort-H.O.G.]

I'm guessing there isn't a consensus here, but how cold do you do it and for how long? I have a chest freezer and a temp. controller FWIW.

justin- depends. if you're cold crashing before bottling to improve clarity...give it a week.  i cold crash before fining and do it for 4+ days...schedule depending. then i add my gelatin and keg. cold crashing and conditioning is beneficial to your beer, so as long as you can and are willing to go....your call.

[brewday]

Set to 32, wait 2 days, transfer to keg.

[HoosierBrew]

+1 to the above. I crash a couple days ~ 32F. And on beers I plan to fine, the beer needs to be cold first to use gelatin or Biofine anyway. 

[duboman]

+2
2-3 days at 32 and keg

[leejoreilly]

I go from the fermenter straight to a keg, into the kegerator to carb and cold crash at the same time.

[flbrewer]

Any problems with the Star San freezing in the airlock?

[Wort-H.O.G.]

Any problems with the Star San freezing in the airlock?

yep it can. if im dropping temp for lagering 30F ambient i use booze in the airlock.

[flbrewer]

Should I be measuring ambient for this or actual temp?

[davidgzach]

Should I be measuring ambient for this or actual temp?

Doesn't matter.  The beer will equalize in less than 2 days.  I take the probe out of the styrofoam and go ambient so my freezer doesn't burn out.

[flbrewer]

Ok. Just thought the beer may freeze at some point. Alternatively I was concerned w my chest freezer running for so long if it's measuring the beer.

[Stevie]

Measure ambient. If you measure the beer, the freezer will run for hours before it hits temp.

[Steve Ruch]

Ok. Just thought the beer may freeze at some point. Alternatively I was concerned w my chest freezer running for so long if it's measuring the beer.

You have to go quite a bit below 32 to get beer to freeze.

[denny]

Any problems with the Star San freezing in the airlock?

If you're cold crashing, the fermentation is done and you don't need an airlock.  I just seal the fermenter before crashing.

[flbrewer]

How's that Denny? The Speidels don't seal. Foil?