[quattlebaum]

i crash in the fermentor  for a few days at 30F also then transfer to keg. +1 for not crashing in a better bottle or any other pliable fermentor it will implode. Well it did on me once never again.

[dzlater]

I crash in the keg.  Cold crashing in a better bottle with an airlock is not a good idea.

May I ask why? As I have done this before

[Wort-H.O.G.]

I crash in carboy. Prefer to leave more sediment behind before transferring to keg and if applicable, it's cold and ready for fining.


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[toby]

I crash in the keg.  Cold crashing in a better bottle with an airlock is not a good idea.

May I ask why? As I have done this before

The contraction of the liquid and airspace as it rapidly cools will effectively create a vacuum and cave in some portion of the bottle if you have a better bottle dry airlock since it seals really well, IME.  If you have some sort of breathable bung, it would suck in air (along with a portion of oxygen).  If you have a standard airlock with liquid, it will potentially suck in that liquid leaving it exposed to air.

[toby]

+1 for not crashing in a better bottle or any other pliable fermentor it will implode. Well it did on me once never again.

Yep same here.  I have no desire to create stress lines (and potential cracks) in the thing.

[rbowers]

If you have an extra keg you can cut 1-2 inches off the end of the dip tube and use this as a cold crashing keg.  Rack from primary to this keg and crash.  Once you're satisfied that everything has dropped out you just rack to a new keg- all the trub/yeast/etc will be below the end of the tube and nothing but clear beer gets transferred.  I do this when lagering as well.  Works great.  Only down side is you may lose a beer or two.