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**reinstone** · 02-03-2013, 04:06 PM

Hi. I need to cold crash in a better bottle. Does anyone get oxidation problems from this from the suck back? Thanks

Denny · 02-03-2013, 04:08 PM

You don't need an airlock if you're cold crashing. Fermentation is done at that point. Just seal your fermenter.

novahokie09 · 02-03-2013, 04:10 PM

I'm not sure what you mean by "suck back," but if you're simply putting your better bottle into a low temperature space, then oxidation wouldn't be a worry. If you're transferring into a secondary better bottle, then it is a very minor concern that I wouldn't worry about. Try to keep your racking hose below the liquid level to minimize any splashing.

**reinstone** · 02-03-2013, 04:13 PM

Quote:

Originally Posted by Denny

You don't need an airlock if you're cold crashing. Fermentation is done at that point. Just seal your fermenter.

So seal it up with a bung and crash, will I suck in o2 when I open it to transfer? These are really big ipas so I want to crash to drop out the massive amts of dry hops before moving to my kegs. Thanks

Denny · 02-03-2013, 04:27 PM

Quote:

Originally Posted by reinstone

So seal it up with a bung and crash, will I suck in o2 when I open it to transfer? These are really big ipas so I want to crash to drop out the massive amts of dry hops before moving to my kegs. Thanks

You could put a bung in it, but it might be difficult to remove. I usually just use foil and a rubber band. No worries about oxidation from opening it.

**reinstone** · 02-03-2013, 04:28 PM

Quote:

Originally Posted by Denny

You could put a bung in it, but it might be difficult to remove. I usually just use foil and a rubber band. No worries about oxidation from opening it.

Feel safe listening to you. Thanks foil and a rubber band it is