Too much space in Carboy after racking

[sigaas]

I'm working on my first batch of beer and last night I racked it from my primary fermenter into the carboy. Unfortunately, the carboy is now only about 3/4 full. Should I fill the rest of the carboy with water or should I just leave it? I don't really want a watered down beer, but I'm concerned about all the extra air in the carboy.

At this point, the carboy is capped and a trap is on it.

Any help is greatly appreciated!!

 

[El Pistolero]

I'm working on my first batch of beer and last night I racked it from my primary fermenter into the carboy. Unfortunately, the carboy is now only about 3/4 full. Should I fill the rest of the carboy with water or should I just leave it?

Don't pour any water in there! There will still be enough CO2 generated/coming out of suspension to make a thin blanket and protect the beer from O2, IMHO.

 

[voodoochild7]

I put water in once and the beer was way watered down I've never done it since no matter how much is left in the carboy.

 

[anthrobe]

I agree with all. Do not put any water in the carboy. Frequently I rack my primary into a 6.5 gal secondary. No problems yet.