Settling tank

So I’m preparing to brew my first lager. I want to go from the kettle into a better bottle that I will use as settling tank to chill the work don’t from 70 to 45 where I will rack into my speidel tank fermenter. I know this will put pressure on the better bottle as the temp changes so I was thinking of putting a carbon cap on the top with a inline sanitary air filter in the racking outlet. This should protect from any bugs getting in as air is drawn into the better bottle.

Does this seem like it would work? Am I missing something potentially dangerous here?

I cold crash in a better bottle all the time without issue. The higher the fill, the less compression.

Why don’t you just put some foil over the top? If you haven’t pitched yet, there’s no reason to worry about sucking in air.

Just to get you in the know we brewers call that a “bright tank” or even “secondary”. Keeps us speaking the same language.

Good point.

It’s not a bright tank or a secondary as it’s before fermentation…unless I’ve really missed something…I use those terms often when appropriate after primary fermentation.

I’m just looking for the most sanitary way to settle out break material so there is less present when I pitch the yeast and actually ferment, but it looks like the consensus is that I’m over complicating this. Thanks for the feed back guys!

Kai talks about settling tanks on his page.
http://braukaiser.com/wiki/index.php?title=Fermenting_Lagers#The_conventional_fermentation_in_a_German_lager_brewery

My apologies. I misread your post. I should wait till after my coffee to read/post on forums. This is not the first time.

I guess you are trying to leave as much trub behind as possible. Personally, I think this is wasted time. Just whirlpool, run off as much clear wort as possible. There is nothing to fear by bringing over some break material into fermentor. In fact, some is beneficial to fermentation.

Yeah I was a little worried because BIAB and that tends to produce excessive trub. Maybe I should just chill.

Just let it sit ann extra 10 minutes in kettles. Won’t hurt anything.Run as clear as possible and don’t sweat the rest.

Just a thought but will your boil kettle fit in your cooling chamber then one less transfer and one less thing to clean.

I do this with every lager.  I’ll fill a 6 gallon better bottle almost to the top, put tin foil on it and throw it in the fermentation chamber.  The next morning I rack the wort over to another better bottle, aerate, pitch and let it go.  After settling out overnight, there’s usually an inch or two of sediment in the bottle of the first BB.

I used to as well but it was an extra hassle I didn’t care for and didn’t notice any real difference if I didn’t, except maybe the yeast was a little cleaner on repitching.