Prevention of chill haze

[biertourist]

fmonttb --WHICH ONE WAS CLEAREST ?????????

I know, I know! Pick me, pick me!
Our friend Stoke has already told us the answer: http://en.wikipedia.org/wiki/Stokes'_law

-The one that sat the longest. (11 days).

Particles in a suspension naturally settle at a rate that is based upon the density of the liquid and the square of the radius of the particle.

This means the longer a suspension rests the more particles that will be settled out. It also means the larger the particles the faster they'll settle out (this is how finings work, they attract particles to the finings and bind them together in a much larger particle size so they fall out faster).

Tanks that are wider and shallower will settle faster, too because the particles have less distance to fall.


Beyond that there's all sorts of ways to "cheat" (centrifugal force via a whirlpool or forced filtration).


-I'm totally stoked about Stokes; he explains to us how lagering works! ; )


Adam

 

[bobtheUKbrewer2]

what is a colloidal particle - will it settle?

 

[m3n00b]

I had chill haze until I cold crashed with gelatin in my last batch. Now it's crystal clear.

 

[dyqik]

I'm a UK brewer and I always leave in primary for two weeks, then depending on type, may transfer.

I always did as well. 10 days to 2 weeks or so in primary then to pressure barrel for cask serving and/or bottling. I now sometimes primary for 3 weeks, or primary for a week then secondary for 10 days before bottling.