Sterile filtration?

[ChristianSA]

Hi,

Will a DE filter (keiselgur) + 1 micron cartridge remove harmful microorganisms?

-Christian

[dberg]

1 micron is too big to remove all bacteria. You need .45 microns absolute.

http://probrewer.com/resources/filtration/applications.php

[mic_mac]

I read somewhere that publicity shy :p Scots micro, BrewDog had changed their filtration from sterile to a less tight filter, after talking to respected & experienced US brewers (I'm guessing Stone & others?) - anyone any experience of this? (as distinct from entirely unfiltered bottle cond beers)
cheers
MikeMcG

[gabewilson50]

No need to worry about microorganisms when you have 32% ABV.:rolleyes:

[mic_mac]

No need to worry about microorganisms when you have 32% ABV.:rolleyes:

32%? Pah! - they laugh at their own previous watery beer, now they have a freeze-distilled IPA 'Sink The Bismark' at 41%abv :D
http://www.brewdog.com/blog-article.php?id=251

" . . . a quadruple IPA that contains four times the hops, four times the bitterness and frozen four times to create at a staggering 41% ABV."

The crass/cool unthinking/calculated decision to name this beer has caused a few ructions in the British beer world, quel surprise.
cheers
MikeMcG