Beer filter

[topgear]

Hi guys has anyone used one of these:
http://cgi.ebay.co.uk/10-HOME-BEER-BREW ... 1e5e217965


I have a bitter in a corny that’s a tad cloudy any info appreciated :thumb:

 

[tazuk]

its a standard ro unit with 5 micron filter by the looks of it have a look on ebay ro unit ro filter etc also how many time would you be able to use filter once used as if used for fish tanks filter membrain has to be keep wet all the time lets see wot every body else says ??????????????????????????????????????? :thumb:

 

[Moley]

Interesting, that page says filter can only be used once but is good for up to 10 gallons.

Anyone know if there's a UK stockist?

 

[tazuk]

i got one of theses http://cgi.ebay.co.uk/WINE-MAKING-BOXED ... 588e39c2c7 off car boot with loads of gear for 5 squid this morn can you use those round filters wot use to use for filter machines :

 

[Moley]

You can still buy pads for the old Boot's filters, although slightly smaller than the Vinbrite I believe Harris manufacture both sizes. www.shop4homebrew.co.uk

You wouldn't use one of those for beer though because of oxidation issues.

I quite like the idea of force filtering beer from one keg to another under CO2 pressure. Time alone usually does a plenty good enough job but there can still be issues with disturbing sediment if transporting full kegs.

 

[Aleman]

5 microns is just not small enough, as it will let yeast through . . . . unless its a 5 micron absolute filter (at that price I doubt it) . . . Ideally you need to look at a 1 micron absolute filter to remove most yeast and sediment . . . . . and that will also strip out a lot of the 'guts' of the beer as well.

 

[Vossy1]

You'd be better looking for the reasons as to it's cloudyness and curing them at source IMO

 

[gsidford]

I have just been given one very similar from a friend who works in the filter industry and has filters of both 1 micron and 0.45 micron. I am advised that these can be replaced for something in the region of £1 something.

However, one issue I can see is the amount of liquid lost given that these are not small volumes when put against a 23l batch size. Not convinced I do need to be filtering this finely (or at all given my last few AG brews), but it is something free to have a play with.

 

[Aleman]

The amount of liquid lost is actually quite small . . .especially when you realise that you are pushing the beer under CO2 from keg to keg . . . plus Vossys silcone tubing pushes over the central outlet quite nicely.

Nominal filters can be had quite cheaply for around a pound or so if buying in 10's

Absolute Grade filters are flipping expensive . . .10-15 times as much as the same grade of nominal filter.

A nominal filter stops 95% of particles the stated size or larger from passing . . .an absolute grade filter stops 99.9% of particles of the stated size of larger.

Generally in a brewery using filtration they employ serial filtration. . . . 10micron . . .1 micron and 0.1 micron . . .in 20 Inch cartridge filters (IIRC its around 200 quid for a set of filters), and they fill the cartridges with peracetic acid between filtration uses. . . . Each filter housing has a pressure gauge on it that once the pressure inside starts to rise lets you know when to change the cartridge.

 

[unclepumble]

also remember if you do filter so fine and strip out the yeast you will need to force carbonate if bottling.

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