Beerfiltering Experiment

[Zwickel]

Hello brewmates,

as the topic says, Ive made an experiment to filter my beer, not from keg to keg,
but from keg to tab.

I took a Pall filter with a pore size of 0,2m as shown here:

To see how efficient the filter works, I took my youngest beer, very cloudy yet.
as you can see, there is a big difference between in- and outlet.

In the glass it looks like that:

It worked very well til the 5. glass of beer, then I had to rise the CO2 pressure little by little, with every glas of beer about 10kPa more.
I terminated the experiment when the pressure reached 300kPa, because I afraid the filter will burst.
In the end I got about 15 glasses of very clear filtered beer.

here some datas of the filter: http://www.pall.com/variants/pdf/pdf/6427.pdf

The only thing Id lik to know, is it possible to filter the beer just on the way from keg to tab?
maybe with a bigger pore size? what about a filter with 1m?
has anyone made a similar test?

Cheers

 

[Pumpy]

Great idea Zwickle that would save extra handling of the beer to filter it in line from the keg to the Tab.

It certainly appears possible as you have proven, just the longevity of the filter needs to be overcome . but I bet you are close to overcoming that .

I have only been filtering my beer with a 0.34 m absolute pleated filter and it works great .mine is not in the line .

Pumpy

 

[Zwickel]

Hello Pumpy,

thats quite interesting to me. Doesnt your beer lose all the CO2 while transferred to another Keg?
how much pressure do you need and do you have to increase the pressure to the end?

have you ever tried to use a pump for transferring? for example equal CO2 pressure in both kegs, transferring by pump?

My experiments will be continued.

Cheers

Great idea Zwickle that would save extra handling of the beer to filter it in line from the keg to the Tab.

It certainly appears possible as you have proven, just the longevity of the filter needs to be overcome . but I bet you are close to overcoming that .

I have only been filtering my beer with a 0.34 m absolute pleated filter and it works great .mine is not in the line .

Pumpy

[post="126390"][/post]​

 

[Pumpy]

Zwickle , I am filtering after the primary fermentation

I transfer the beer from the primary fermenter in a silicone tube into the first keg and just using the Co2 to push it at the lowest pressure possible through the filter in the housing into the final keg ,I soak the filter overnigt sodium percarbonate and it comes up as new rinse it and allow to dry out for use next time .

But I like your way better if it can be perfected .

I have not used equal pressure kegs to transfer into will have a go next time .

Pumpy

 

[Zwickel]

ahhhh, I see...

but if you are using a 0,34m filter, you will lose all the yeast.
What about your secondary fermentation then?
The size of yeast cells are about 3-5m.
After filtration there is no more yeast in the beer.

My idea has been, to use a inline filter to the tab, because there would be no loss of gas (CO2).
The gas must remain in the beer til the outlet of the tab, there is no way out.

The experiment was made with very cloudy beer, Im convinced, if I have used a matured beer, the filter would last much longer.

The problem is, there is a limit in gas pressure and the flow of beer drops as the filter started clogging.

Another idea I have is to use a three step filter at 10, 5 and 1m.

...there is a lot to do...


will be continued...

 

[Pumpy]

Zwickle,

I am only making English Bitter mainly ,if the beer is fermented out in Primary the main purpose of secondary is to get the beer to sediment and clear ,so I am filtering at that stage, I get it into the keg quicker and does not tie up kegs or messing around risking oxidising the beer and handling those glass carboys .

So far it works nicely for and I like to present clear beer .

Pumpy

 

[Zwickel]

Thank you Pumpy for the informations.

I didnt wanna get you on your nerves


I need the filter only for my Pils and Corona Clone.
Weizenbeer (Hefeweizen) must be cloudy.

may there always be a few inches beer in your glass

 

[Pumpy]

Zwickle ,

Thats Ok Zwickle ,I am happy

I like reading your posts I always learn something and you always share your ideas I like that .

Some keep the craft to themselves .

Pumpy

 

[Ross]

Zwickel,

I filter all my beers (exceptions for wheat etc).
I investigated many forms of filtering for a long period. The result was that the best performance/value system was a 10" clear cased canister (with relief valve in lid) using a 1 micron "absolute" pleated cartridge. This system will leave you a nice clear beer, but like a beer that's been in Cold Conditioning for a long period, there is still enough yeast left to reprime if you wish. Obviously the best time to filter if kegging, is between secondary & the keg; but if you're priming in the keg & want to serve direct, I'd recommend switching to a 5" canister with the same configeration, since a pleated cartridge has a very large surface area & is easily cleaned by soaking overnight with a teaspoon of sodium percarbonate (napisan).
The only problem i forsee, is that the action of going through the filter, is likely to release CO2 into your lines.

hope this helps...

Cheers & clear beers - Ross

 

[Zwickel]

Hi Ross, Hi Pumpy, Hi Brewmates,

it has been only an experiment, just to see/taste the difference between filtered and unfiltered beer particularly it is all about the same beer.

You have convinced me.

In accordance with your experience - I do not have to make the same research - I ordered today that filter with a 0,3m reusable ceramic filter:

http://cgi.ebay.de/Keramik-Wasserfilter-0-...1QQcmdZViewItem

anyway, one can buy any kind of filter cardridge.

So, Im very eager to get my own filtered beer, no more Zwickel beer

 

[mika]

Zwickel beer ?? :blink:

Obviously there's more than one definition of Zwickel, as this is what google returned for me

1. A Zwickel designates a piece of material, which is inserted into a seam, in order to give the carrier of the article of clothing more stretcher comfort and freedom of movement. While in former times Zwickel were used e.g. in the lower arm range with dresses or jackets, one finds them today hardly still, since further cutting forces and flexible materials permit sufficient freedom of movement. Today one finds this employment particularly at underwear and strumpfhosen.

That'd be one interesting beer h34r:

Hahahaha :beer:

 

[Zwickel]

hahahaha

its the same meaning in German as well.

but another explanation I posted here, post #10:

http://www.aussiehomebrewer.com/forum/A_Ge..._Iii-t7366.html

 

[Pumpy]

Hi Brewmates,

it has been only an experiment, just to see/taste the difference between filtered and unfiltered beer particularly it is all about the same beer.

You have convinced me.

In accordance with your experience - I do not have to make the same research - I ordered today that filter with a 0,3m reusable ceramic filter:

http://cgi.ebay.de/Keramik-Wasserfilter-0-...1QQcmdZViewItem

anyway, one can buy any kind of filter cardridge.

So, Im very eager to get my own filtered beer, no more Zwickel beer

[post="126596"][/post]​

Zwickle let us know how you go with you reusable ceramic filter , how do you clean it ?

Pumpy

 

[Zwickel]

Zwickle let us know how you go with you reusable ceramic filter , how do you clean it ?

Hi Pumpy,

I dont know yet, there is written, one can wash the filter, so I will see.
anyway, I ordered several different filter cartridges (cheap one) with it.

I will do a test again wit different filter and different pore sizes.

I think, the optimum will be around 1m.

mostlly the cheap filters are depht filters, that means the pore size depends on the pressure, the more pressure, the bigger the pore size.
That kind of filter you can not wash and use again.

good and expensive filters are planar filters, they have a certain unchangeble pore size in one layer.
So the ceramic filter is one of that.

Hopefully I can remove all the crud after using it.

anyway, Ill report the ongoing development.

Cheers

 

[Pumpy]

It may be a cosmetic thing but it is nice to have a clear beer ,best of luck Zwickle I sure your beer will taste nice either way

Pumpy

 

[Zwickel]

Pumpy,

yes your right.

I dont make this effort because I love clear beer more then others.
Even my wife said the cloudy beer taste better to her.
Friend of mine says he cannot get along with yeast in the beer.

so.... I wanna be complete, that means wanna have some variations of beer.

Some people like it clear, some other people like it more cloudy, one cannot argue about taste.

So I wanna have both on tab.

....and anyway, isnt it a nice hobby, can doing handicrafts as you like?...til you get thirsty...and then you have a solution

 

[vlbaby]

pumpy,

does your 10" filter cartridge setup produce a bright beer like the one in zwickles photos?

I think i read somewhere that the results of filtering are comparable to a long cold conditioning. Is this true?
I would like to filter my beers to a higher level than that of cold conditioning can offer. The photo that zwickle showed looks like a commercial quality bright beer. If I could do that i'd be wrapped!

vl.

 

[Pumpy]

pumpy,

does your 10" filter cartridge setup produce a bright beer like the one in zwickles photos?

I think i read somewhere that the results of filtering are comparable to a long cold conditioning. Is this true?
I would like to filter my beers to a higher level than that of cold conditioning can offer. The photo that zwickle showed looks like a commercial quality bright beer. If I could do that i'd be wrapped!

vl.

[post="126634"][/post]​

Yes I would say it does ,however my beer was not quite as cloudy as Zwickles , I copied the 'Ross method of filtering beer'
I am very pleased with the results my missus was my biggest critic of the clarity of the beer , the benefits to me as out of the primary into the keg no secondary .No going back for me

Pumpy

 

[mje1980]

Ross, got any pics???

 

[Batz]

I copied the 'Ross method of filtering beer'

Pumpy

Jayse !!

Now look what's what happening !! :blink: :blink:

Batz