Which is the better filter? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Brew Science > Which is the better filter?

Reply
 
Thread Tools
Old 03-13-2011, 04:52 PM   #1
Teromous
Beer Gnome
HBT_LIFETIMESUPPORTER.png
 
Teromous's Avatar
Recipes 
 
Sep 2009
Virginia Beach, VA
Posts: 2,960
Liked 560 Times on 306 Posts



I pose this question to those of you who are water experts. The water where I live is pretty bad so I always filter it, even if it's just for drinking. I've been using a Britta filter for my homebrews so I could use clean water, and it looks like it's just a charcoal filter. I also have a cartridge filter that I use to filter out apple particles when I make cider. I noticed they have sterile 0.5 micron filters that they sell. Which do you think would filter out water better?

 
Reply With Quote
Old 03-13-2011, 06:33 PM   #2
ajdelange
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 9,045
Liked 1404 Times on 1071 Posts


The Brita may look like just a charcoal filter but besides the carbon it also contains ion exchange resins that pull out cations and replace them with H+ and anions and replace them with OH-. Thus it removes minerals from your water as well as anything organic, chloramine... I believe they also pass the water over metallic silver to stabilize it against bacteria. The particle filters, conversely, remove only particles. They do not change the chemical composition of the water.

 
Reply With Quote
Old 03-13-2011, 07:09 PM   #3
Teromous
Beer Gnome
HBT_LIFETIMESUPPORTER.png
 
Teromous's Avatar
Recipes 
 
Sep 2009
Virginia Beach, VA
Posts: 2,960
Liked 560 Times on 306 Posts


Ok cool, thanks for the info! That was very helpful.

 
Reply With Quote
Old 03-14-2011, 12:34 AM   #4
theredben
Recipes 
 
Dec 2010
Langley, BC
Posts: 934
Liked 24 Times on 23 Posts


ajdelange: Brita filters do not do any of that. They are a simple charcoal filter followed by a 1-2 micron filter.

http://www.brita.ca/

To the OP, what are you trying to filter out?

 
Reply With Quote
Old 03-14-2011, 03:13 AM   #5
ajdelange
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 9,045
Liked 1404 Times on 1071 Posts


No kidding? When did they change the design?

 
Reply With Quote
Old 03-14-2011, 12:28 PM   #6
mabrungard
HBT_LIFETIMESUPPORTER.png
 
mabrungard's Avatar
Recipes 
 
Feb 2011
Carmel, IN
Posts: 4,116
Liked 600 Times on 464 Posts


I could have sworn that I just saw that Brita included the ion exchange components AJ mentioned. Maybe they pulled them since they increase the cost?
__________________
Martin B
Carmel, IN
BJCP National
Foam Blowers of Indiana (FBI)

Brewing Water Information at:
https://sites.google.com/site/brunwater/

Like Bru'n Water on Facebook for occasional discussions on brewing water and Bru'n Water
https://www.facebook.com/pages/Brun-...?ref=bookmarks

 
Reply With Quote
Old 03-14-2011, 05:50 PM   #7
ajdelange
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 9,045
Liked 1404 Times on 1071 Posts


Well they certainly did the ion exchange when I tested them but that was years ago. The world has become a crazy place. Some bureaucrat may have decided the colloidal silver was too toxic and a clever marketing department might have figured out that you can sell as many units based on hype as you can with ion exchange. I remember when they shipped with 2 teabags so you could make a cup of tea with your tap water and your tap water softened by the Brita.

I figured maybe they had swapped out the general exchange resins for KDF but a recent review I found definitely mentions resins. I'm sure the appeal now is that they remove harmfull stuff (like heavy metals) but their website certainly doesn't say anything about softening - or really much about anything other than that water lubricates your organs. I lubricate my organs with beer as does, I imagine, most of the readership of this forum.

 
Reply With Quote
Old 03-15-2011, 01:18 AM   #8
theredben
Recipes 
 
Dec 2010
Langley, BC
Posts: 934
Liked 24 Times on 23 Posts


One of the problems I have always had with Brita filters is that they never seem to specify what is actually in their filters. I can understand not wanting to confuse the public with information they do not want/need, but it would be nice to be able to compare what features are available from different companies.

I guess when you have a monopoly on the market you can do whatever feel like.

 
Reply With Quote
Old 03-27-2011, 06:01 PM   #9
Wynne-R
Recipes 
 
Aug 2009
Texas
Posts: 976
Liked 124 Times on 79 Posts


Britta and other cheapo filters are using the cheap razor/ expensive blades model. The filter medium is GAC, granulated activated charcoal. They are also known as CTO filters for chlorine taste odor. They do a good job, but the filter has to be replaced every few hundred gallons. Ridiculous.

The way to go is to get something that uses standard 9.75 x 2.5" cartridges. $21 for 5000 gallons. Carbon block does a better job than GAC because it won’t tunnel. It doesn’t remove the minerals like distilled or RO.

They recommend replacing the filter annually, but mine is years old and still going strong. The water here has a strong algae taste most of the year, if the filter quit working I’d know it. Practically everybody uses bottled water here, but filtered water is the same thing for less than a penny/gallon.

The best deal I have found is just up the road in Denton TX. Nice people and they know what they’re doing. $77 for a countertop model, they pay the shipping.
http://www.pwgazette.com/model77.htm

 
Reply With Quote
Old 03-27-2011, 06:04 PM   #10
Wynne-R
Recipes 
 
Aug 2009
Texas
Posts: 976
Liked 124 Times on 79 Posts


Britta and other cheapo filters are using the cheap razor/ expensive blades model. The filter medium is GAC, granulated activated charcoal. They are also known as CTO filters for chlorine taste odor. They do a good job, but the filter has to be replaced every few hundred gallons. Ridiculous.

The way to go is to get something that uses standard 9.75 x 2.5" cartridges. $21 for 5000 gallons. Carbon block does a better job than GAC because it won’t tunnel. It doesn’t remove the minerals like distilled or RO.

They recommend replacing the filter annually, but mine is years old and still going strong. The water here has a strong algae taste most of the year, if the filter quit working I’d know it. Practically everybody uses bottled water here, but filtered water is the same thing for less than a penny/gallon.

The best deal I have found is just up the road in Denton TX. Nice people and they know what they’re doing. $77 for a countertop model, they pay the shipping.
http://www.pwgazette.com/model77.htm

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Water test results with old and new water filter nilo Brew Science 11 01-01-2014 10:26 PM
Water filter deal BrewSpook Brew Science 7 12-26-2010 09:02 PM
Well Water Filter bnut Brew Science 10 09-15-2010 07:01 PM
Water from water filter.. Cazamodo Brew Science 8 09-08-2010 02:25 PM
RO Filter performance jdieter Brew Science 3 08-17-2010 10:26 PM


Forum Jump