How does filtration (Birta, Pur) change water chemistry? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Brew Science > How does filtration (Birta, Pur) change water chemistry?

Reply
 
Thread Tools
Old 12-23-2012, 08:32 PM   #1
dotsoncs
Recipes 
 
Sep 2011
Earlysville, Va
Posts: 15


I was discussing water chemistry with a fellow brewer and he mentioned that he filtered (Pur, Brita, etc) his water prior to brewing but still based his water chemistry calculations off of his initial water report. He swears that it doesn't change the value of the important ions and that he only does it to remove the Fluoride from his municipal water.

I didn't know enough about the process to dispute what he said but it still doesn't sound correct. Can anyone here clarify it for me? TIA!



 
Reply With Quote
Old 12-23-2012, 08:41 PM   #2
ajdelange
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 8,934
Liked 1371 Times on 1045 Posts


Brita filters contain activated carbon, anion and cation exchange resins and colloidal silver. They will, therefore, remove much of the chlorine, chloramine and other organics as well as everything else. What comes out of a Brita is very low ion water up to the point where the exchange resins are depleted. Tiny amounts of silver are added to keep the water sanitized. At least that's the way they used to work. I haven't analyzed the water from one in years.



 
Reply With Quote
Old 12-23-2012, 09:17 PM   #3
dbsmith
Recipes 
 
Feb 2011
Seattle, Wa
Posts: 414
Liked 27 Times on 19 Posts


Quote:
Originally Posted by dotsoncs View Post
I was discussing water chemistry with a fellow brewer and he mentioned that he filtered (Pur, Brita, etc) his water prior to brewing but still based his water chemistry calculations off of his initial water report. He swears that it doesn't change the value of the important ions and that he only does it to remove the Fluoride from his municipal water.

I didn't know enough about the process to dispute what he said but it still doesn't sound correct. Can anyone here clarify it for me? TIA!
I'm not sure about Brita, but I know for sure that PUR doesn't remove fluoride. It does reduce the chloride and its byproducts, though. I use it because the ancient apartment I live in uses ancient water heaters that were made with faulty dip-tubes made out of a polypropylene compound that breaks down and gets into the water.

 
Reply With Quote
Old 12-23-2012, 09:27 PM   #4
dotsoncs
Recipes 
 
Sep 2011
Earlysville, Va
Posts: 15

Thanks for the replies. Excellent information.

Does it reduce the amounts of Calcium or Sulfates?

 
Reply With Quote
Old 12-23-2012, 09:42 PM   #5
dbsmith
Recipes 
 
Feb 2011
Seattle, Wa
Posts: 414
Liked 27 Times on 19 Posts


Quote:
Originally Posted by dotsoncs View Post
Thanks for the replies. Excellent information.

Does it reduce the amounts of Calcium or Sulfates?
I don't think so. Here is a list comparing PUR and Brita filters: http://www.purwater.com/water/why-pu...aucet-filters/

 
Reply With Quote
Old 12-23-2012, 09:54 PM   #6
histo320
Recipes 
 
Nov 2008
Manteno, IL
Posts: 1,126
Liked 44 Times on 33 Posts


I have a "Whole House" filter that is much like a Brita that at the main pipe in my crawl space. When I previously brewed I would simply use a Brita Filter to filter my water and I had 0 problems. I am wondering if my Whole House filter will be as effective.
__________________
Sideline Brewery

Drinking - Craft Brews
Primary - Surly Bender (clone)
Secondary - Zombiedust (clone)

 
Reply With Quote
Old 12-23-2012, 10:02 PM   #7
ajdelange
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 8,934
Liked 1371 Times on 1045 Posts


Yes

 
Reply With Quote
Old 12-24-2012, 01:13 AM   #8
histo320
Recipes 
 
Nov 2008
Manteno, IL
Posts: 1,126
Liked 44 Times on 33 Posts


ajdelange....man of few words.


__________________
Sideline Brewery

Drinking - Craft Brews
Primary - Surly Bender (clone)
Secondary - Zombiedust (clone)

goo-gone Likes This 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Basic water chemistry with bottled spring water Kosch All Grain & Partial Mash Brewing 6 09-12-2012 11:05 AM
Can water chemistry change? Chuginator Brew Science 16 08-27-2011 12:39 PM
Water Filtration & Beer Filtration jdlev General Beer Discussion 6 08-19-2011 11:41 PM
Mash water chemistry vs sparge water chemistry MrAverage All Grain & Partial Mash Brewing 6 03-29-2011 08:01 PM
Water filtration duffman Beginners Beer Brewing Forum 4 11-20-2005 08:58 PM


Forum Jump