Home Brew Forums > Home Brewing Beer > Brew Science > Water hardness and pH
Reply
 
Thread Tools
Old 04-24-2009, 11:30 PM   #11
menschmaschine
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Delaware
Posts: 3,278
Liked 36 Times on 29 Posts

Default

Naturally soft water often has a relatively low pH, while hard water has a medium to high pH.


__________________
END TRANSMISSION
menschmaschine is offline
 
Reply With Quote
Old 04-27-2009, 03:33 PM   #12
arturo7
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
arturo7's Avatar
Recipes 
 
Join Date: Apr 2007
Location: Huntington Beach
Posts: 9,238
Liked 259 Times on 186 Posts
Likes Given: 1

Default

As I understand it...

Hardness refers to the level of dissolved solids. The higher the level, the harder the water.

The pH level tells whether the solution is an acid (lower pH) or base (higher pH) Alkalinity refers to a pH above 7, and is often used instead of the word base.


__________________
Hey, knock that shvt off. We're drinkin' here.

Reason: grammar
arturo7 is offline
 
Reply With Quote
Old 04-27-2009, 04:12 PM   #13
SpanishCastleAle
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Central Florida
Posts: 4,384
Liked 35 Times on 35 Posts

Default

Quote:
Originally Posted by arturo7 View Post
The pH level tells whether the solution is an acid (lower pH) or base (higher pH)...
This much is true.

Quote:
Alkalinity refers to a pH above 7, and is often used instead of the word base.
This is where some of the confusion stems. Alkalinity is not the same as pH. Alkalinity is the 'acid neutralizing ability' of a solution and not the pH itself. But you are correct that people use the term 'alkaline' to refer to a solution of high pH (i.e. as an opposite to the word 'acidic').
__________________
Early brewers were primarily women, mostly because it was deemed a woman's job. Mesopotamian men, of some 3,800 years ago, were obviously complete assclowns and had yet to realize the pleasure of brewing beer.- Beer Advocate
SpanishCastleAle is offline
 
Reply With Quote
Old 04-27-2009, 04:47 PM   #14
arturo7
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
arturo7's Avatar
Recipes 
 
Join Date: Apr 2007
Location: Huntington Beach
Posts: 9,238
Liked 259 Times on 186 Posts
Likes Given: 1

Default

Quote:
Originally Posted by SpanishCastleAle View Post
Alkalinity is not the same as pH. Alkalinity is the 'acid neutralizing ability' of a solution and not the pH itself.
I think we are saying the same thing.

'Alkalinity' is to 'pH' as 'fast' is to 'speed'
__________________
Hey, knock that shvt off. We're drinkin' here.
arturo7 is offline
 
Reply With Quote
Old 04-30-2009, 07:30 PM   #15
Kata
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Posts: 5
Default

Quote:
Originally Posted by boredatwork View Post
Hard and soft water refer to water hardness. The connection you are referring to is pH and Alkalinity, not Hardness. Alkalinity is a pH buffer not Hardness. Hardness and pH are two independent things.
Right, but hard water often has alkalinity, no? I admit I have not been brewing for long, but I have a koi pond and often deal with water quality issues. From what I understand, more often than not hard tap water is due to calcium carbonates etc, which do impart alkalinity. I guess my question is, what accounts for hard tap water that doesn't have alkalinity?


Kata is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with water hardness adjustment Hugh_Jass General Beer Discussion 1 10-09-2009 03:19 PM
What is the optimum ppm or water hardness humann_brewing General Techniques 3 01-28-2009 04:34 AM
water hardness ohad Recipes/Ingredients 5 03-28-2008 08:02 PM
water hardness question 40ozOLDe Beginners Beer Brewing Forum 1 04-29-2007 09:34 PM
water hardness & gypsum Bills Brew Recipes/Ingredients 3 02-18-2006 09:56 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS