Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > Brew Science > PH and Water Adjustments
Reply
 
LinkBack Thread Tools
Old 02-15-2010, 01:06 PM   #1
Pumpkinman906
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Posts: 66
Liked 2 Times on 2 Posts
Likes Given: 8

Default PH and Water Adjustments

I have a question that I hope others can offer some input on. I am fairly clear on making water adjustments after listening to a series of podcasts about 5 times, however yesterday I realized that I may have a process flaw. We were making two batches of Irish Red yesterday and I had worked up the water adjustment according to the spreadsheets. Our water PH is 8.3. Now my understanding has always been that I want my hot liquor PH at around 5.8 before mashing in, so, I added my salt additions into the first batch and the PH only got down to 7.0. I had a really tough time getting the PH down to 5.8 using Lactic acid after adding the salts. During the second batch, I added 1.3 ml of Lactic to the water first and the PH dropped to 5.8, however, as soon as I added the mash salt additions, the PH shot back up to 7.0. My question is should I be adding the salts to the water based on the intended SRM and forget the PH as the whole idea is that the malt will buffer the PH or is my method above sound but my additions are screwed up. Any thoughts would be appreciated.

__________________
Pumpkinman906 is online now
 
Reply With Quote Quick reply to this message
Old 02-15-2010, 01:52 PM   #2
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,195
Liked 1042 Times on 696 Posts
Likes Given: 28

Default

Don't worry about the water pH. It's all about the predicted mash pH based on SRM and all the other data in your source water. Additions go into the mash directly, not the strike water. Measure the pH of the mash after 5 minutes, then correct with acid if necessary.

__________________
BrewHardware.com has a new website. Please check it out and let me know what you think!
New Stainless Steel Heating Elements are IN!
Did you know we are now a full service homebrew shop selling malt, hops, yeast (Wyeast), etc?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 02-15-2010, 06:55 PM   #3
Pumpkinman906
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Posts: 66
Liked 2 Times on 2 Posts
Likes Given: 8

Default

Wouldn't adding Lactic for any further PH adjustments in the mash require stirring, therefore disturbing the grain bed? If that's ok then no problem. I was always taught not to disturb the grain bed at all, hence the question.

__________________
Pumpkinman906 is online now
 
Reply With Quote Quick reply to this message
Old 02-15-2010, 08:45 PM   #4
jmo88
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Location: Seattle
Posts: 1,401
Liked 19 Times on 14 Posts
Likes Given: 9

Default

Quote:
Originally Posted by Pumpkinman906 View Post
Wouldn't adding Lactic for any further PH adjustments in the mash require stirring, therefore disturbing the grain bed? If that's ok then no problem. I was always taught not to disturb the grain bed at all, hence the question.
The grain bed will be stabilized after the mash and vorlauf. You don't want to stir after the vorlauf.
__________________
(~):} Just a little Furthur (~):}
jmo88 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
beertools pro - water adjustments kcinpdx Brewing Software 1 03-13-2010 09:39 PM
Water adjustments for my IPA klamz All Grain & Partial Mash Brewing 11 12-08-2009 10:00 PM
Do I have the hang of water adjustments yet? wildwest450 Brew Science 9 10-01-2009 09:06 PM
Water Adjustments jjp36 All Grain & Partial Mash Brewing 10 09-28-2009 05:33 PM
brewing water adjustments jeepmarine71 Brew Science 7 06-10-2009 06:54 PM



Newest Threads

LATEST SPONSOR DEALS