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Old 09-06-2012, 12:12 AM   #31
ajdelange
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Quote:
Originally Posted by tally350z View Post
So I input what I believe is the correct information in the excel sheet and it says it is unbalanced. Have I entered the information into the spreadsheet incorrectly.
You may have made a data entry error but you have also been given bad data. Bad in the sense that not a single one of those numbers is exactly correct. There are a variety of ways in which this can happen:

1. The data comes from a lab:
1a. No laboratory measurement method produces exact results.
1b. The lab does not test for every element. For example most wouldn't test for strontium and some waters in the US have a fair amount of it.
1c. A particular test may be subject to interference. For example, the traditional way to test for calcium and magnesium responds to strontium. Thus if strontium is present the calcium and magnesium numbers will be in error.
1d. The lab may do its math wrong. For example, Ward labs calculates carbonate and bicarbonate using an old approximate method which does not return actual carbonate and bicarbonate levels.

2. The data comes from a water supplier
2a. They have a lab and all the comments from 1 apply in addition to which
2b. They usually report averages over some time period e.g. month or year.
2c. Water authorities often test for one parameter on say, Monday and
another on Thursday.

A single water sample should balance. Averages and data on samples taken at different times cannot be expected to balance.

Quote:
Originally Posted by tally350z View Post
I have recently finished a blue moon clone and it has a little bit of an off flavor, but I can pinpoint what it is. Will the high alkalinity cause certain off flavors.
High alkalinity, if not neutralized with acid, results in high mash pH. This dulls all flavors.



 
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Old 09-06-2012, 12:20 AM   #32
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The water sample was taken at the same time, however the tests were done over a period of a week, according to the lab. So I guess I shouldn't worry about them balancing out then.


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Old 09-06-2012, 01:40 PM   #33
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Tally,

Yes the values you entered into the sheet are incorrect. Most particularly, the bicarbonate content is way off. The typical profile for the City's water is below.

Tallahassee Water (all in ppm) Ca:41 Mg:10 Na:3 SO4:5 Cl:6 HCO3:168

For that Wit, the alkalinity of Tallahassee water would produce far too high a mash pH unless proper acidification was performed on the mash and sparging water. The result is a darker color than desired and a dry harshness from the hopping and possibly from tannin extraction.
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Old 09-28-2012, 11:01 PM   #34
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Alright so I am brewing a Doppel Bock this weekend and when I input my information into the Brun Water spreadsheet and it says that my mash PH is going to be too low (4.5). When I try to adjust my additions to bring up the mash PH, nothing changes. I try to add some minerals to bring up the mash ph but it doesn't change my mash ph. Can anyone offer any info on how much I should add.
Its a 5 gallon batch 8# munich malt, 3.2# Us-2row, 3.2# weyermann pale malt, 1.4# Cara 45L, .25# De-husked carafa I.
Thanks for the help..
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Old 09-29-2012, 12:45 AM   #35
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You have something input incorrectly or set wrong. There is no way that you could get a 4.5 pH with Tally water and that grist.


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