Brisbane Water Analysis 2022

December 3, 2022 / Comments (0)

BABBs Blog Brewing Tips

The table below table shows the full results of laboratory water analyses commissioned by BABBs in November 2022. Several areas of Brisbane are represented, but be aware that there is some variation in sources over time. These samples should definitely get you in the ballpark.

A reminder that Brisbane water is treated with both Chlorine and Chloramine. Chlorine will evaporate or boil of quite easily. Chloramine must be either neutralized with Campden or filtered by with a carbon filter.

If not dealt with chloramines will react with phenols in malt during the mash to produce chlorophenols. These are detectable as a plastic-like taste in just a few parts-per-billion in finished beer! Think band-aid plastic, medicinal, or listerine mouthwash flavour and aroma.

Too many numbers? Here are the numbers you need for your software if you’re brewing anywhere in the central and south Brisbane areas (averages):

  • Calcium (Ca) 29
  • Magnesium (Mg) 15
  • Sodium (Na) 47
  • Potassium (K) 3
  • Iron (Fe) 0
  • Bicarbonate (HC03) 83.5
  • Carbonate (C03) 0
  • Sulphate (S04) 51
  • Chloride (Cl) 64.5

Many of our members use and recommend the Bru’N Water water chemistry calculator, and Brewfather also incorporates advanced water calculations.

Sample NameYerongaShailer ParkCamp HillStafford MidSalisburyThornlandsRO
Units(250L Hot water heater)
pH ValuepH Unit8.268.1988.18.248.126.99
Electrical Conductivity @ 25°CµS/cm55053354836053528842
Total Hardness as CaCO3mg/L1541521528214691<1
Calcium Hardness as CaCO3mg/L808282458062<1
Magnesium Hardness as CaCO3mg/L747070376629<1
Residual Alkalimeq/L-1.2-1.4-1.2-0.5-0.8-0.40.2
Hydroxide Alkalinity as CaCO3mg/L<1<1<1<1<1<1<1
Carbonate Alkalinity as CaCO3mg/L<1<1<1<1<1<1<1
Bicarbonate Alkalinity as CaCO3mg/L94829257103699
Total Alkalinity as CaCO3mg/L94829257103699
Sulfate as SO4 - Turbidimetricmg/L555253465322<1
Chloridemg/L7772763971337
Calciummg/L323333183225<1
Magnesiummg/L1817179167<1
Sodiummg/L5153513550277
Potassiummg/L333331<1
Aluminiummg/L0.030.020.020.020.020.01<0.01
Coppermg/L0.0740.0370.0510.1150.0420.020.011
Manganesemg/L0.0020.0020.0010.0010.0010.002<0.001
Zincmg/L<0.0050.010.0180.0110.0060.0080.009
Ironmg/L<0.05<0.05<0.05<0.05<0.05<0.05<0.05
Total Anionsmeq/L5.24.755.083.25.162.770.38
Total Cationsmeq/L5.375.435.343.245.163.020.3
Ionic Balance%1.686.642.450.64<0.01

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