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Kapiti Water Analysis Reports

Understanding water chemistry in brewing provides brewers with another tool to elevate their beers to the next level. Through the careful use of minerals and acids brewers are able to create a water profile beneficial to the beer they are brewing whilst ensuring the appropriate mash pH is achieved, promoting optimal enzyme activity and the full conversion of starch.

Bru'n Water is a great place to learn more about water chemistry in brewing and how to go about making adjustments to your brewing water. 

The Brewers Friend Advanced Water Chemistry Calculator is another great resource when making adjustments to your brewing water.

Below is the mineral content of the different water sources on the Kapiti Coast.

February 2018

Paraparaumu Reticulation

g/m3
Chloride 20.40
Sulphate 6.08
Calcium 7.72
Magnesium 1.60
Sodium 11.7
pH 7.8
Total hardness (as CaCO3/m3) 26
Total dissolved solids 77
Estimated Bicarbonate 31.5
Estimated Carbonate 0.1

 Supplies Paraparaumu, Raumati, Waikanae, Pekapeka.

 

Paekakariki Reticulation

g/m3
Chloride 43.3
Sulphate 10.9
Calcium 13.6
Magnesium 4.31
Sodium 27.2
pH 7.2
Total hardness (as CaCO3/m3) 52
Total dissolved solids 158
Estimated Bicarbonate 63.3
Estimated Carbonate 0.0

 Supplies Paekakariki.

 

Hautere Reticulation

g/m3
Chloride 8.57
Sulphate 3.43
Calcium 6.01
Magnesium 1.09
Sodium 19.6
pH 7.6
Total hardness (as CaCO3/m3) 20
Total dissolved solids 87
Estimated Bicarbonate 24.3
Estimated Carbonate 0.0

 Supplies Te Horo and Hautere.

 

Rangiuru plant out

g/m3
Chloride 9.23
Sulphate 4.31
Calcium 6.79
Magnesium 1.68
Sodium 17.7
pH 7.7
Total hardness (as CaCO3/m3) 24
Total dissolved solids 75
Estimated Bicarbonate 29.1
Estimated Carbonate 0.1

 Water from the Rangiuru and Tasman plants are mixed before supplying Otaki. The ratio of the mix varies.

 

Tasman plant out

g/m3
Chloride 15.40
Sulphate 7.52
Calcium 12.10
Magnesium 3.32
Sodium 38.50
pH 7.7
Total hardness (as CaCO3/m3) 44
Total dissolved solids 179
Estimated Bicarbonate 53.4
Estimated Carbonate 0.1

 Water from the Rangiuru and Tasman plants are mixed before supplying Otaki. The ratio of the mix varies.

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