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Bond Brothers 1

Water makes up more than 90 percent of beer and more than 98 percent of coffee, meaning it takes high quality water to make high quality beer and coffee. With that in mind, here are some common water quality characteristics brewers evaluate before making a new batch. This data is updated annually:

Water Quality Characteristic  Average Range (ppm*)
Alkalinity, as CaCO3 37 27-46
Bicarbonate Estimate (Alk x1.22) 45   
Calcium  8.36 5.91-9.47 
Carbonate Estimate (Alk x 0.60) 22   
Chloramines (April to February) 3.04 1.6-4.24 
Magnesium  2.82  1.93-3.22 
Potassium  No Results  Assume Negligible 
Sodium  35  32.7-37.2 
Sulfate  42  38-46 

*ppm is parts per million

For more information on Cary’s water characteristics, view the 2017 Water Quality Report and the Water Quality Testing Summary. Also keep in mind the Town of Cary usually switches from using chloramine disinfectant to chlorine in March.


2017 Water Quality Report
Water Quality Testing Summary


Rachel Monschein
Water System Laboratory Supervisor
(919) 362-5507