I have entered and recorded 20-30% discrepancies among several popular water chemistry calculators when they report Calcium and Chloride ppm. I was wondering if anyone else has noticed the same, or if there is a known reason why the discrepancies exist.
Using a base NE IPA recipe consisting of 21 pounds 2-Row 2L [US], 2 pounds Torrified Wheat 2L [US] mashed with 15 gallons of 100% RO water. To the RO water 7.5g gypsum, 13.5g calcium chloride, 1g Epsom salt and 1ml 88% lactic acid were added.
Brewers Friend, MpH Water Calculator v3, EZ watercalculator v3 and Kaiser water calculator all reported Calcium as 96ppm and Chloride as 115ppm. The outlier in the group was Bru'n Water reporting Calcium as 117ppm and Chloride as 152ppm. The resulting 20% difference in reported Calcium and 28% difference in Chloride levels seems significant and has me baffled.
Using a base NE IPA recipe consisting of 21 pounds 2-Row 2L [US], 2 pounds Torrified Wheat 2L [US] mashed with 15 gallons of 100% RO water. To the RO water 7.5g gypsum, 13.5g calcium chloride, 1g Epsom salt and 1ml 88% lactic acid were added.
Brewers Friend, MpH Water Calculator v3, EZ watercalculator v3 and Kaiser water calculator all reported Calcium as 96ppm and Chloride as 115ppm. The outlier in the group was Bru'n Water reporting Calcium as 117ppm and Chloride as 152ppm. The resulting 20% difference in reported Calcium and 28% difference in Chloride levels seems significant and has me baffled.