Tpost704
Active Member
I am planning a 5 gallon Zombie Dust clone partial mash (recipe below) and am a bit confused by the alkalinity of my water. I got my ward labs results back (also below) and have been playing around with it in Bru'n Water. I understand that my alkalinity is high in my source water. I figured acidifcation was going to be needed for my sparge water, but at 2 qts of water per lb of grain, my estimated mash ph is 5.32 without and other adjustments. I can't imagine that the alkalinity of the mash doesn't need adjustment seeing as it is so high. I am just getting into water chemistry so i'm just trying to get a grip on everything before I brew. Is there something I should be doing to my mash do reduce alkalinity even though I can hit an acceptable ph with just grain? I attached my Bru'n Water file below for reference. Thanks for the input!
Recipe
6lb extra light DME
1lb American - Munich - light 10L
0.5lb German CaraFoam
0.5lb American Caramel/Crystal 60L
0.5lb German - Melanoidin
1 oz Citra First Wort
1 oz Citra 15 min
1 oz Citra 10 min
1 oz Citra 5 min
1 oz Citra 1 min
3 oz Citra Dry Hop 7 Days
English Ale Yeast s-04
Water Report
pH 7.5
Total Dissolved Solids (TDS) Est, ppm 370
Electrical Conductivity, mmho/cm 0.62
Cations / Anions, me/L / 6.7 7.0
ppm
Sodium, Na 11
Potassium, K 3
Calcium, Ca 83
Magnesium, Mg 28
Total Hardness, CaCO3 324
Nitrate, NO3-N 2.8 (SAFE)
Sulfate, SO4-S 9
Chloride, Cl 16
Carbonate, CO3 < 1.0
Bicarbonate, HCO3 336
Total Alkalinity, CaCO3 277
Total Phosphorus, P < 0.01
Total Iron, Fe < 0.01 "<" - Not Detected / Below Detection Limit
Recipe
6lb extra light DME
1lb American - Munich - light 10L
0.5lb German CaraFoam
0.5lb American Caramel/Crystal 60L
0.5lb German - Melanoidin
1 oz Citra First Wort
1 oz Citra 15 min
1 oz Citra 10 min
1 oz Citra 5 min
1 oz Citra 1 min
3 oz Citra Dry Hop 7 Days
English Ale Yeast s-04
Water Report
pH 7.5
Total Dissolved Solids (TDS) Est, ppm 370
Electrical Conductivity, mmho/cm 0.62
Cations / Anions, me/L / 6.7 7.0
ppm
Sodium, Na 11
Potassium, K 3
Calcium, Ca 83
Magnesium, Mg 28
Total Hardness, CaCO3 324
Nitrate, NO3-N 2.8 (SAFE)
Sulfate, SO4-S 9
Chloride, Cl 16
Carbonate, CO3 < 1.0
Bicarbonate, HCO3 336
Total Alkalinity, CaCO3 277
Total Phosphorus, P < 0.01
Total Iron, Fe < 0.01 "<" - Not Detected / Below Detection Limit