Need some input with a consistent lower than projected PH. my RO water has PH of 5.5, not abnormal and even though its acidic, it should not have any buffering capacity (TDS 12 today).
Brunwater has predicted my mash to be 5.41, and it came out 5.2. two PH meters both calibrated and both reading the same. PH strip used to verify and it also read around 5.2. been having this issue for 4 months or so...always coming in .2 or so lower than projected with brunwater regardless of the brew recipe. any ideas welcome...getting frustrated.
here's todays recipe:
grain cat lbs. ounce Lovi
munich light base 3.0 0.0 5
pilsner base 4.0 0.0 2
caramunich crystal 0.0 8.0 47
biscuit crystal 0.0 3.0 23
melanoiden roast 0.0 3.0 30
munich base 4.0 0.0 10
water to grain ratio: 1.77
est color: 10.6
mash water 5.25 gal: .8 gypsum, 2.6 epsom, 2.6 cal chloride
sparge water 4.25 gal: .6 gypsum, 2.1 epsom, 2.1 cal chloride
amber balanced profile : 46 calcium, 13 mag, 8 sodium, 74.7 sulfate, 67.8 chloride
projected PH 5.41
actual PH 5.2