I have been getting an off flavor in some of my all grain brews and I am trying to nail down the possible culprits. The off flavor is more of an after taste, and I would describe it as kind of bitter but not hoppy bitter. It really comes through most when you burp and I may even call it astringent or burnt. None of those terms quite describe it perfectly though. The taste is also detectable by smell (plasticy maybe). Here is my brief brewing history.
After my first 2 batches I found out one step was not a sanitizer, so I started using star san on everything post boil. I am very thorough with cleaning all equipment using the one step and then after rinsing, leaving everything wet with star san.
My 3rd batch I decided to start using a brita filter to remove chlorine (my local utility does not use chloramimine). I allow the water to very slowly trickle from the bottling bucket through a brita to an empty bucket over the course of many hours (4-5) before I heat strike water. I am now wondering if maybe the brita is not removing the chlorine very well.
I am using a bucket with water and frozen jugs during the first few days of fermentation to keep temps reasonable (65ish normally).
Batches that contained the off flavor:
1. Brown Ale (no brita)
4. Bee Cave Haus Pale Ale
6. 10lb Munich/2lb Vienna Hopped w/Tettnang
Batches that did not contain the off flavor:
2. Brewers Best Extract IPA (no brita)
3. Hefeweizen
5. Saison
My ward labs water report (Berea Ohio)
pH - 9.0
Total Dissolved Solids (TDS) Est, ppm - 341
Electrical Conductivity, mmho/cm - 0.57
Cations / Anions, me/L - 5.4 / 5.3
Sodium, Na - 70
Potassium, K - 5
Calcium, Ca - 29
Magnesium, Mg - 10
Total Hardness, CaCO3 - 114
Nitrate, NO3-N - 2.5 (SAFE)
Sulfate, SO4-S - 23
Chloride, Cl - 106
Carbonate, CO3 - 6
Bicarbonate, HCO3 - 28
Total Alkalinity, CaCO3 - 33
Total Phosphorus, P - 0.29
Total Iron, Fe - 0.02
Sorry for the long post, just wanted to be thorough. Appreciate any advice.
After my first 2 batches I found out one step was not a sanitizer, so I started using star san on everything post boil. I am very thorough with cleaning all equipment using the one step and then after rinsing, leaving everything wet with star san.
My 3rd batch I decided to start using a brita filter to remove chlorine (my local utility does not use chloramimine). I allow the water to very slowly trickle from the bottling bucket through a brita to an empty bucket over the course of many hours (4-5) before I heat strike water. I am now wondering if maybe the brita is not removing the chlorine very well.
I am using a bucket with water and frozen jugs during the first few days of fermentation to keep temps reasonable (65ish normally).
Batches that contained the off flavor:
1. Brown Ale (no brita)
4. Bee Cave Haus Pale Ale
6. 10lb Munich/2lb Vienna Hopped w/Tettnang
Batches that did not contain the off flavor:
2. Brewers Best Extract IPA (no brita)
3. Hefeweizen
5. Saison
My ward labs water report (Berea Ohio)
pH - 9.0
Total Dissolved Solids (TDS) Est, ppm - 341
Electrical Conductivity, mmho/cm - 0.57
Cations / Anions, me/L - 5.4 / 5.3
Sodium, Na - 70
Potassium, K - 5
Calcium, Ca - 29
Magnesium, Mg - 10
Total Hardness, CaCO3 - 114
Nitrate, NO3-N - 2.5 (SAFE)
Sulfate, SO4-S - 23
Chloride, Cl - 106
Carbonate, CO3 - 6
Bicarbonate, HCO3 - 28
Total Alkalinity, CaCO3 - 33
Total Phosphorus, P - 0.29
Total Iron, Fe - 0.02
Sorry for the long post, just wanted to be thorough. Appreciate any advice.