strongarm
Well-Known Member
Im working on my next Russian Imperial Stout and will be doing a BIAB. I have found that my Stouts have a little bite to them
some astringency
not overwhelming but some and Im looking for a smoother flavor profile.
Here is my recipe, any suggestions?
Imperial Stout
Type: All Grain BIAB
Batch Size (fermenter): 6.00 gal
Boil Time: 60 min
Equipment: 15gal boil pot, counterflow chiller
Brewhouse Efficiency: 72.00 %
Fermentation: Ale, Single Stage,Bourbon Barrel 2nd stage
Ingredients
Ingredients
Amt Name Type # %/IBU
27 lbs Pale Malt, Maris Otter (3.0 SRM) Grain 1 79.4 %
1 lbs 8.0 oz Oats, Flaked (1.0 SRM) Grain 2 4.4 %
1 lbs 8.0 oz Special B Malt (180.0 SRM) Grain 3 4.4 %
1 lbs Caramel/Crystal Malt -120L (120.0 SRM) Grain 4 2.9 %
1 lbs Roasted Barley (300.0 SRM) Grain 5 2.9 %
1 lbs Simpsons British Chocolate (450.0 SRM) Grain 6 2.9 %
8.0 oz Rye, Flaked (2.0 SRM) Grain 7 1.5 %
8.0 oz Molasses (80.0 SRM) Sugar 8 1.5 %
3.00 oz Summit [17.00 %] - Boil 60.0 min Hop 9 60.4 IBUs
2.50 oz Cascade [7.10 %] - Boil 30.0 min Hop 10 16.1 IBUs
1.50 oz Summit [17.00 %] - Boil 30.0 min Hop 11 23.2 IBUs
4.00 Items Anise, Star (Boil 30.0 mins) Spice 12 -
2.00 oz Cascade [7.10 %] - Boil 5.0 min Hop 13 3.4 IBUs
15.00 Items Vanilla Bean (Secondary) Spice 14 -
3.0 pkg Dry English Ale (White Labs #WLP007) [35.49ml] Yeast 15 -
1.0 pkg Super High Gravity Ale (White Labs #WLP099) [35.49 ml] Yeast 16 (Only used if primary yeast dies off too early)
6.00 oz Cocoa Nibs (Secondary) Flavor 17 -
Beer Profile
Est Original Gravity: 1.151 SG
Est Final Gravity: 1.021 SG
Estimated Alcohol by Vol: 17 %
Bitterness: 103.0 IBUs
Calories: 458.3 kcal/12oz
Est Color: 58.5 SRM
Mash Profile
Mash Name: Single Infusion, Full Body,
No Mash Out
Total Grain Weight: 34 lbs
Mash Temp: 156.0 F 90 minutes
I am also curious about my water profile. Doing some research I know the water profile is important especially when your mashing. Is a RA around 250 too high and appropriate for this dark beer? I downloaded the brun water excel program but I dont think I fully understand how to use it and the results. I get a mash Ph of 5.2, RA 42 (hardness 210, alkalinity 90) if I input my values correctly but I dont know if I did .the numbers dont seem right? Additionally I was considering not mashing my dark grains but doing a cold brew with them (leave crushed roasted grains in cold water for 12 hours then strain grains) I have read just like brewing coffee when you cold brew grains it dosent extract acidity and produces a smoother product. I assume this would increase my Ph level of the mash since the acidity of the roasted grains wouldnt be in the mash and my OG would be lower since I dont believe any of the sugars will be extracted from the cold brew .I guess I could just increase my base grains to compensate for those lost fermentables.
My city water report is located here www.lbcwd.org/modules/showdocument.aspx?documentid=38
2011 Metropolitan Water District of Southern California Treated Surface Water
PHG, or Average Range of MCL Typical Source
Chemical MCL (MCLG) Amount Detections Violation? of Contaminant
Radiologicals Tested in 2011
Alpha Radiation (pCi/L) 15 (0) 3 ND 3 No Erosion of Natural Deposits
Beta Radiation (pCi/L) 50 (0) <4 ND 4 No Decay of Man-made or Natural Deposits
Uranium (pCi/l) 20 0.43 2 2 No Erosion of Natural Deposits
Inorganic Chemicals Tested in 2011
Aluminum (ppm) 1 0.6 0.14 ND 0.24 No Treatment Process Residue, Natural Deposits
Fluoride (ppm) treatment-related Control Range 0.7 1.3 ppm 0.8 0.5 1.0 No Water Additive for Dental Health
Optimal Level 0.8 ppm
Nitrate as NO3 (ppm) 45 45 <2 ND 2 No Agriculture Runoff and Sewage
Nitrate + Nitrite as N (ppm) 10 10 < 0.4 ND 0.4 No Agriculture Runoff and Sewage
Secondary Standards* Tested in 2011
Aluminum (ppb) 200* 600 140 ND 240 No Treatment Process Residue, Natural Deposits
Chloride (ppm) 500* n/a 72 70 75 No Runoff or Leaching from Natural Deposits
Color (color units) 15* n/a 1 1 No Runoff or Leaching from Natural Deposits
Odor (threshold odor number) 3* n/a 2 2 No Naturally-occurring Organic Materials
Specific Conductance (μmho/cm) 1,600* n/a 690 320 960 No Substances that Form Ions in Water
Sulfate (ppm) 500* n/a 160 150 170 No Runoff or Leaching from Natural Deposits
Total Dissolved Solids (ppm) 1,000* n/a 470 440 490 No Runoff or Leaching from Natural Deposits
Turbidity (ntu) 5* n/a 0.05 0.03 0.25 No Soil Runoff
Unregulated Chemicals Tested in 2011
Alkalinity, total as CaCO3 (ppm) Not Regulated n/a 90 48 120 n/a Runoff or Leaching from Natural Deposits
Boron (ppb) NL = 1,000 n/a 130 130 n/a Runoff or Leaching from Natural Deposits
Calcium (ppm) Not Regulated n/a 51 47 55 n/a Runoff or Leaching from Natural Deposits
Hardness, total as CaCO3 (ppm) Not Regulated n/a 190 57 270 n/a Runoff or Leaching from Natural Deposits
Hardness, total (grains/gal) Not Regulated n/a 11 3 16 n/a Runoff or Leaching from Natural Deposits
Magnesium (ppm) Not Regulated n/a 20 19 21 n/a Runoff or Leaching from Natural Deposits
pH (pH units) Not Regulated n/a 8.0 7.0 8.6 n/a Hydrogen Ion Concentration
Potassium (ppm) Not Regulated n/a 3.8 3.6 4.0 n/a Runoff or Leaching from Natural Deposits
Sodium (ppm) Not Regulated n/a 72 67 77 n/a Runoff or Leaching from Natural Deposits
Total Organic Carbon (ppm) Not Regulated TT 2.4 1.7 3.0 n/a Various Natural and Man-made Sources
ppb = parts-per-billion; ppm = parts-per-million; ppt = parts-per-trillion; pCi/L = picoCuries per liter; ntu = nephelometric turbidity units; μmho/cm = micromhos per centimeter;
ND = not detected; < = average is less than the detection limit for reporting purposes; MCL = Maximum Contaminant Level; (MCLG) = federal MCL Goal; PHG = California Public Health Goal;
NL = Notification Level; n/a = not applicable; TT = treatment technique * Contaminant is regulated by a secondary standard.
Turbidity combined filter effluent Treatment Turbidity TT Typical Source
Diemer Filtration Plant Technique Measurements Violation? of Contaminant
1) Highest single turbidity measurement 0.3 NTU 0.08 No Soil Runoff
2) Percentage of samples less than 0.3 NTU 95% 100% No Soil Runoff
Turbidity is a measure of the cloudiness of the water, an indication of particulate matter, some of which might include harmful microorganisms.
Low turbidity in Metropolitans treated water is a good indicator of effective filtration. Filtration is called a treatment technique (TT).
A treatment technique is a required process intended to reduce the level of contaminants in drinking water that are difficult and sometimes impossible to measure directly.
Here is my recipe, any suggestions?
Imperial Stout
Type: All Grain BIAB
Batch Size (fermenter): 6.00 gal
Boil Time: 60 min
Equipment: 15gal boil pot, counterflow chiller
Brewhouse Efficiency: 72.00 %
Fermentation: Ale, Single Stage,Bourbon Barrel 2nd stage
Ingredients
Ingredients
Amt Name Type # %/IBU
27 lbs Pale Malt, Maris Otter (3.0 SRM) Grain 1 79.4 %
1 lbs 8.0 oz Oats, Flaked (1.0 SRM) Grain 2 4.4 %
1 lbs 8.0 oz Special B Malt (180.0 SRM) Grain 3 4.4 %
1 lbs Caramel/Crystal Malt -120L (120.0 SRM) Grain 4 2.9 %
1 lbs Roasted Barley (300.0 SRM) Grain 5 2.9 %
1 lbs Simpsons British Chocolate (450.0 SRM) Grain 6 2.9 %
8.0 oz Rye, Flaked (2.0 SRM) Grain 7 1.5 %
8.0 oz Molasses (80.0 SRM) Sugar 8 1.5 %
3.00 oz Summit [17.00 %] - Boil 60.0 min Hop 9 60.4 IBUs
2.50 oz Cascade [7.10 %] - Boil 30.0 min Hop 10 16.1 IBUs
1.50 oz Summit [17.00 %] - Boil 30.0 min Hop 11 23.2 IBUs
4.00 Items Anise, Star (Boil 30.0 mins) Spice 12 -
2.00 oz Cascade [7.10 %] - Boil 5.0 min Hop 13 3.4 IBUs
15.00 Items Vanilla Bean (Secondary) Spice 14 -
3.0 pkg Dry English Ale (White Labs #WLP007) [35.49ml] Yeast 15 -
1.0 pkg Super High Gravity Ale (White Labs #WLP099) [35.49 ml] Yeast 16 (Only used if primary yeast dies off too early)
6.00 oz Cocoa Nibs (Secondary) Flavor 17 -
Beer Profile
Est Original Gravity: 1.151 SG
Est Final Gravity: 1.021 SG
Estimated Alcohol by Vol: 17 %
Bitterness: 103.0 IBUs
Calories: 458.3 kcal/12oz
Est Color: 58.5 SRM
Mash Profile
Mash Name: Single Infusion, Full Body,
No Mash Out
Total Grain Weight: 34 lbs
Mash Temp: 156.0 F 90 minutes
I am also curious about my water profile. Doing some research I know the water profile is important especially when your mashing. Is a RA around 250 too high and appropriate for this dark beer? I downloaded the brun water excel program but I dont think I fully understand how to use it and the results. I get a mash Ph of 5.2, RA 42 (hardness 210, alkalinity 90) if I input my values correctly but I dont know if I did .the numbers dont seem right? Additionally I was considering not mashing my dark grains but doing a cold brew with them (leave crushed roasted grains in cold water for 12 hours then strain grains) I have read just like brewing coffee when you cold brew grains it dosent extract acidity and produces a smoother product. I assume this would increase my Ph level of the mash since the acidity of the roasted grains wouldnt be in the mash and my OG would be lower since I dont believe any of the sugars will be extracted from the cold brew .I guess I could just increase my base grains to compensate for those lost fermentables.
My city water report is located here www.lbcwd.org/modules/showdocument.aspx?documentid=38
2011 Metropolitan Water District of Southern California Treated Surface Water
PHG, or Average Range of MCL Typical Source
Chemical MCL (MCLG) Amount Detections Violation? of Contaminant
Radiologicals Tested in 2011
Alpha Radiation (pCi/L) 15 (0) 3 ND 3 No Erosion of Natural Deposits
Beta Radiation (pCi/L) 50 (0) <4 ND 4 No Decay of Man-made or Natural Deposits
Uranium (pCi/l) 20 0.43 2 2 No Erosion of Natural Deposits
Inorganic Chemicals Tested in 2011
Aluminum (ppm) 1 0.6 0.14 ND 0.24 No Treatment Process Residue, Natural Deposits
Fluoride (ppm) treatment-related Control Range 0.7 1.3 ppm 0.8 0.5 1.0 No Water Additive for Dental Health
Optimal Level 0.8 ppm
Nitrate as NO3 (ppm) 45 45 <2 ND 2 No Agriculture Runoff and Sewage
Nitrate + Nitrite as N (ppm) 10 10 < 0.4 ND 0.4 No Agriculture Runoff and Sewage
Secondary Standards* Tested in 2011
Aluminum (ppb) 200* 600 140 ND 240 No Treatment Process Residue, Natural Deposits
Chloride (ppm) 500* n/a 72 70 75 No Runoff or Leaching from Natural Deposits
Color (color units) 15* n/a 1 1 No Runoff or Leaching from Natural Deposits
Odor (threshold odor number) 3* n/a 2 2 No Naturally-occurring Organic Materials
Specific Conductance (μmho/cm) 1,600* n/a 690 320 960 No Substances that Form Ions in Water
Sulfate (ppm) 500* n/a 160 150 170 No Runoff or Leaching from Natural Deposits
Total Dissolved Solids (ppm) 1,000* n/a 470 440 490 No Runoff or Leaching from Natural Deposits
Turbidity (ntu) 5* n/a 0.05 0.03 0.25 No Soil Runoff
Unregulated Chemicals Tested in 2011
Alkalinity, total as CaCO3 (ppm) Not Regulated n/a 90 48 120 n/a Runoff or Leaching from Natural Deposits
Boron (ppb) NL = 1,000 n/a 130 130 n/a Runoff or Leaching from Natural Deposits
Calcium (ppm) Not Regulated n/a 51 47 55 n/a Runoff or Leaching from Natural Deposits
Hardness, total as CaCO3 (ppm) Not Regulated n/a 190 57 270 n/a Runoff or Leaching from Natural Deposits
Hardness, total (grains/gal) Not Regulated n/a 11 3 16 n/a Runoff or Leaching from Natural Deposits
Magnesium (ppm) Not Regulated n/a 20 19 21 n/a Runoff or Leaching from Natural Deposits
pH (pH units) Not Regulated n/a 8.0 7.0 8.6 n/a Hydrogen Ion Concentration
Potassium (ppm) Not Regulated n/a 3.8 3.6 4.0 n/a Runoff or Leaching from Natural Deposits
Sodium (ppm) Not Regulated n/a 72 67 77 n/a Runoff or Leaching from Natural Deposits
Total Organic Carbon (ppm) Not Regulated TT 2.4 1.7 3.0 n/a Various Natural and Man-made Sources
ppb = parts-per-billion; ppm = parts-per-million; ppt = parts-per-trillion; pCi/L = picoCuries per liter; ntu = nephelometric turbidity units; μmho/cm = micromhos per centimeter;
ND = not detected; < = average is less than the detection limit for reporting purposes; MCL = Maximum Contaminant Level; (MCLG) = federal MCL Goal; PHG = California Public Health Goal;
NL = Notification Level; n/a = not applicable; TT = treatment technique * Contaminant is regulated by a secondary standard.
Turbidity combined filter effluent Treatment Turbidity TT Typical Source
Diemer Filtration Plant Technique Measurements Violation? of Contaminant
1) Highest single turbidity measurement 0.3 NTU 0.08 No Soil Runoff
2) Percentage of samples less than 0.3 NTU 95% 100% No Soil Runoff
Turbidity is a measure of the cloudiness of the water, an indication of particulate matter, some of which might include harmful microorganisms.
Low turbidity in Metropolitans treated water is a good indicator of effective filtration. Filtration is called a treatment technique (TT).
A treatment technique is a required process intended to reduce the level of contaminants in drinking water that are difficult and sometimes impossible to measure directly.