In honour of our mustachioed plumber friend, this is something I planned to put on in the first week of January, it finally got brewed yesterday. It's a user-upper of the last of my barley DME (before the net curtains get used in anger) and remaining stock of citra and galaxy. Went for the same recipe as my fairly recent all galaxy brew (http://www.thehomebrewforum.co.uk/viewtopic.php?f=21&t=45956). All went smoothly, so I should end up with a nice easy-drinking 4.6% or thereabouts (SG was 1.043).
Citra Mari(s)o Galaxy
Recipe Specs
----------------
Batch Size (L): 14.0
Total Grain (kg): 1.820
Total Hops (g): 80.00
Original Gravity (OG): 1.046 (°P): 11.4
Final Gravity (FG): 1.012 (°P): 3.1
Alcohol by Volume (ABV): 4.52 %
Colour (SRM): 6.7 (EBC): 13.2
Bitterness (IBU): 41.6 (Average)
Grain Bill
----------------
1.600 kg Dry Malt Extract - Light (87.91%)
0.110 kg Caramalt (6.04%)
0.110 kg Carapils (Dextrine) (6.04%)
Hop Bill
----------------
5.0 g Citra Leaf (14.8% Alpha) @ 60 Minutes (Boil) (0.4 g/L)
5.0 g Galaxy Leaf (14.4% Alpha) @ 60 Minutes (Boil) (0.4 g/L)
7.0 g Citra Leaf (14.8% Alpha) @ 15 Minutes (Boil) (0.5 g/L)
7.0 g Galaxy Leaf (14.4% Alpha) @ 15 Minutes (Boil) (0.5 g/L)
14.0 g Citra Leaf (14.8% Alpha) @ 0 Minutes (Aroma) (1 g/L)
14.0 g Galaxy Leaf (14.4% Alpha) @ 0 Minutes (Aroma) (1 g/L)
14.0 g Citra Leaf (14.8% Alpha) @ 0 Days (Dry Hop) (1 g/L)
14.0 g Galaxy Leaf (14.4% Alpha) @ 0 Days (Dry Hop) (1 g/L)
Misc Bill
----------------
1/4 Protafloc @ 15 Minutes (Boil)
Fermented at 18°C with Safale US-05
Recipe Generated with BrewMate
Also, first time using Star San: no going back. Checked the pH of my one litre of water before adding 1.6 mL of Star San and I'd say about 7.0. After adding the concentrated Star San a healthy pH 2.0. A bit cloudy, but I can't see how this can affect its performance providing the pH is so low. Detergent combined with low pH will lyse any cells it comes into contact with. Presumably this is just calcium phosphate (Ca(H2PO4)2?)precipitating as at this pH any carbonate will exist as carbonic acid (H2CO3) and will out-gas as CO2, leaving the calcium to precipitate as the phosphate salt which I assume is not very soluble in water (phosphate salts tend to be fairly insoluble). That's my theory anyway.
Citra Mari(s)o Galaxy
Recipe Specs
----------------
Batch Size (L): 14.0
Total Grain (kg): 1.820
Total Hops (g): 80.00
Original Gravity (OG): 1.046 (°P): 11.4
Final Gravity (FG): 1.012 (°P): 3.1
Alcohol by Volume (ABV): 4.52 %
Colour (SRM): 6.7 (EBC): 13.2
Bitterness (IBU): 41.6 (Average)
Grain Bill
----------------
1.600 kg Dry Malt Extract - Light (87.91%)
0.110 kg Caramalt (6.04%)
0.110 kg Carapils (Dextrine) (6.04%)
Hop Bill
----------------
5.0 g Citra Leaf (14.8% Alpha) @ 60 Minutes (Boil) (0.4 g/L)
5.0 g Galaxy Leaf (14.4% Alpha) @ 60 Minutes (Boil) (0.4 g/L)
7.0 g Citra Leaf (14.8% Alpha) @ 15 Minutes (Boil) (0.5 g/L)
7.0 g Galaxy Leaf (14.4% Alpha) @ 15 Minutes (Boil) (0.5 g/L)
14.0 g Citra Leaf (14.8% Alpha) @ 0 Minutes (Aroma) (1 g/L)
14.0 g Galaxy Leaf (14.4% Alpha) @ 0 Minutes (Aroma) (1 g/L)
14.0 g Citra Leaf (14.8% Alpha) @ 0 Days (Dry Hop) (1 g/L)
14.0 g Galaxy Leaf (14.4% Alpha) @ 0 Days (Dry Hop) (1 g/L)
Misc Bill
----------------
1/4 Protafloc @ 15 Minutes (Boil)
Fermented at 18°C with Safale US-05
Recipe Generated with BrewMate
Also, first time using Star San: no going back. Checked the pH of my one litre of water before adding 1.6 mL of Star San and I'd say about 7.0. After adding the concentrated Star San a healthy pH 2.0. A bit cloudy, but I can't see how this can affect its performance providing the pH is so low. Detergent combined with low pH will lyse any cells it comes into contact with. Presumably this is just calcium phosphate (Ca(H2PO4)2?)precipitating as at this pH any carbonate will exist as carbonic acid (H2CO3) and will out-gas as CO2, leaving the calcium to precipitate as the phosphate salt which I assume is not very soluble in water (phosphate salts tend to be fairly insoluble). That's my theory anyway.