Did another brew of Robinson's Old Stockport from GW's book, tweaked the ABV up to 4% in Beersmith and it's a repeat of AG#3 or 4 which turned out very well.
I'll save the ingredients for the book as it's certainly one worth buying, also used MO with this one.
Added the following water additions
Mineral Additions Mash (12ltrs)(g) Sparge (37ltrs)(g)
Gypsum . 0.2 0.7
Epsom Salt 0.9 2.6
Canning Salt 0.0 0.0
Baking Soda 0.0
Calcium Chloride 1.0 3.0
Chalk . 0.1
Pickling Lime 0.0
Mag Chloride 0.0 0.0
Aiming for Amber balanced profile
Finished Profile ppm
Ca 47
Mg 9
Na 8
SO4 68
Cl 55
HCO3 -112
Mashing underway
Mashed @2.5ltr/kg - 12.28ltrs +3ltrs to get to the bottom of the grain with the false bottom.
PH was 5.8, added 4ml of 60% lactic acid which brought the PH down to 5.3
Topped up the HLT to 37ltrs to bring the temp down to 66 (overshot a little)
Mashed for 90m @ 66c, recirculating through the HERMS in the HLT.
Checked the PH at the end and it had risen to 5.6
Mashed out @ 75.4. Took 15mins to raise the temp of the mash from 66-75.4c
Sparge water was 6.9ph with the additions, Sparged through 28ltrs @ 75.4c
Messed up the sparge a little with too much water added too fast, which may have caused the SG @ 1.004 below
Checked the gravity when i was at 25ltrs into the kettle to find out i was already at 1.004, PH was 5.8
Collected 35ltrs @ 1.030.
Boiled 90mins, 2 hop additions + whirlfloc. Immersion chiller cooled to 25 in 13 mins.
Let sit for 25 minutes, drained 22 ltrs into the fv
Made a 2ltr starter of WLP002 on Friday, was down to 1.7ltrs after 15m boil. Decanted 500ml into a kilner jar and another 250 into another (to reuse another day)
Pitched 1ltr of starter into fv, fridge set at 19.
Struggling with both PH control and also SG of runoff.
Tempted to add more calcium chloride and gypsum in similar quantities to maintain the SO/CI ratio (1.2 in this case) and ignore it's numbers on the water profile but not sure what is best adding more lactic acid or more SO/CI?
Need to sparge slower and check the volumes more often
Need to read the "Water" book whilst stopping in hotels this week
Brewdog helping out
I'll save the ingredients for the book as it's certainly one worth buying, also used MO with this one.
Added the following water additions
Mineral Additions Mash (12ltrs)(g) Sparge (37ltrs)(g)
Gypsum . 0.2 0.7
Epsom Salt 0.9 2.6
Canning Salt 0.0 0.0
Baking Soda 0.0
Calcium Chloride 1.0 3.0
Chalk . 0.1
Pickling Lime 0.0
Mag Chloride 0.0 0.0
Aiming for Amber balanced profile
Finished Profile ppm
Ca 47
Mg 9
Na 8
SO4 68
Cl 55
HCO3 -112
Mashing underway
Mashed @2.5ltr/kg - 12.28ltrs +3ltrs to get to the bottom of the grain with the false bottom.
PH was 5.8, added 4ml of 60% lactic acid which brought the PH down to 5.3
Topped up the HLT to 37ltrs to bring the temp down to 66 (overshot a little)
Mashed for 90m @ 66c, recirculating through the HERMS in the HLT.
Checked the PH at the end and it had risen to 5.6
Mashed out @ 75.4. Took 15mins to raise the temp of the mash from 66-75.4c
Sparge water was 6.9ph with the additions, Sparged through 28ltrs @ 75.4c
Messed up the sparge a little with too much water added too fast, which may have caused the SG @ 1.004 below
Checked the gravity when i was at 25ltrs into the kettle to find out i was already at 1.004, PH was 5.8
Collected 35ltrs @ 1.030.
Boiled 90mins, 2 hop additions + whirlfloc. Immersion chiller cooled to 25 in 13 mins.
Let sit for 25 minutes, drained 22 ltrs into the fv
Made a 2ltr starter of WLP002 on Friday, was down to 1.7ltrs after 15m boil. Decanted 500ml into a kilner jar and another 250 into another (to reuse another day)
Pitched 1ltr of starter into fv, fridge set at 19.
Struggling with both PH control and also SG of runoff.
Tempted to add more calcium chloride and gypsum in similar quantities to maintain the SO/CI ratio (1.2 in this case) and ignore it's numbers on the water profile but not sure what is best adding more lactic acid or more SO/CI?
Need to sparge slower and check the volumes more often
Need to read the "Water" book whilst stopping in hotels this week
Brewdog helping out
