HoppingMad
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- Sep 9, 2020
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So, I completed my first ever AG brew yesterday in my new GF G30. Have to say that whilst it was a bit of a learning curve, it was relatively straight forward and came off pretty much as planned, barring my gravity readings (more on that later) and the chilling and transfer into the FV which I'd not read up on, didn't concentrate properly (I was being harassed by the wife to get out of the way by this time), so ended up with 39c work in my FV!
Anyway, it was Crafty Brews "Wreck the Halls" festive ale recipe pack, to make 23L, as I thought a recipe pack was a better idea to start off my foray into AG brewing.
5.35kg grain bill:
O.G. = 1060
F.G. = 1011
ABV 6.5%
However, inputting the ingredients into the GF recipes it arrives at an expected 5.79%.
I took a pre-boil S.G. which I read as 1060, and an O.G. reading of 1075. However, using those figures works out the efficiency to over 100%, so clearly that's incorrect, and if I take the OG reading and the expected FG of 1011, it works out to 8.4% - would be great if that was correct but I'm assuming I must got them wrong / my hydrometer is knackered. It's the same one I've always used mind, so I'm guessing it was more me than it!
I used the Grainfather calculators to calculate the Mash and Sparge volumes, based on this forums advice, and they worked out spot on so thanks for that, so I started the boil on the advised 26L. However, the target final volume was 23L and I ended up with 21.5L, so I assume I need to work out the % difference and add that to my sparge water volume next time? I didn't want to "top up" back to 23, so I left it the 21.5.
I ended up heating my sparge water on the hob, using my 30L Brupack brew pan I used for my extract brews, as the heater I'd ordered wasn't the heater delivered (separate thread on that, so I won't go into it). Hopefully, I'll have the heater next time which will make that process simpler / quicker (takes a bloody age to heat up even on the massive gas ring).
Re the cooling and transfer, I'd not read up as much on the counterflow chiller, which didn't help when I got to that stage and realised I wasn't prepared! In hindsight, I should have just used my immersion chiller but we live and learn. Next time, I'll a) use the wortometer (really can't believe I forgot about that!!), and b), I'll re-circulate for 5-10 mins to reduce the overall temp a bit before starting the transfer to my FV. I also didn't realise the red tap on the pump could me used to slow the flow and increase the effects of the chilling!
Overall, I found the process less stressful than extract TBH, but I'm guessing that's a big selling point on the Grainfather! It all seemed a bit less hectic and with the timers in the GF app, along with the ability to monitor the temp (no overshooting in sight), meant I didn't have to be glued to the stove, which helps with relations with SHMBO!
Anyway, it was Crafty Brews "Wreck the Halls" festive ale recipe pack, to make 23L, as I thought a recipe pack was a better idea to start off my foray into AG brewing.
5.35kg grain bill:
- 4.4kg of Maris Otter
- 350g Cara Munich I malt
- 300g Crystal
- 200g Carared
- 100g Carafa Special I
- 500g Candi Sugar
- 4 x Star Anise
- 2 x Cinnamon sticks
- 50g orange peel
- 18g Challenger
- 52g Stryian Goldings
O.G. = 1060
F.G. = 1011
ABV 6.5%
However, inputting the ingredients into the GF recipes it arrives at an expected 5.79%.
I took a pre-boil S.G. which I read as 1060, and an O.G. reading of 1075. However, using those figures works out the efficiency to over 100%, so clearly that's incorrect, and if I take the OG reading and the expected FG of 1011, it works out to 8.4% - would be great if that was correct but I'm assuming I must got them wrong / my hydrometer is knackered. It's the same one I've always used mind, so I'm guessing it was more me than it!
I used the Grainfather calculators to calculate the Mash and Sparge volumes, based on this forums advice, and they worked out spot on so thanks for that, so I started the boil on the advised 26L. However, the target final volume was 23L and I ended up with 21.5L, so I assume I need to work out the % difference and add that to my sparge water volume next time? I didn't want to "top up" back to 23, so I left it the 21.5.
I ended up heating my sparge water on the hob, using my 30L Brupack brew pan I used for my extract brews, as the heater I'd ordered wasn't the heater delivered (separate thread on that, so I won't go into it). Hopefully, I'll have the heater next time which will make that process simpler / quicker (takes a bloody age to heat up even on the massive gas ring).
Re the cooling and transfer, I'd not read up as much on the counterflow chiller, which didn't help when I got to that stage and realised I wasn't prepared! In hindsight, I should have just used my immersion chiller but we live and learn. Next time, I'll a) use the wortometer (really can't believe I forgot about that!!), and b), I'll re-circulate for 5-10 mins to reduce the overall temp a bit before starting the transfer to my FV. I also didn't realise the red tap on the pump could me used to slow the flow and increase the effects of the chilling!
Overall, I found the process less stressful than extract TBH, but I'm guessing that's a big selling point on the Grainfather! It all seemed a bit less hectic and with the timers in the GF app, along with the ability to monitor the temp (no overshooting in sight), meant I didn't have to be glued to the stove, which helps with relations with SHMBO!
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