40l Guinness clone, possible sub help

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40l Guinness clone, possible sub help

Postby maggs » Thu Jul 03, 2014 19:05

I'm doing a brew day with a friend in a few weeks, and I'd like to send him off with an FV of wort to ferment, in much the same way that Moley did for me. My friend likes darker beers and stouts, so I figured a Guinness clone from Graham Wheeler's book would be a good place to start.

The recipe is fairly simple, and scales to 5.6kg pale malt, 1.6kg of flaked barley and 0.9kg of roasted barley for a 40l brew length. When I bought the barley though I was only buying for a 23l brew length, so although I have the full amount of roasted barley I only have 1kg of flaked.
I do have 1kg of pale wheat malt, and wondered if I could substitute 600g of the flaked barley for 600g of the pale wheat malt?

This would then give me:
Guinness (Dry Stout)

Original Gravity (OG): 1.043 (°P): 10.7
Final Gravity (FG): 1.011 (°P): 2.8
Alcohol (ABV): 4.22 %
Colour (SRM): 32.6 (EBC): 64.2
Bitterness (IBU): 44.6 (Average)

69.14% Maris Otter Malt - 5.6kg
12.34% Flaked Barley - 1kg
11.11% Roasted Barley - 0.9kg
7.41% Flaked Wheat - 0.6kg

1.2 g/L Target (12.2% Alpha) @ 90 Minutes (Boil) - 48g
0.4 g/L Target (12.2% Alpha) @ 15 Minutes (Boil) - 15g


Single step Infusion at 66°C for 90 Minutes. Boil for 90 Minutes

Fermented at 20°C with Safale S-04


Recipe Generated with BrewMate

Would this work or should I just order another kilo of flaked barley?
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Re: 40l Guinness clone, possible sub help

Postby BarnsleyBrewer » Thu Jul 03, 2014 19:31

I wouldn't over do it with the flaked barley, I once did a stout with 20% in and the taste wasn't right.... :hmm:
Last stout I did was to this recipe....
Tastes great.......... :thumb:

Guinness 59L
13.00 kg Pale Malt (2 Row) UK (2.5 SRM) Grain 82.28 %
1.80 kg Roasted Barley (300.0 SRM) Grain 11.39 %
1.00 kg Barley, Flaked (1.7 SRM) Grain 6.33 %
155.00 gm Pilgrim Hops[11.50 %] (60 min) Hops 62.6 IBU
3 Pkgs Nottingham (Danstar #-) Yeast-Ale

BB :drink:

"Brewing Fine Ales in Barnsley Since 1984"
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2018......... 416
Pints brewed in 2017.. 416
Pints brewed in 2016.. 208
Pints brewed in 2015.. 624
Pints brewed in 2014.. 832
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Re: 40l Guinness clone, possible sub help

Postby maggs » Thu Jul 03, 2014 19:35

I'm just going off what Graham Wheeler published at the moment. Part of my (not so) cunning plan to do a few basic brews while I get started with AG. His recipe comes out at about 70% pale malt, 20% flaked barley and 10% roasted barley...


edit: I've just realised that it's not quite the GW recipe, it must be one that came in with BrewMate as it has two hop additions. That said, the grain bill is still about the same.
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Re: 40l Guinness clone, possible sub help

Postby BarnsleyBrewer » Thu Jul 03, 2014 19:51

Think that's the one I did....
Whatever you choose watch out for it escaping from the fermenter!!

"Brewing Fine Ales in Barnsley Since 1984"
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2018......... 416
Pints brewed in 2017.. 416
Pints brewed in 2016.. 208
Pints brewed in 2015.. 624
Pints brewed in 2014.. 832
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Re: 40l Guinness clone, possible sub help

Postby maggs » Thu Jul 03, 2014 19:55

Been reading around a little and I've had a tweak.

Guinness (Dry Stout)

Original Gravity (OG): 1.042 (°P): 10.5
Final Gravity (FG): 1.011 (°P): 2.8
Alcohol (ABV): 4.13 %
Colour (SRM): 35.3 (EBC): 69.5
Bitterness (IBU): 44.8 (Average)

73.62% Maris Otter Malt - 6kg
12.27% Flaked Barley - 1kg
12.27% Roasted Barley - 1kg
1.847% Chocolate - 0.15kg

1.2 g/L Target (12.2% Alpha) @ 90 Minutes (Boil) - 48g
0.4 g/L Target (12.2% Alpha) @ 15 Minutes (Boil) - 15g


Single step Infusion at 66°C for 90 Minutes. Boil for 90 Minutes

Fermented at 20°C with Safale S-04


Recipe Generated with BrewMate

BarnsleyBrewer wrote:Think that's the one I did....
Whatever you choose watch out for it escaping from the fermenter!!


I'll be fermenting 20l of it in a 23l bin, so will hopefully have enough headspace... I'll make sure to warn my friend.
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Re: 40l Guinness clone, possible sub help

Postby BarnsleyBrewer » Thu Jul 03, 2014 19:58

You won't, trust me on this one.... You need a sealed lid with blow off pipes for the first 3 days..

"Brewing Fine Ales in Barnsley Since 1984"
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Pints Brewed in 2018......... 416
Pints brewed in 2017.. 416
Pints brewed in 2016.. 208
Pints brewed in 2015.. 624
Pints brewed in 2014.. 832
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Re: 40l Guinness clone, possible sub help

Postby snail59 » Thu Jul 03, 2014 20:03

maggs wrote:
I'll be fermenting 20l of it in a 23l bin, so will hopefully have enough headspace... I'll make sure to warn my friend.


No you wont :nono: :nono: I did 19lts in a 25ltr Bucket and it still got out :o :o

I only smile as I have no idea what is going on.
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Re: 40l Guinness clone, possible sub help

Postby maggs » Thu Jul 03, 2014 20:04

I'll have to chop up a spare FV lid then... Will normal syphon tubing do for the blow off? The type you'd typically get from wilkos etc., or would it be too narrow?
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Re: 40l Guinness clone, possible sub help

Postby ArmChair » Thu Jul 03, 2014 20:50

maggs wrote:I'll have to chop up a spare FV lid then... Will normal syphon tubing do for the blow off? The type you'd typically get from wilkos etc., or would it be too narrow?


You want something a little thicker, if you can get some 1/2 tubing. That's idea :D
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Re: 40l Guinness clone, possible sub help

Postby maggs » Thu Jul 03, 2014 21:40

Hmm, anyone got a good source for that? :D

mob.
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Re: 40l Guinness clone, possible sub help

Postby maggs » Thu Jul 10, 2014 20:17

Managed to get some silicon tubing from my local reptile shop. Asked the owner if she had a good source for some as she uses it for cleaning fish tanks etc. and she gave me a piece for free. It'll need a good clean and sterilising but it should do the job for a blow off tube.

I'll be going with my latest recipe in the thread as it means I don't need to order anything else in and can work with what I have.
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Re: 40l Guinness clone, possible sub help

Postby robwalker » Thu Jul 10, 2014 20:42

normal syphon tubing has always been fine for me for a blow off tube, and it fits on the end of a bubbler pretty well.

i think you'll be fine with a minimum of flaked barley, providing you've got some in there to create the haze that's associated with guinness. wheat i would be careful with, some for head is fine, but in a somewhat delicately flavoured stout you might notice a few flavours coming through. i would be happier subbing for pale malt and leaving a little wheat for retention, but then, neither are going to affect the beer too much.

hope it goes well man!
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