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Posts Tagged ‘fermentation

Otter Dark Stout MKII – This is basically my first Extract own recipe which I’m now going to do as an All Grain :) It tasted bloody fantastic as an extract brewed with Safale s-04, but this time I’m thinking of using Whitelabs Irish Ale yeast WLP004 http://www.whitelabs.com/beer/strains_wlp004.html
This is mkII because I’m rationalising my hops a bit instead of using a combination of EKG’s / Fuggles as my bittering additions I’m going to use Admiral and save a few grams on the Flavour/Aroma additions.
For Water Treatment I’m thinking I’ll follow the Stout profile in the GW Calc, though will add a Tsp of Gypsum anyway.
I wonder if a stout mash be naturally more or less acidic??? (90min mash)

Fermentables:
Maris Otter 3800g
Roasted Barley 355g
Chocolate Malt, Pale 355g (Thanks to Paul @ http://www.barleybottom.com for the excellent service, You’ll be getting some of this when its ready)
Crystal Malt 355g
Crystal Wheat Malt 190g

Hops:
Admiral 20g (FWH) 60mins
Fuggle 20g @ 15mins
East Kent Golding 20g @ 15mins

Final Volume: 23 Litres
Original Gravity: 1.048
Final Gravity: 1.016
Alcohol Content: 4.1% ABV
Total Liquor: 33.4 Litres
Mash Liquor: 12.6 Litres
Mash Efficiency: 75 %
Bitterness: 36 EBU
Colour: 232 EBC

Here’s the pictures so far…..
The Grain bill, Maris otter, roasted barley, pale chocolate malt, crystal wheat malt, crystal malt:
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Mash Temp, near as damn it 66 C, finished at 64 C Hmm!:
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Mash pH, think this looks about right:
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First run off, tastes pretty damn good:
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Mash Tun and first batch sparge, it proceeded to stick after a good start, had to re-suspend and blow up the pipe, I wonder if it is the Crystal Wheat malt thats causing this? My last 23L batch in this tun worked perfectly with no sticking:
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I managed to not prepare quite enough water this time too, nice! So I’m generally arsing about boiling kettles full of bottled water to top up my second batch sparge, I’m not far short but enough to be annoying :D
The Mash is doing a slow trickle! How can it work perfectly one time and then be a b’stard the next?! *Bigger saw cuts maybe, they are all Junior Hacksaw cuts at present*
More to follow… S L O W L Y ! :roll: #-o
Admiral FWH going in with first batch spargings to warm up, the second batch sparge is running off better than the first, thankfully!!!:
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Cooler in and 15 minute hops (Fuggles and EKGs):
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I had 10g of Fuggles scraps left in the bag so these have gone in as a Zero minutes 10 min steep:
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Cold Break and (Floaters) Hop seeds:
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Hit my Target OG of 1048, happy happy joy joy:
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I’ve decided I’m going to split this batch and use the Whitelabs Irish & s-04 yeasts.
Hop seed catcher and aeration:
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Much needed refreshment, ‘Fuggles Bitter’:
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Pitched Vial @ 22 C Whitelabs Irish Ale yeast WLP004 in FV1:
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Dry Sprinkled @ 22 C Safale s-04 in FV3:
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All done, Just a bit of tiding up to do :) Net curtain material, to act as a Mashing bag, ordered on ebay! And I’ll be making my Mash Tun Manifold’s slots wider with a regular Hacksaw rather than their present Junior hacksaw cuts.

As of about now 18.00 20/09/09, we have fermentation with both batches :)
Whitelabs WLP004 Irish Ale:
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Safale s-04:
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**Bottled 28/09/09 with 48g white sugar, both yeast batches tasting about the same.


Fermentation of Coopers Stout!

I toyed with the idea of splitting the batch in two and adding extra stuff to one of them, but I’m lazy so its all in one FV with 1kg DSM, a teaspoon of yeast nutrient and I rehydrated the yeast for a good 20+mins before pitching, did some major aeration of the wort too. Pitched at 26 Deg C and took an OG reading of 1036.
For my first taste of DSM, Yummy stuff… Malted Milk Biscuits Mmmm, even the Coopers concentrated wort tasted pretty good straight out of the can 🙂

Fermentation of Coopers Stout!

Had a little taste, not bad for straight out of the FV… fingers crossed yet again for a few weeks time.

Coopers stout, doing it stuff, Dark spray malt used instead of sugar.
Probably good to leave for 10days in the FV but I’ll probably bottle once its reached a steady FG (will be bottling in plastic).

I made up the bottling stick pipe-tap tubes from (http://www.18000feet.com/how/bottle.htm did it with the drum tap) worked absolutely great.

Rehydrating yeast and pitching feels like ‘lighting the blue touch-paper on a firework’ only to see it go out but you’re never really sure so you stand well back!

5 Days in the FV and its settled down now, and enough clear surface area to plop in the hydrometer which looks to be sating about FG:1010 making for an (ABV): 3.41%. I presume this figure sounds right for 1KG of DSM instead of sugar?

Bottled this evening (Feb 08, 2009), primed the bottling bucket.
Got this lot at about 20 Deg C for the next week 🙂
Conditioning Coopers Stout

Drinking it… its bloody good 🙂 Well worth doing a kit and a great stating point for home brewing 🙂 Coopers stout with 1Kg Dark Spray malt: Bottled Sunday, so only in its third day of bottle conditioning.
Pleasantly surprised with the hiss as the crown cap came off, though it could do with a little more conditioning to increase the carbonation just a tad!
I’m getting Bonfire toffee, liquorice with the liquorice bringing a sweetness across the pallet after swallowing, subtle bitterness.

not at all bad, and it should get better with age, will brew again :)
I might be silly and go for some Muscovado sugar and a few extra hops in the next one ;)

Next its time to compare the original to the home brew!!
original vs home brew

The Original Coopers Stout:
Smells and tastes somewhat like Cough mixture, very dark, not really a burnt taste more of a caramel with slight liquorice.
Its obviously stronger at 6.3% and you can taste the alcohol which might be adding to the cough medicine taste and aroma.
I can’t actually say that I like it… maybe it doesn’t travel well!

The Home brew Coopers Stout:
Simple, smooth, nothing harsh, easy drinking… nothing like the Original stuff.
What a shame the original isn’t as pleasant as the Home Brew!

Conclusion:
I’m going to tip the Original as it reminds me of a nasty 10.2% Chilli beer I tried the other week at the Bradford Beer fest, that was worse… I’ll stick to Cough medicine when I have a cold! Unimpressed. I prefer looking at the photograph to drinking the beer.

I’d love to hear someone else do a comparison, give it an alternative perspective.


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