New Brew, Grapefruit Citrus IPA

Grapefruit ipa brew 1

Citra hop extract for dry-hopping

I drink a lot of Cloudwater beers, especially now the Stoneworks bar in Peterborough has opened and providing us with many of the Cloudwater DIPA v6/7/8/9/10 treats, plus lots of great keg and bottles from them.  I like the way Cloudwater are quite honest with ingredients on their bottles, showing that they not only use a lot of hops, but that they a) use hop extracts for bitterness and dry hopping, but that they also use sugars to help get to the high end abv without the beers being too malty and thick bodied.

I’ve used Belgium candy sugar in many of my home brews, but I’d not used any extracts.  So as I enjoy Magic Rock Grapefruit Highwire (plus other Grapefruit enhanced IPAs), I thought I’d try using a grapefruit extract with a brew.  While I was ordering, I saw that my usual supplier (The Malt Miller) had some Citra hop oil (not for bitterness, just for adding to the keg/at bottling time for pure aroma).  The extract is just the pure oils, so adds the aroma we want in an IPA without having to dry hop with leaf – which always has a (very small) risk of infection – or just adding some grassy notes if left a bit long.  Probably more importantly, I’ve seen bits of hop in my drink on pouring, so why add leaves and bits of twig when you can add purity?

Speidel Braumeister upgrade

I’ve spent my time off work for Christmas 2016 adding a replacement tap to my Speidel Braumeister – the original is OK, but it doesn’t grip the tubing (I’ve had it come off several times while draining to the fermentor!), and it’s not ‘standard’  So the new big solid tap gives me much more confidence.

measuring wort gravity

measuring wort gravity – 1.074 on the mark!

I’ve also purchased something to replace the hop screen, and to let me get much more wort into the fermentor on draining, without having tip the Braumeister over getting gunk into the mix.  It’s a fit yourself kit contianing what i can only describe as a tight coil spring with a fitting to attach to the inside of the tap drain.  It sits in the very bottom of the boiler, and uses the pull of the wort through the drain tube as a syphon effect to pull the wort up from the bottom.  In a test with water the suction was enough to drain until about 0.5/1 litre left.. which is way better than  you get normally.  It should also filter really well as long as there’s some leaf hops in there – we shall see!  Check it out on Brew UK website.

UPDATE:  Brew day went well.  The new hop filter system worked well, it did lead to quite a slow drain though, with a bit of tube jiggling to get out most of the wort.  The clarity was very good (I recycled the first 2 litres of wort pouring it back into the boiler as that did have quite a bit of sediment).  There was no gunk in the sample I took for measuring gravity after about 5 litres, it was gold and nice and clear, and also 1.074, which was on the mark as the predicted gravity from the software was 1.073.  So the final strength is going to be 7 – 7.4% depending on how the yeast behaves.

FINAL UPDATE:  Taste test.  Well the extract certainly added big grapefruit notes, but I was disappointed that it had a ‘chemical’ edge, not quite what I hoped for.  Maybe I used a bit too much, and I  probably looking back would have thrown in some dry-hopping hops too to try and keep up with the grapegruit, as the aroma lacked hop and was dominated by the extract.  In summary:  OK but could do better – use less extract and add more real hops to balance.. the citra oil didn’t come through.

Grapefruit ipa brew 2

New tap fitted to the German brewing miracle

Type: All Grain
Boil Time: 60 min
Final Bottling Vol: 19.00 l
Fermentation: Ale, Two Stage
Date: 28 Dec 2016
Equipment: Braumeister 20l
Efficiency: 75.00 %
Est Mash Efficiency: 84.4 %
Ingredients
Amt Name Type # %/IBU
2.00 tbsp PH 5.2 Stabilizer (Mash 60.0 mins) Water Agent 1
5.00 kg Crisp Clear Choice ale UK (5.0 EBC) Grain 2 79.4 %
0.50 kg Vienna Malt (10.0 EBC) Grain 3 7.9 %
0.30 kg Caragold uk (12.0 EBC) Grain 4 4.8 %
15.00 g Citra [14.90 %] – Boil 60.0 min Hop 5 19.5 IBUs
0.50 kg Candi Sugar, Clear [Boil for 40 min](1.0 EBC) Sugar 6 7.9 %
1.00 Items Whirlfloc Tablet (Boil 15.0 mins) Fining 7
10.00 g Citra [14.90 %] – Boil 15.0 min Hop 8 6.5 IBUs
50.00 g Citra [13.40 %] – Boil 5.0 min Hop 9 13.0 IBUs
100.00 g Comet [9.80 %] – Steep/Whirlpool 20.0 min Hop 10 28.9 IBUs
50.00 g Citra [13.40 %] – Steep/Whirlpool 10.0 min Hop 11 11.8 IBUs
1.0 pkg US West Coast Yeast (Mangrove Jack’s #M44) Yeast 12
0.50 tsp Yeast Nutrient (Primary 3.0 days) Other 13
21.00 ml Grapefruit Extract (Bottling 2.0 weeks) Flavor 14

Gravity, Alcohol Content and Color

Est Original Gravity: 1.073 SG
Est Final Gravity: 1.018 SG
Estimated Alcohol by Vol: 7.2 %
Bitterness: 79.7 IBUs
Est Color: 10.5 EBC
Measured Original Gravity: 1.074  SG
Measured Final Gravity:  SG
Actual Alcohol by Vol:

Mash Profile

Mash Name: Braumeister 4 step light body 76% efficiency
Sparge Water: 2.17 l
Sparge Temperature: 76.0 C
Est Mash PH: 5.68
Total Grain Weight: 6.30 kg
Grain Temperature: 20.0 C
Target Mash PH: 5.20
Mash Steps
Name Description Step Temperature Step Time
add malt pipe Add 27 l of water and heat to 40.0 C over 20 min 40.0 C 0 min
Maltose mode Heat to 63.0 C over 5 min 63.0 C 60 min
Mash Step Heat to 69.0 C over 5 min 69.0 C 10 min
Mash Out Heat to 75.0 C over 5 min 75.0 C 5 min

Sparge: Fly sparge with 6 l water at 76.0 C

Carbonation and Storage

Carbonation Type: Keg
Keg/Bottling Temperature: 18 C
Fermentation: Ale, Two Stage
Volumes of CO2: 2.3
Storage Temperature: 5 C

Notes

Also add hop extract of citra – 4ml (double suggested starting point) for big citra nose – add when kegging.

Add special yeast clarity fluid when going into fermentor.

Author: Krispy Brown

EX-CAMRA member and real ale and craft ale fan. I've left CAMRA as I feel they've become more about gaining members (and money) and their petty narrowmindedness around the whole craft/keykeg/cask puts me off them. Good beer is good beer! I do the odd brew myself - having spent a couple of grand more than I should on home brew kit (Braumeister and SS Brewtech gear). Always learning about the craft and the ingredients. I've a blog post here about a day with a local craft brewer making a new beer. I can often be found propping up the bar at Peterborough's best (only) craft beer bar, The Stoneworks. 22 lines of great beer, and decent gin too! I'm probably known by too many of my hometown's landlords, oops. I created the local CAMRA Peterborough Beer festival mobile web app several years ago, and am a regular festival judge helping pick the champion beers. Developer (PHP, Wordpress, Java), Webmaster of many sites, husband and cat owner. I also help put on DIY Punk gigs in my spare time, as part of group of mates called "The Scary Clown Presents...".

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