British Brewer

Recreating the perfect British Pint

27 March
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Recipe Help Request: Fullers Vintage Ale

I have never tried this before but given the level of difficulty I am having getting any information on Fullers Vintage Ale I am going to try the blogosphere.  I am asking if anyone who reads this blog knows anything about the Fullers Vintage Ale recipe.  It is doubly hard as Fullers apparently never makes the same recipe twice.  I have tried many from various vintages and they do taste similar.  I am rather partial to the 2007 but not fussy.

So this is what we know. It is a smooth ale with an ABV 8.5%. We also know from the almanac that almost all Fullers ales use a combination of Northdown, Challenger and Target hops.  They also use Alexis and Chariot for the base and flaked maize with crystal for special grains.  Graham Wheeler in ““Brew Your Own British Real Ale”” has both his ESB and Pride clones using a tad of black malt though I can find no evidence that it is used in the original.  Finally Fullers uses the same yeast for all its brews.  I have some Wyeast London ESB in the fridge so I am set there.

So that is what I have. As I get some feedback I will begin to structure a recipe and post hopefully some time next week.

Now off to brew.

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26 March
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Hydes Original Ale

I am having one of those weeks, travel, long work days. Just really crazy.  It has also been the week I have received my largest volume of reader mail.  I do my best to get through them all and try to work on every request so please bear with me if it takes a few days.

I got asked a great question the other day from local MA student who had recently spent time in Manchester Uni, in NE England. He his home now and was really interested in brewing a full-mash version of a local Manachester brew Hydes ESB.  As luck would have it I actually have a copy of a Hydes Original full-mash clone which I passed along.  I checked the clone with the company’s website and confirmed the malt bill and hops used were the same.

Hydes is a Manchester Brewery founded in 1863, one of the few left in the city since Boddingtons was closed by InBev, and its one of the very few family owned independents left.  For those that want to try the brew I have posted it on Hopville.  Be warned it is a full mash version and not my usual extract but I am sure you can figure out how to replace the base 2-row with Light DME.  Full disclosure, I have not tried this brew and cannot attest to its accuracy.  The source of the clone is Graham Wheelers hot of the press new edition of “Brew Your Own British Real Ale”. I had an older revision but the new one has updated processes and recipes and well worth the few bucks to buy. Happy Friday 🙂

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22 March
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On Tap (Mar 22nd 2010)

It has been a wonderful weekend and a great first day of spring. We had clear blue skies and temps in the 70s. Pretty lite beer weekend due to the great weather, I even had a Saison on deck ready to brew. But the weather came as such a surprise we just had to get outside and prep the garden and prepare the planting beds ready for the veggies. It was also a weekend to meet up with homebrew friends (and readers of this blog) to discuss and more importantly drink homebrew. Thanks to Kurt and Kristen for a wonderful afternoon and your IPA was really worth the wait. I love the burner setup outside and now I have to get myself a similar rig as the weather gets warmer. Who knew the uses for an old bilge pump would include bottle sanitation.

I did get some beer time in but only to move brews around. I also kicked off research into my next recipe, a Fullers Vintage Ale, a classic and probably my favorite Old Ale. Its taking a while to piece together as there is very little data out there. Any help on resources to figure out hop and malt mix greatly appreciated. On that note here is the On Tap Update.

Primary

  • Nothing going right now but have a NB Petite Saison d’Ete (translate as little summer season) ready to go and am working on a Fullers Vintage Clone

Secondary

  • Old Speckled Hen clone ( 1 week (p) 1 day (s) ) – The Thames Valley yeast went nuts, and came in a whopping 82% attenuation (expected 77%), the rough sample appears good and the colour seemed to work though maybe a little lighter than the burnt gold I was shooting for.
  • 115th Dream Imperial IPA ( 2 wks (p) 1 week (s) ) – A rather extreme IPA, high in ABV and a whopping 120 IBUs with over a 1 lb of hops using a technique called Hop Bursting I covered a few weeks back. It came out of the primary a whopping 1015 FG, almost 83% attenuation from the mighty American Ale yeast and checking in at over 10% ABV, now on week 2 of its 6 week rest.

Bottle/Keg Conditioning

  • Olde Luddite English Strong Ale (1 wk(p) 3 wks (s), 1 day (b) ) – A new Old Ale kit from Northern Brewer, thought I would add some Old Ale kits to my current Old’s and Browns series. Came out of the secondary a beautiful deep copper, crystal clear and tasting great. So begins week 1 of a 4 week rest before drinking.
  • Theakston Old Peculier Clone (1 wk(p) 3 wks(s) 1 wk (b)) – My first pass at this classic old ale, FG came out in range along with the colour, that is all we can ask. Week 2 of a 6 week rest before drinking.
  • Twelfth Night Stout (2 wk (p), 2 wks (s), 3 wks (k) ) – A new extract clone recipe of Rogues Shakespeare Stout from Northern Brewer featuring the PacMan Ale yeast strain from Rogue. This one is an ass-kicking 70 IBU stout sitting in the keg and in its 4th and final weeks rest.
  • Lord Fatbottom Ale (1 mth (p), 3 mths 2 wks (s)) –well into the second half of its 6 months rest.

Drinking

  • Fullers London Pride clone (1 wk (p), 1 wk (s), 5 wks 3 days (b) ) – came out crystal clear from the primary with the FG exactly on target. Tasting great and promoted to the permanent recipes page. See review from earlier in the week. We have been hitting this mini batch a little hard and only have a 6 pack left.
  • Spitfire Premium Ale clone (1 wk (p), 2wks (s), 6 wks, 3 days (b)) – my 2nd pass at Spitfire Ale, the Shepherd Neame classic from Kent UK. Only a couple left 🙁
  • Grateful Dead Guy Ale (1wk (p), 2wks (s), 6 wks 3 days (b)) – another special edition kit from Northern Brewer featuring the newly released PacMan Ale yeast strain from Wyeast/Rogue Breweries, this one is a Rogue Dead Guy Ale clone. I did a side by side taste test with an actual Rogue Dead Guy Ale, colour and flavour are so close its hard to tell which one was which. Good job NB.
  • Dogfish Head 90 min IPA clone (1 wk (p), 3 wks (s), 4 mths 1 wk (b) ) – Continues to mature with age. Cracked a couple open this weekend and this ale continues to improve with age.
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20 March
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Tips and Tricks: Dry Hopping

HopsWe have discussed hops on many different occasions on this site. This weeks tip though is focused solely on one aspect of hops, dry hopping.  Dry hopping is the process of adding hops to secondary fermenter and the alcohol in the conditioning ale stripping the beta acids (that deliver the flavour and aroma) from the hop.  Beta acids are water soluble and much of the aroma captured in the last few minutes of the boil through late hop additions do just evaporate out through the airlock so dry hopping is a way to keep the strong hop flavours, especially important in American IPA’s

But dry hopping can clog up the system.  The hops leave particles in the beer, and do not assist the ale in clearing, which is one of the functions of the secondary fermentation process.  Bits get into bottles and lead to heavy sediment. It can be hard to siphon or rack a dry hopped secondary due to clogging.  Of course if you can afford a filtration system stop reading, your beers are bright and beautiful and we are jealous.  For those that do not (that would include me) get some cheese cloth, place your hops inside, tie a not and drop in the secondary.  Trust me, you get all the benefits without the mess or the need for an expensive filter.

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17 March
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Recipe Update – Fullers London Pride clone (9/10)

Fullers London PrideWell they say good things come to those who wait and so it has come to pass with this the final clone of the English Pale series, the Fuller London Pride, started at the end of January of 2010 and opened yesterday to much fanfare.  This clone really does have a high standard to reach. Not only is it a very tasty and popular commercial brew but it is also one that is relatively easy to come by in the USA.  So in order to really put this clone to the test I went out and acquired a bottle of the real stuff in order to perform a side by side taste test.  The results were revealing.

The side by side test

The ‘real’ Fullers London Pride

The BritishBrewer Fullers London Pride Clone

First the colour and head.  I have included pictures as evidence, taken at the same time in the same light on the same camera to ensure accuracy.  As the picture demonstrate the brew color is on the money though not as bright due to lack of filtration. The head is slightly off but the clone is bottle conditioned and the commercial bottle is force carbonated. The mouthfeel is identical which I can attribute to the Burtonization of the water.

So what about the taste, something a little difficult to demonstrate on a blog or with a camera.  It is close, which is why I gave the brew a 9/10.  As a reminder the The Real Ale Almanac described the beer as an:

Astonishingly complex beer for its gravity, a marvelous melange of malt, hops and fruit.

and the Brew Your Own British Real Ale” as a:

…fine for drinking on its own or with full flavoured food. A multi-layered delight of malt and hops and a deep intense finish with hop and ripening fruit notes.

The taste definitely lives up to the billing. This beer has a very simple malt bill and its the balance of hops that makes the beer dance on your tongue and it is the hops that I am going to alter to make this ale a 10.  I have been using the Tinseth formula up till now and the one small issue I have with all my English Pale clones has been the strong hop character of the ale.  This is partly a benefit of homebrew as the ales are fresh, bottle conditioned, unfiltered and unpasteurized, so who really knows what a commercial pint of Fuller Pride sampled directly out of the barrel really tastes like.  But I am going to experiment using the Rager formula, which promotes less hops per IBU and I have made the necessary adjustments for the London Pride clone promoted to the permanent English Pales recipe page.

The ale was easy to brew. The White Labs Fullers yeast (#WLP002, Attenuation 63-70%, Flocculation: Very High) worked as advertised, the ale was in the secondary for a week and in the bottle for 4 weeks.  I cannot express how happy this ale makes me, and not just the alcohol, its a true taste of South West London, my home and a place of many memories from rowing past the Fullers brewery to drinking in many a Fullers Pub.

So please enjoy and try your own version.  This wraps up the English Pale series. The next time we brew the Pales it will be to perfect some of the recipes that fell short the first time around. Its been an experience, I have definitely got more comfortable with the ingredients and this probably attributes to why the ratings have improved from one recipe to the next.  Here is the final breakdown:

This is truly a great line up of Ales with a magnificent history, so please brew a couple and pass along your feedback. None of these recipes made 10/10 so we have 1 point to make up.  Next up will be the first review in the Old and Browns series, the Theakston Old Peculier, but given the aging requirements for this ale it won’t be for a while.

Happy St Paddy’s Day to one and all.

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15 March
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On Tap (Mar 15th 2010)

What a week, the wife and kids have been in San Diego, I have been as sick as I think I have ever been, I managed to finally watch Beer Wars and even brewed some beer.  Well brewing beer wasn’t the forgone conclusion I thought it was going to be with the family away. Getting the flu, immediately followed by a stomach virus actually left me not wanting to even smell ale, a first for me, let alone the pungent delicious aromas of boiling wort filling my house.  It was not until Sunday I finally felt well enough to move some ales around and get my Old Speckled Hen clone underway.  I am looking forward to the rest of my time alone, I hope to get my Fullers London Pride clone review done and finally begin my malt post which I have been working on but it has been taking a while.  So hears to staying healthy for a week, drinking some great beer and happy reunions when the family returns all sunned up from San Diego, its time for an On Tap Update.


Primary

Secondary

  • 115th Dream Imperial IPA ( 2 wks (p) 1 day (s) ) – A rather extreme IPA, high in ABV and a whopping 120 IBUs with over a 1 lb of hops using a technique called Hop Bursting I covered a few weeks back. It came out of the primary a whopping 1015 FG, almost 83% attenuation from the mighty American Ale yeast and checking in at over 10% ABV, so begins week 1 of its 6 week rest.
  • Olde Luddite English Strong Ale (1 wk(p) 2 wk 1 day (s) ) – A new Old Ale kit from Northern Brewer, thought I would add some Old Ale kits to my current Old’s and Browns series.  Final week of its 3 week rest.

Bottle/Keg Conditioning

  • Theakston Old Peculier Clone (1 wk(p) 3 wks(s) 1 day (b)) – My first pass at this classic old ale, FG came out in range along with the colour, that is all we can ask. But the tail does not end here.  As reported the yeast fired up again leaving a layer of cake on the surface of the secondary and sure enough I retested the FG before bottling and it had fallen from 1016 to 1012, the yeast in my cellar is really rocking this year.  Smelled delicious but definitely in for at least a 6 week rest before sampling.
  • Twelfth Night Stout (2 wk (p), 2 wks (s), 2 wks 2 days (k) ) – A new extract clone recipe of Rogues Shakespeare Stout from Northern Brewer featuring the PacMan Ale yeast strain from Rogue.  This one is an ass-kicking 70 IBU stout sitting in the keg and in its third week rest out of  four.
  • Lord Fatbottom Ale (1 mth (p), 3 mths 1 wk (s)) –beginning the second half of its 6 months rest.

Drinking

  • Fullers London Pride clone (1 wk (p), 1 wk (s), 4 wks 3 days (b) ) – came out crystal clear from the primary with the FG exactly on target. Looking forward to seeing how this brew finishes off.  So its done, its great, special review to come this week. Yeah I am really happy about this one.
  • Spitfire Premium Ale clone (1 wk (p), 2wks (s), 5 wks, 3 days (b)) – my 2nd pass at Spitfire Ale, the Shepherd Neame classic from Kent UK.  I am drinking one now as a matter of fact.
  • Grateful Dead Guy Ale (1wk (p), 2wks (s), 5 wks 3 days (b)) – another special edition kit from Northern Brewer featuring the newly released PacMan Ale yeast strain from Wyeast/Rogue Breweries, this one is a Rogue Dead Guy Ale clone. I did a side by side taste test with an actual Rogue Dead Guy Ale, colour and flavour are so close its hard to tell which one was which. Good job NB.
  • Dogfish Head 90 min IPA clone (1 wk (p), 3 wks (s), 4 mnths (b) ) – Continues to mature with age. Cracked one open last night on its 4 month birthday. It continues to age beautifully, really smoothed out and I still think it could a few more months. I will pace these for a while.
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13 March
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BeerWars, The Movie

So back in January during my rants against the mega-breweries closing down British real ale breweries I briefly mentioned the movie “Beer Wars” (trailer here), a documentary on the battle raging between the mega-breweries and the small independents in the USA.  Well tonight the wife and kids are away on school break in sunny San Diego and I am home bound in cold wet Marshfield.  To make matters worse I am on the tail end of one of the most painful bouts of flu I have ever had followed immediately by a nasty 24 hour stomach virus.  I had planned to brew beer today and then crack open my London Pride clone and write the review but I am feeling really fragile and been bed ridden for the best part of the day and the thought of food or beer is not sitting well in a churned up belly.  So what better way to pass a quiet evening in than to rent Beer Wars on iTunes and jot down some thoughts.

The documentary starts off with an overview of the US beer industry, the 3 big guys, Anheuser, Miller and Coors controlling 78% market share with the remaining 22% being contested by a mere 1400 breweries. Does not sound like war to me it sounds like domination especially considering that 50% of all consumption is an Anheuser brand.  The movie then goes down into some history of how the giant 3 have grown over the last 50 years, essentially all selling the identical beer to the American public, one indistinguishable from the other (Anat Baron, Producer, writer and narrator) even does a taste test to prove it with die-hard Bud, Miller and Coors drinkers not being able to tell one from the other.  Not hard really, I would have better luck telling you Marshfield town tap water from neighboring Scituate water.

The narrative moves swiftly on to the small independent brewers focusing on a local South Shore of Boston gal, Rhonda Kallman (whom I have met a few times around town, typically in the old Mount Blue Restaurant) and my personal favorite Dog Fish Head Brewery in Delaware.  The contrast between the big and little guys is the most startling part of the documentary. We have the big guys buying massive blocks of advertising (apparently Anheuser spends $800M per year), sponsoring every sport under the sun, with Bud even sponsoring the Presidential debate. Then  we have Sam the founder of Dog Fish calling his winning the hearts and minds (and beer mugs) of the US population one individual at time, the ground war.  It felt good to know that homebrewers like myself, but with passion and a certain risk taking sensibility like Sam, were out there helping America finally learn what the rest of the world has known for centuries, what beer really tastes like.

But it’s at this point the movie lost me for a while, it became less about the beer and more about the politics. How through lobbying (Bud contributed more than guns and tobacco combined) and unfair practices the big guys stop the little guys, making it hard to enter the market and blocking them when they do.  I guess its not meant to be easy, I have worked in the finance industry long enough to know the playing field is never flat. It takes hard work and a certain level of insanity to succeed.  But I think this part of the movie missed the point, its about the beer, and people who want to will always find good beer. Back in the 70’s and 80’s people could not get anything but bland old Bud so the homebrewers rose up and from this movement over 1400 microbreweries now exist. Today I can go down to my local and get a Dog Fish Head 90 min and I don’t mind paying premium for it because it is worth paying 4x what a Bud is worth. Its a steal considering the beer is 10x better on every level. The people that drink Bud, drink it, its what they have been told to like for generations and they like it, its a commodity, cheap and cheerful. It’s about choice, of course the big guys play unfair, its their market to lose and they have nowhere to go but down.

Towards the end of the film it does all come together, the little guys are growing, the big guys are going global, and Government is getting fatter. Sounds like America to me. The one piece that made me upset was the role of Government and the 37,000 beer laws the movie cites.  It has been sad to see my home country become such a “Nanny State” where the Government is so deep into your personal space they can tell you what you can and cannot eat. The end of this movie reminded me that the US is going down the same path.  Whether you are a Big Gov liberal or a Small Gov Consrvative no Government should be deep inside your home telling you how to live your life and control the choices we can make, especially when those choices are influenced by deep pocketed corporation with nothing but global growth on the bottom line.

I am happy I am free to brew my own beer, to buy from a good selection of brews, but for how long? This was not covered in the movie but how long before the Beer Lobby influences some bozo Senator to put a Bill before Congress to stop homebrewers like me from brewing “for our own good”, just like smokers cannot smoke anywhere anymore or New Yorkers cannot get MSG and the lastest in NYC is the attempt to ban salt in food, because it for our own good.

I know what is good for me, I know my beer is great, because I know whats in it, which is more than I can say for a Bud.  It was a good documentary, every beer drinker should see it. It was not my favorite documentary this year. That honor belongs to “It Might Get Loud”, the documentary covering a Summit meeting of 3 guitar legends Jimmy Page, The Edge and Jack White.  That was an amazing film.  But go rent Beer Wars today, get informed and have a beer.

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10 March
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Tips and Tricks: Cooling wort in a kitchen sink

We covered cooling the wort in the “Getting Started” series. This is a more detailed description of how to easily cool the wort in two steps and get consistent results (assuming a 3 gallon boil). 1) Once the boil is finished place kettle in the sink, if you do not have a sink then a large plastic bucket.  Fill the sink with cold tap water up to the level of the wort stirring with a spoon to aerate the wort for 60 seconds.  Empty the sink and refill to the same level stirring for 2 minutes this time.  This will bring the temperature down to 110ºF every time, I do not even use a thermometer anymore, its that consistent.  2) Now fill the kettle with cold water to the 5 gallon level and the temperature will be ~75-80ºF and perfect for pitching the yeast.

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08 March
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On Tap (Mar 8th 2010)

Apologies for the lite post week, it was a busy busy week at work with some long days and late nights. I was also working on a long post for Inly School where I am a sometime middle school guest speaker on a class I taught recently. I will post the link when its up.  It has been a lite brewing week to as all the fermenters are full with fermenting and conditioning ale with none ready to be transferred.  This is the problem when brewing heavier ales like Olds and Imperials, they take longer to condition. Take a look at my cellar inventory below and everything is in a 3-4 weeek rest (or more).

So we will have to wait a week for the Speckled Hen clone to get started.  My kids are off school this week and next and the wife and kids will be off west to LA to visit Grandpa, so poor old me is left alone with my brewing, I just wish I had timed this event better. I could have used the time to brew every night! I will miss them all very much, its a big empty house without the sound of two little boys running around, laughing, joking.. I digress, its time for the On Tap update


Primary

  • Nothing new I am afraid, Old Speckled Hen clone is on deck
  • 115th Dream Imperial IPA ( 1 wk  1 day (p) ) – A rather extreme IPA, high in ABV and a whopping 120 IBUs with over a 1 lb of hops using a technique called Hop Bursting I covered in a post last week.

Secondary

  • Olde Luddite English Strong Ale (1 wk(p) 1 wk 1 day (s) ) – A new Old Ale kit from Northern Brewer, thought I would add some Old Ale kits to my current Old’s and Browns series.  The FG came in at a whopping 1017, almost 6% over its max attenuation, the Fullers yeast was very active.  The sample was already very clear and I could have drunk the whole thing.  This is going to be a very smooth, Old Ale. Second week of its 3 week rest.
  • Theakston Old Peculier Clone (1 wk(p) 2 wks, 2 days (s) ) – My first pass at this classic old ale, FG came out in range along with the colour, that is all we can ask. It would appear the Trappist yeast is still working as a thin layer of yeast cake has formed on top of the conditioning ale. I am intrigued to find out what if anything has happened to the FG.  Now for 1 more week in the secondary

Bottle/Keg Conditioning

  • Twelfth Night Stout (2 wk (p), 2 wks (s), 1 wk 2 days (k) ) – A new extract clone recipe of Rogues Shakespeare Stout from Northern Brewer featuring the PacMan Ale yeast strain from Rogue.  This one is an ass-kicking 70 IBU stout sitting in the keg and in its second week of rest. I will probably give this at least 4 weeks before tapping
  • Fullers London Pride clone (1 wk (p), 1 wk (s), 3 wk, 3 days (b) ) – came out crystal clear from the primary with the FG exactly on target. Looking forward to seeing how this brew finishes off.  In its final week of conditioning so look for a review on this next week, I am quietly confident.
  • Lord Fatbottom Ale (1 mth (p), 3 mths 1 wk (s)) –beginning the second half of its 6 months rest.

Drinking

  • Spitfire Premium Ale clone (1 wk (p), 2wks (s), 4 wks, 3 days (b)) – my 2nd pass at Spitfire Ale, the Shepherd Neame classic from Kent UK.  Completely cleared but with a lot of sediment in the bottle.  Took 2 weeks to finish off the first case, a little too quick given this ale is pretty strong. It just goes down like a session brew 🙂
  • Grateful Dead Guy Ale (1wk (p), 2wks (s), 4 wks 3 days (b)) – a new special edition kit from Northern Brewer featuring the newly released PacMan Ale yeast strain from Wyeast/Rogue Breweries, this one is a Rogue Dead Guy Ale clone. I did a side by side taste test with an actual Rogue Dead Guy Ale, colour and flavour are so close its hard to tell which one was which. Good job NB.
  • Flowers Original Ale clone (1 wk (p), 1 wk (s), 6 wks (b)) – my first brew of 2010 and first attempt at the classic Flowers recipe. See review from earlier, its a winner and has been promoted to the recipe page. Only one bottle left, this will be finished this week. Only made 3/4 of a case and look forward to brewing a full 5 gallons later in the year. This ale appears to peak in flavour after ~5 weeks in the bottle
  • Dogfish Head 90 min IPA clone (1 wk (p), 3 wks (s), 3 mnth 3 wks (b) ) – Continues to mature with age, been holding back on these to see how they pan out.
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06 March
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Hop Bursting

HopsAs those of you who read this blog will know I have been talking about a technique called hop bursting recently. I first tried it back in Nov 2009 whilst brewing my Dog Fish Head 90min without really knowing how the technique worked. I came across it again last week when I brewed Northern Brewers 115th Dream Imperial IPA, which shipped with over 1 lb of hops.  How can you add 1 lb of hops to a 5 gallon brew and it not taste disgusting? I was curious and wanted to find out more, especially given how clean the bottom of boil kettle was where the hops had settled while cooling.

First up lets quickly review the big hop post I did a few back. First thing to remember are the Alpha Acids, these cause bittering and are not very water soluble so require an hour of boiling to fully extract. Then there are the Beta Acids, these are water soluble and actually evaporate if left too long in the water. Beta acids provide the hop aroma and flavour.  The more the beta acids evaporate the less the aroma which is why we have flavour additions with 10-15mins of a boil to go and aroma at 0 mins.

Hop bursting is a technique used to impart massive amounts of hop flavour and aroma by adding large amounts of hops at the end of the boil, typically beginning at the last 20 mins.  Some bitterness will be extracted (use the formula in the hop post and replace the 60 with 15 and play around with the hop quantity and see how much more you would need) so in order to get the same level as a 60 min boil we need a lot more hops. Here is a simple example. In the hop post we calculated the IBU’s for a recipe with a 60 min and a 15 min addition, it was approx 29 for a 2.5 gl batch using 1.2 oz of hops.  What if we want to create a 29 IBU recipe with a big hop aroma and flavour using hop bursting with no bittering hops at the beginning of the boil.

Here is the same formula used in the hop post but this time using 4 additions a 15 min, 10, min, 5 min and 1 (assuming we are a using a generic 4.5% alpha hop in pellet form, same batch size and OG).

First calculate the utilization for each addition

15 min: ( 1.65 * 0.000125^( 1.060 – 1 ) ) * ( ( 1 – 2.72^( -0.04 * 15 ) ) / 4.14 ) = 11.54%

10 min: ( 1.65 * 0.000125^( 1.060 – 1 ) ) * ( ( 1 – 2.72^( -0.04 * 10 ) ) / 4.14 ) = 8.43%

5 min: ( 1.65 * 0.000125^( 1.060 – 1 ) ) * ( ( 1 – 2.72^( -0.04 * 5 ) ) / 4.14 ) = 4.64%

1 min: ( 1.65 * 0.000125^( 1.060 – 1 ) ) * ( ( 1 – 2.72^( -0.04 * 1 ) ) / 4.14 ) = 1%

Next calculate the IBU for each addition given its utilization and add them all together to make the final total.

15 min: 11.54 * ( 0.5 * ( 4.5 / 100 ) * 7490 ) / 2.5 = 7.78

10 min: 8.43 * ( 1 * ( 4.5 / 100 ) * 7490 ) / 2.5 = 11.37

5 min: 4.64 * ( 1 * ( 4.5 / 100 ) * 7490 ) / 2.5 = 6.25

1 min: 1 * ( 3 * ( 4.5 / 100 ) * 7490 ) / 2.5 = 4.06

Total IBU = 29.46

So we have an ale with the same IBU made with the same hops as the traditional bittering method except the hop load is 5 1/2 oz as compared with 1.2 oz giving us an really BIG hop flavour and aroma. Another advantage for homebrewers like myself that do not own filtration equipment is strong hoppy IPA’s can be made without the need for a dry hop addition and all the additional complexities that come along with the process.

So go ahead and try the NB recipe, its a 1 lb of hops for a 5 gallon brew, have no idea how it will turn out but I love the quote on the web site which I will end this post with:

If you serve this beer to a Michelob Ultra drinker, he or she will cry. If life were a 1950s horror flick, this I2PA would climb out of the fermenter and turn on its master. Your dentist does not want you to brew or drink this beer. Sorry in advance about your tooth enamel

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