Showing posts with label Wyeast 1968 London ESB. Show all posts
Showing posts with label Wyeast 1968 London ESB. Show all posts

Wednesday, November 2, 2011

#24 Buster's Bitter (Batch No.2) / Bottling the Belgian Tripel / Baking "Mashed" Bread

The Scottish Wee Heavy
For what will most likely be my last brew with this particular pitch of Wyeast of 1968 London ESB ale yeast, I wanted to brew another batch of a beer I brewed last fall in honor of my grandfather. The beer last year was brewed with the 1968 strain and came out great, so I wanted another chance to brew this beer with a few tweaks.

The malt bill for this beer was formulated to a certain extent out of necessity. I'm planning on making a move soon, and I'm not sure I'll have the chance to brew all-grain batches once I move. There's a fair amount of base grain and a few specialty grains I am looking to use up, so the base came from the remainder of a bag of British 2-row, some American 2-row, and some Carastan malt (aka British Crystal). I liked the influence of American Special Roast Malt so much in the Ordinary Bitter that I chose to put a small amount in this grain bill too. The Carastan, American Special Roast, and Crystal 120 are substitutes for Aromatic Malt, and Crystal 60 that I used in the previous batch. I chose to use the same hops but with a different hopping schedule; I chose not to "pepper" in hops as I had with the previous brew, but keep Northern Brewer as a bitter/flavor hop and let the EKG and Fuggles do all the aroma and dry hopping. The first batch of Buster's Bitter finished with a gravity that was a bit too low for my taste, so I chose to lower the mash temp as well this time around.

Buster's Bitter (Batch No.2)

Batch Volume (Gal): 6.0
Pre-Boil Volume (Gal): 7.0

Total Grain (Lbs): 14.5
OG: 1.065   Anticipated FG: ~1.012   Anticipated ABV: ~7% ABV

IBUs: 46
SRM: 11.3
Brewhouse Efficiency: 74%
Boil Duration: 95 min

Grain                                                  (Lbs/oz.) (%)
Malteurop North American 2-row        7       48.3
Pearl British 2-row                                  5       34.5
Carastan Malt                                           1        6.9
Wheat Malt                                             8 oz.    3.4
Victory Malt                                            8 oz.    3.4
Crystal 120                                              4 oz.    1.7
American Special Roast                         4 oz.    1.7

Hops                      (AA%) (IBU) (Oz.) (Boil[min])
Northern Brewer  12.3      41.3    0.8        90
Northern Brewer  12.3       4.8     0.2        30
EKG                         4.5          0      0.5         0
Fuggles                    4.0          0     0.5          0
EKG                         4.5          0      0.5    Dry Hop
Fuggles                   4.0          0      0.5     Dry Hop

Yeast
Repitched ~115 mL of thick, moderately clean 1968 London ESB yeast slurry from Black Butte Porter yeast cake

Water
Ca: 100 Mg: 2 SO4: 134 Na: 25 Cl: 81 HCO3: 84
Mash Schedule
Single Infusion   5 min 140 F, brought up to 150 F 10 min, brought up to 152 F at 15 min, 
15 min mashout at 165 F 
In Mash: 3 mL of Lactic Acid; pH ~5.4
In Boil: 2 g NaHCO3, 6 g CaSO4, 4 g CaCl2

Transferring the Porter off of the 1968 yeast cake
Only two issues on this particular brew day; my mashing continues to be a bit unpredictable and I can't seem to buy an oxygen tank that has any oxygen left in it. The mash for whatever reason began at 140 F after targeting 152 F. I have no damn clue how it started out this low; I preheated as I always do, calculated out my strike temp but missed my target by 12 degrees. Luckily I brought up the temp quickly with boiling water, but this low initial temp may likely produce a drier than desired English Extra Special Bitter. The mash pH as well continues to be unpredictable, and I consistently hit 5.4 pH at mash temps. Not sure this is a bad thing as I often hit this pH and produce beers, but I've found that when I hit 5.1 or 5.2, my beers are much crisper, acidic, and generally more like a commercial example of the style than if I hit a slightly higher mash pH.

The new thermowell for the temp probe
For the second time it seems I purchased a disposable oxygen tank that was completely empty. I have no damn idea how this keeps happening; the first O2 tank I bought had plenty of oxygen, and I know these tanks are not meant to be refilled, so I have no reason to believe that I needed to have these tanks filled in the first place. For the second brew in a row, I had to resort to an old method of aeration which this week happened to be simply sloshing the beer around in the carboy. Hopefully there was a sufficient amount of oxygen mixed into the wort when it came time to pitch the yeast.

I am hoping that I'll have at least a few more chances to brew all-grain before my move, with either a Belgian Dubbel brew or a Biere de Noel with the Trappist High gravity planned soon. If not, I may have to wait a while before I'll have the chance to brew again, so I'm happy that the last few batches I've brewed are ready to drink just before winter comes.
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Bottling the Belgian Tripel


Sanitizing the Belgian Corks
After about a month in the carboy I was able to bottle the Belgian Tripel in 750 mL cork and cage Belgian beer bottles. After the failure of many of the bottles of Belgian Biere de Garde to carbonate in the Belgian beer bottles with plastic stoppers, I knew that I had to go with Belgian corks if I was to ever bottle a batch of beer in Belgian bottles. Fortunately, the wine corker I have works quite well with these corks (with a few modifications) and I was able to bottle the entire batch in both Belgian Beer bottles and Belgian "Champage" style bottles.

I added about 5 ounces of cane sugar to prime these bottles with which should carbonate the beer to about 3.0 volumes of CO2. The flat beer tasted fantastic, so I can only imagine with some added carbonation and a slightly colder serving temp, this beer will be great for winter.

Baking "Mashed" Bread

Mashing the Specialty Grains with a glass of Murphy the Stout Hearted
I've baked a few batches of spent grain over the past year, but this time around I wanted to experiment with some extra specialty grain I had lying around. I threw together some wheat, crystal 60, carapils, crystal 120, and a lot of chocolate malt and mashed it all for about 20 minutes on the stove, then proofed my bread yeast using the resulting wort from the mash. This all went into the mixing bowl with bread flower and baked. The bread had the exact color of Chocolate malt and the roastiness of the malt comes through a bit with a lot of chocolate malt flavor. The two loaves taste great, and I'd really like to see what some "mashed" bread would taste like if I went with a crystal malt instead.
The "mashed" grain bread dough

Wednesday, October 26, 2011

#23 Black Butte Porter (clone #2)


One of my favorite styles of beer is Porter, and I don't think there's a better time to drink Porter than the fall. Although I'm a bit late with this brew, as it won't be ready until mid November, I'm glad to get to brew a beer style I love so much.

Black Butte has been one of my favorite Porters if not one of my favorite beers since I had a couple with my girlfriend out in Portland, Oregon. Unfortunately due to lack of distribution out to the East Coast, I haven't had it for quite a while and cloning the brew is the only way to come up with a beer that at least begins to compare with such a great beer. I brewed a clone of this beer last fall with the Wyeast 1968 London ESB strain, and it was one of the first beers I think I brewed that I was really happy with. I plowed through the keg with my dad and was sad to see it go then, so I'm hoping this brew will at least match the previous attempt.

The current recipe for this clone came from Can You Brew It? on the Brewing Network. It looks very similar to the recipe I went with last year with only a British Chocolate replacing the Black Patent I used last year. Since I was unable to find this lower Lovibond British Chocolate as described in the recipe, my local homebrew store owner suggested some dehusked black malt to give the color of a Robust Porter without an over the top roast quality to the beer. I really love what dehusked black malt does in a beer so I'm hoping it meshes well with the other specialty grains and hops.
Black Butte Porter


Batch Volume (Gal): 6.0
Pre-Boil Volume (Gal): 6.5

Total Grain (Lbs): 13.79
OG: 1.060   Anticipated FG: ~1.012   
Anticipated ABV: ~6.33%

IBUs: 37.5
SRM: 26.4
Brewhouse Efficiency: 73%
Boil Duration: 95 min

Grain                                                  (Lbs/oz.) (%)
Malteurop North American 2-row    10.6     76.9
Wheat Malt                                            1.4      10.2
Crystal 80                                              0.7        5.1
Cara-Pils Dextrin Malt                       0.42       3.0
Chocolate Malt                                     0.42       3.0
Dehusked Black Malt                          0.25       1.8

Hops                      (AA%) (IBU) (Oz.) (Boil[min])
Galena                     14.1    30.3    0.5         90
Cascade                    6.0     6.0      0.5         30
German Tettnang   3.5     1.1       0.5         5

Yeast
Repitched 100 mL of thick, dry, clean 1968 London ESB yeast slurry from Ordinary Bitter

Water
Ca: 117 Mg: 2 SO4: 42 Na: 27 Cl: 66 HCO3: 183

Mash Schedule
Single Infusion   5 min 150 F (aimed for 154-155 F), raised up to 155 F at 15 min for remaining 45 minutes of mash, 10 minute mashout at ~165 F
In Mash: 4 g CaCO3, 2 g NaHCO3, 5 mL of Lactic Acid; pH ~5.4
  added 5 mL of Lactic Acid at 15 min; pH ~5.2-5.1

Overall the brewday went fairly well. I would have preferred to hit a mash temp of 154-155 F for the entire 60 minute mash and has a pH of 5.1 as well. The low mash temperature may not necessarily result in an overly dry beer; the usage of carapils dextrin malt should provide a bit more dextrin sugar in the finished beer, and the 1968 yeast strain is fairly flocculent resulting in a strain that is a relatively low attenuator. This should leave a little bit more of a body to the finished beer if the yeast fails to eat all the available sugars. I think the beer should turn out fairly crisp however due to the malts, salts added, and the pH of the mash I eventually hit. I was a little worried upon tasting the mash runnings; I could taste lactic acid fairly easily. I think the large additions of CO3 and HCO3 likely buffered the Lactic Acid additions, thus leaving me with the high pH to start with. Hopefully the lactic acid flavor will not be apparent in the finished beer.
The mash after a 10 minute mashout at 165 F
I also failed to watch the sparge close enough and ran off too quickly, but luckily I collected only a bit more wort than I had hoped to collect, a mistake that only increased my targeted OG by three points and decreased my targeted water profile by a few ppms in each ion concentration. I don't think this will have any detrimental effects as I've done this a few times before. 

What I am worried about is the fact that I had no oxygen to aerate my wort with once it came time to ferment the beer. Apparently I was sold a disposable oxygen tank that had no oxygen in it. I'm not sure if it had a leak, was empty when I got it, or what the deal was exactly but there was no oxygen to put into the wort. I had to resort to my method of aeration that I haven't used (for good reason) for the past two years at least of brewing. I aerated using a pyrex dish to splash the wort for about a minute; hopefully this won't result in any infection. In addition to the splashing, as I do with every beer, I also splashed the wort as I transferred from the boil kettle to the fermenter. The most I can hope to have put into the wort is 8 ppm of oxygen, not the amount I usually can with oxygen, but hopefully the yeast are healthy enough to ferment this beer well regardless.

In order to repitch the 1968 yeast strain I had to transfer the Ordinary Bitter into a keg. My goal was to partially imitate cask conditioning of this particular beer, so I added about three ounces of priming sugar during the transfer. The 1968 yeast was such a strong flocculator however, that I was worried there would be too little yeast to naturally carbonate the beer in the keg. I added a few mL of yeast from the bottom of the fermenter to ensure I could produce the necessary secondary fermentation. I'm really excited for this beer to condition and carbonate soon as I think it'll make for a great session beer, just in time for some colder weather.

Monday, October 17, 2011

#22 Ordinary Bitter


It's been a long wait for the Belgian Tripel to finish fermentation, and now that it's finally wrapping up activity, I was able to start the new strain of Wyeast 1968 London ESB yeast in an Ordinary Bitter. With all the additional sugar added and the high gravity of the Tripel, it took a while for me to see activity slow and was hesitant to take the beer out of the fermentation chamber too early. I think I'll let it settle out at basement temperatures and bottle it when I get a chance in 750 mL cork and cage bottles while saving the Trappist High Gravity strain for either a Dubbel or Dark Strong/Quad brew later this fall.

The Krausen on top of the Ordinary Bitter
after about 16 hours
Out of the yeast strains that I have used so far in my brewing, the 1968 London ESB strain is by far my favorite. If there was one strain I had to select as my "house" strain, the 1968 would be the one I would go with. I used it last fall to brew a Porter (Deschutes Black Butte clone) and a strong ESB. Both came out fantastic with a slighly sweet finish, very silky, malty, nice fruit flavors, and just overall great beers for fall and winter drinking. This time around I want to use the strain as much as possible, and I'm hoping to step this strain up starting with the low gravity Ordinary Bitter, then progressing to a Porter, and finishing with the same strong ESB recipe I created last year.

"Double-dropping" the Ordinary Bitter
into a second fermenter
Last summer I brewed an Ordinary Bitter with the Thames Valley strain and after hearing about the "Double-Drop" method of fermentation used by the brewers at Brakespear for their Ordinary Bitter, I chose to do the same. Although I made the beer undrinkable with an overzealous addition of gypsum salt, I could taste a nice, unique, and what I thought to be English fruit and malt character in the beer. This could be due to the yeast alone, but I'd like to see what the double drop does to this year's Ordinary Bitter. The beer's been at about 66-67 F overnight and has formed about an inch of Krausen. After "droping" the beer into another fermenting bucket, the beer and active yeast were able to separate from any trub that made it into the fermenter from the boil kettle. I splashed the first gallon of the wort coming from the fermenter into the bottom of the new fermenting bucket, adding additional oxygen into the wort to allow for a unique fermentation. The theory is that adding additional oxygen after fermentation has begun will allow for additional growth of yeast, additional ester production and thus those fruity flavors, and will put yeast cells on different cycles of aerobic metabolism, anaerobic fermentation, and conditioning. I'm hoping this yeast responds well to this process and if not, I'll likely give this beer another shot either before or after brewing up the Porter.

I also plan on trying to serve this beer in a way at least partially resembling a traditional English cask. I'll transfer to the keg, with priming sugar (and hopefully some finings if I can get some before that time), allow that to carbonate and condition, and either serve with a small amount of CO2 at my basement temperature, or serve from the kegerator at slightly colder temps.

Ordinary Bitter

Batch Volume (Gal): 6.0
Pre-Boil Volume (Gal): collected 4.0 of wort, 
     topped up to 6.0 before boil

Total Grain (Lbs): 8.34
OG: 1.036   Anticipated FG: ~1.009   Anticipated ABV: ~3.54%

IBUs: 32.9
SRM: 13.6
Brewhouse Efficiency: 70%
Boil Duration: 95 min

Grain                             (Lbs/oz.) (%)
Pearl (British) 2-row         7        84.0
Crystal 120                       15 oz.    11.5
Special Roast Malt           6 oz.     4.5

Hops                          (AA%) (IBU) (Oz.) (Boil[min])
East Kent Goldings   4.5      25.4    1.25         90
East Kent Goldings   4.5       7.5      0.8         30
East Kent Goldings   4.5        0      0.75          0

Yeast
Pitched Wyeast Activator packet of 1968 London ESB yeast directly into wort

Water
Ca: 100 Mg: 2 SO4: 205 Na: 10 Cl: 29 HCO3: 45
Mash Schedule
Single Infusion   60 min 150 F (aimed for 152-153 F), 10 min mashout at 165 F
In Mash: 5 g CaSO4, 0.5 g NaHCO3, 1 mL Lactic Acid; pH ~5.1-5.2
In Boil: 3 g CaSO4, 1 g CaCl2

Relative to my experience brewing the Tripel, this brewday went great. The only number that I had hoped to hit but failed to was my mash temp. I'm not sure this will be a huge issue for the final beer since there are many variables that could have produced a more dextrinous beer even before I had a lower mash temp, so I'll just have to see how this beer ferments out. I also could have done with a bit more yeast (1.2 packets of yeast or made a starter instead of just pitching one) but I'm sure this beer will ferment fine with the yeast I added. If anything it'll make for a beer that is a bit fruitier and finishes a bit higher, which with my lower than desired mash temp, could be a good thing.
The new "hands-off" grain mill setup
After a few brews with plenty of frustration due to my grain mill, I think I've finally found a happy medium between wet and dry milling. I realized that I have been using a bit too much water to condition my malt before milling and that has just turned my malt into dough on the rollers, causing them to bind up and in essence creating mush instead of grist. I only used about 100 mL of water for this particular grain bill (the suggested rate is about 100 mL per 11 lbs of grain) and it worked beautifully. With some additional time for the grain husks to absorb the water I sprayed before milling, the grist was crushed very easily without having to stop halfway through milling and without any dough buildup on the rollers. The grist looked just as great as it has when I've wet milled properly as well; very pillowy with the majority of grain husks left intact and the starch ground into both large and smaller particles. Hopefully this wet milling process will work with some future brews as wet milling is something I'd really like to continue using as part of my brewing process.

Once this Ordinary Bitter ferments (hopefully within the week) I plan on brewing a Porter with the 1968 strain and then possibly continuing the Trappist High Gravity strain with another strong Belgian ale. It'll be good to have another beer on tap (or "cask") as my supplies of homebrew are dwindling and I need a sessionable beer before football season is over.