Eisbock Homebrew Recipe & Review

Posted on July 1, 2015 by Nick Ladd

Eisbock: Silver Medal in Category 5 Bock at the final round of the 2015 National Homebrew Competition

In many ways, contemporary American craft beer is constantly chasing extremes. Extreme hops, malt, and alcohol are the norm. Eisbock can be seen as one of the original ‘extreme’ beers. It predates the American craft beer movement, but is equally as intense and flavorful as some of the most coveted craft beers. Eisbock manages to maintain a smooth lager character while being a showcase for the intense malt flavors inherent to many of the great German malts.This recipe has done well in competition, winning a silver medal in the Bock category at the final round of the National Homebrewer Competition in 2015.

The myth of eisbock is that it owes its origin to a brewer who inadvertently left a barrel of dopplebock outside in the winter which led to the freeze concentration of the nectar inside. True or not, the science is sound and methodology similar to what I used for this beer. Alcohol inherently freezes at a much lower temperature than water. This trait can be exploited by brewers, allowing them to effectively concentrate the alcohol in their beers while discarding some of the water content.

When designing an Eisbock, my intent was to specifically formulate a base doppelbock that would be lean on caramel character in order to avoid a cloying sweetness once the flavors are intensified during freeze-concentration. Additionally, I wanted to keep the IBUs low as it is has been my experience that freezing a beer will concentrate the bittering compounds. The same logic can be applied to alcohol heat. Providing for a healthy fermentation is key to avoiding excessive fusel alcohols which will be concentrated in the final beer. My focus was on creating rich toasty notes with a solid Munich malt base while including a touch of high lovibond caramel to throw in a bit of dark fruit flavor that is delicious in these types of beers.

Utilizing C02 and a jumper line to transfer beer keg to keg during the freeze-concentration.

The trick to doing this beer correctly is in the freeze-concentration. I went through approximately 8 freeze cycles utilizing two 3-gallon corny kegs and my kitchen freezer. The basic methodology is to freeze a keg of the beer and then push out the remaining unfrozen liquid to a second keg. It is extremely important to use closed vessels purged with CO2 in order to minimize any risk of oxidizing the beer. Patience is key; multiple incremental freezes that only push a small volume of liquid at a time will help insure you’re pulling out the most concentrated liquid. In the end, I pulled out approximately 32% of the original volume. The liquid that was discarded typically had a specific gravity of near 1.000 meaning that it was primarily water. Sensory analysis of the discarded liquid confirms that it was primarily water. This freeze concentration effectively took my ABV from approximately 7.5% to over 11%.

Eisbock Recipe

Specifications:
Size: 3.25 gal
Efficiency: 74%
Attenuation: 68%

Original Gravity: 1.084
Terminal Gravity: 1.026 (measured)
Color: 18.88 SRM (Before Freeze)
Alcohol: 7.5% ABV (Before Freeze. Approximately 11% after freeze.)
Bitterness: 22 IBU (Before Freeze)

Malt Bill:
7.5 lb (68.2%) Weyermann Munich TYPE II
3 lb (27.3%) Weyermann Pilsner Malt
2 oz (1.1%) Weyermann Caramunich® TYPE III
6 oz (3.4%) Hugh Baird Crystal 130

Mash Profile:
148°F – 60m
155°F – 15m
168°F – 5m

Decoctions used between each step.

Water Treatment:
Extremely Soft NYC Water
2g Gypsum (to mash)
4g Calcium Chloride (to mash)

Hopping:
0.75 oz Hallertauer Mittelfrüher (4.0% AA) – 60 m
0.5 oz Hallertauer Mittelfrüher (4.0% AA) – 10 m

Kettle Additions:
0.5 ea Whirlfloc Tablets (Irish moss) – added during boil, boiled 15 m
0.5 tsp Wyeast Nutrient – added during boil, boiled 10 m

Yeast:
White Labs WLP833 German Bock Lager

Tasting Notes:

Judged as a BJCP 5D. Eisbock

Aroma (10/12):
Rich and decadent malt fills your olfactory nerves. The malt is toasty and reminiscent of heavily browned bread crust. There is a background of rich dark caramel providing additional complexity. Enticing aromas of dark fruit, plum, fig, and perhaps cherry waft from the glass. As it warms, a bit of ethanol is apparent and true to the style.

Appearance (2/3):
Deep brown with only the slightest of tan heads that quickly dissipates. Beer is nice and clear due to the prolonged lagering period.

Flavor (17/20):
Huge display of rich malt. There is some residual sweetness that manages to be kept in balance by some intense toasty, almost drying, malt notes. The malt is wonderfully complex with a round nuttiness, followed by fig, molasses, burnt sugar, and sourdough toast. There is just a hint of hop bitterness and no flavor. Fermentation character is clean with a low level of hot alcohol. No ester or other fermentation character.

Mouthfeel (4/5):
Silky full-body with a smooth medium-low level of carbonation. Mouthfeel is just a touch sticky, but otherwise quite luscious.

Overall Impression (9/10)
Beautiful showcase of the melanoiden-rich Munich malt that comprises the bulk of the grain bill. Rich and decadent, it would be tough to consume more than a bottle of this at a time. This Eisbock is a great sipper to spend some time with slowly consuming and contemplating the broad spectrum of flavors it contains. The beer would be absolutely delicious paired with a sharply acidic aged cheddar.

Excellent (42/50)

SMaSH Mandarina Bavaria vs Hallertau Mittelfruh Pilsners

Posted on July 22, 2014 by Nick Ladd

Both SMaSH pilsners were brought the annual NYC Hombrewers Guild picnic — the perfect beer on a hot summer day.

About 6-weeks ago I brewed a couple of SMaSH pilsner lagers, inspired by Firestone Walker Pivo Pils, and featuring 100% Weyermann Pilsner malt. For hopping, one was brewed solely with a new German varietal called Mandarina Bavaria, where-as the other was brewed with the more traditional Hallertau Mittelfruh.

Rather than do a full BJCP-style evaluation of each beer, I’ll describe the malt and yeast character present in both beers, and then attempt to describe the real hop character differences that exists between the beers.

Malt Character:
Clean and crisp is the best way to describe this malt. I was able to achieve 80% + apparent attenuation which lends a nice lean character without becoming watery. Although I missed the very high level of attenuation found in Pivo Pils (88%), this beer still captures the dryness that makes Pivo so great. The standard Weyermann Pilsner malt I used has a nice light bready, and ever-so-slightly grainy character that is very nuanced. This is a great neutral malt that begs to be set down as a base to bounce other flavors against. The Weyermann malt does not feel as round and bready as other pilsner malts I have used, in particular Dingemans pils from Belgium which features an almost honey-like sweetness. Using this malt in this manner clearly illustrates how similarly colored malts from different maltsters can have dramatically different characteristics.

Yeast Character:
Unfortunately, the homebrew shop I purchased from did not have the Wyeast 2124 lager yeast used by Pivo Pils in stock. As a back-up, I brewed with my go-to lager yeast WLP833 from White Labs. This yeast performs superbly, attenuating well, and cleaning up any residual diacetyl. There is a very light fruity ester present in the beer, but other than that, the beer is clean and neutral, setting the table to showcase the hops and malt.

Hallertau Mittelfruh Hop:
This hop look you straight in the eye and without blinking proudly proclaims its German heritage. This hop features a classic, and very nuanced herbal quality. When searching, there is a low white pepper note as well. On the finish is a slightly grassy, almost tea-leaf like flavor which I attribute to the fact that I needed to use nearly twice as much of this hop to hit the same IBU levels provided by the higher alpha Mandarina Bavaria. The quality of the bitterness in this beer is very smooth, and does not linger.

Mandarina Bavaria Hop:
Mandarina Bavaria is often cited as a next generation German varietal being bred to compete with the novel hop varieties being grown in the Pacific NW. True to its name, this hop has a nice round sweet mandarin and tangerine flavor that comes across almost as candied orange that while present, is much more subtle than the citrus displayed by other types of hops. Additionally, there doesn’t seem to be any of the bitter, pithy citrus character that is found in many varieties. There is none of the pine or resin flavors which dominate other hops. This hop does not match the brash intensity and massive oil levels found in the newer American hops. This hop works really well in this beer, providing a sweet citrus component without dominating the malt or other lager characteristics. Mandarina Bavaria shines in more nuanced beers, but probably won’t be able to stand up to the Simcoes, Citras, or even brasher South Hemisphere hops that dominate the IPA world. That said, there is a definite place for this hop in the ever-expanding tool chest of hops modern brewers have access to.

SMaSH Pilsners – Recipe Inspired by Pivo Pils

Posted on July 16, 2014 by Nick Ladd

Lately I’ve been drinking a lot of Firestone Walker’s Pivo Pils. This beer delivers a terrific hop punch set against a modest amount of alcohol and absolutely dry fermentation character. An immensely drinkable beer during the dog-days of summer. Firestone Walker classifies this beer as a ‘hoppy pilsner’; a short and simple sub-title, but perhaps a bit light on providing a comprehensive description of the beer. In many ways, this beer reminds me of a fresh German pils, mainly due to its austere dryness. If you take a classically lean German pils and then beef it up with late kettle and dry hopping as well as a bit firmer bittering, you’ll likely get pretty close to the character of Pivo.

Intrigued by Pivo, I set out to design a beer that captures this malt character, and then use it as a platform for testing out a couple of different German hop varieties. With a little research from Firestone Walker’s website, and an interview with Matt Brynildson during a podcast on The Brewing Network, a few key recipe spec’s could be ascertained:

Original Gravity: 1.048 SG (calculated from terminal gravity and ABV)
Terminal Gravity: 1.005 SG (from TBN podcast)
Attenuation: 88% (calculated)
Alcohol: 5.3% ABV (from Firestone Walker website)
Bitterness: 40 IBU (from Firestone Walker website)
Color: 4 SRM

Other Key Points:

6 week turn-around time (from TBN podcast)
100% Weyermann malts (from TBN podcast)
Mash Regiment: 122° > 145° > 155° > 168° (from TBN podcast)
Calcium Chloride water treatment (from TBN podcast)
Wyeast 2124 yeast (from TBN podcast)
Magnum bittering (from TBN podcast)
Spalter Select mid-boil addition (from TBN podcast)
Saphir dry hop (from TBN podcast)

With these details in mind, I set out to formulate a recipe that captures the spirit of Pivo Pils. I selected two German hop varieties which symbolically depict the tradition of German hop growing and the direction it may be heading. Hallertau Mittelfruher is about a classic as it gets in the German brewing world, where-as Mandarina Bavaria is a new cultivar bred by the Hop Research Institute in Hull which has a Cascade hop lineage and is described as having tangerine and mandarin orange characteristics.

In determining the bittering levels for each beer, I used the Hallerau Mittelfruher beer as my base, and then scaled down the amount of hops used on the hot-side of the Mandarina Bavaria beer to achieve a comparable amount of hop bitterness.

SMaSH Hallertau Mittelfruher / Pilsner Recipe

Recipe Specifications:
Size: 3.25 gal
Efficiency: 68%
Attenuation: 88%

Original Gravity: 1.048 SG
Terminal Gravity: 1.006 SG
Color: 4.26 SRM
Alcohol: 5.53% ABV
Bitterness: 28.0 IBU (does not take into account bitterness achieved during whirlpool)

Grist:
6.75 lb (100.0%) Weyermann Pilsner Malt

Water Treatment added to Strike Water:
Soft NYC Water
4g Calcium Chloride
1g Gypsum

Mash Regiment:
0m – 122° F – Mash in at 122° F and immediately ramp up to next step
50m – 145° F – Beta Amylase Rest
10m – 155° F – Alpha Amylase Rest
5m – 168° F – Mash Out

Hopping:
60m – 20 g Hallertauer Mittelfrüher (4% AA)
30m – 20 g Hallertauer Mittelfrüher (4% AA)
Whirlpool 20m – 80g Hallertauer Mittelfrüher (4% AA)
Dryhop 3 Days – 26 g Hallertauer Mittelfrüher (4% AA)

Kettle Additions:
15m – 0.5 ea Whirlfloc Tablet
10m – 0.5 tsp Wyeast Nutrient

Yeast:
White Labs WLP833 German Bock Lager – 1400ml starter on stir plate

Fermentation:
1. Chill to 46° F and let rise to 48° F
2. Ramp temperature as fermentation slows up to 58° F for diacetyl rest
3. Crash to 32° F
4. Keg and lager at 32° F for 4 weeks.

SMaSH Mandarina Bavaria / Pilsner Recipe

Recipe Specifications:
Size: 3.25 gal
Efficiency: 68%
Attenuation: 88%

Original Gravity: 1.048 SG
Terminal Gravity: 1.006 SG
Color: 4.26 SRM
Alcohol: 5.53% ABV
Bitterness: 28.0 IBU (does not take into account bitterness achieved during whirlpool)

Grist:
6.75 lb (100.0%) Weyermann Pilsner Malt

Water Treatment added to Strike Water:
Soft NYC Water
4g Calcium Chloride
1g Gypsum

Mash Regiment:
0m – 122° F – Mash in at 122° F and immediately ramp up to next step
50m – 145° F – Beta Amylase Rest
10m – 155° F – Alpha Amylase Rest
5m – 168° F – Mash Out

Hopping:
60m – 12 g Mandarina Bavaria (7.2% AA)
30m – 12 g Mandarina Bavaria (7.2% AA)
Whirlpool 20m – 44 g Mandarina Bavaria (7.2% AA)
Dryhop 3 Days – 26 g Mandarina Bavaria (7.2% AA)

Kettle Additions:
15m – 0.5 ea Whirlfloc Tablet
10m – 0.5 tsp Wyeast Nutrient

Yeast:
White Labs WLP833 German Bock Lager– 1400ml starter on stir plate

Fermentation:
1. Chill to 46° F and let rise to 48° F
2. Ramp temperature as fermentation slows up to 58° F for diacetyl rest
3. Crash to 32° F
4. Keg and lager at 32° F for 4 weeks.

Vienna Lager 4.0 Homebrew Recipe

Posted on April 30, 2014 by Nick Ladd

Update: Unfortunately, the beer didn’t place in the second round of NHC. It did get pretty good scores however. I’ve uploaded the score sheets, in case you’re curious.

You can probably tell by my history of posting Vienna Lager recipes, that I love brewing (and drinking) the style. It is a great sessionable lager, and a lot of fun to brew. With that said, brewing this batch had ulterior motives.

My last batch of this beer turned out great. Judges tended to agree as it placed in both Homebrew Alley 8, and the first round of the National Homebrew Competition. Unfortunately, the bottles I have left are starting to show their age and will be well past their prime when the second round of the NHC occurs this June. With that in mind, I decided to brew up another batch. The recipe below was brewed on 3/30/14. This is pushing the time frame that I would normally be comfortable turning a lager of this strength around in. With careful yeast management and temperature control, it should be just enough time for the mid-June second round of the competition.

Recipe

Recipe Specs:
Size: 3.24 gal
Efficiency: 68%
Attenuation: 74%
Brew Date: 3/30/14

Original Gravity: 1.052 SG
Terminal Gravity: 1.014 SG
Color: 13.97 SRM
Alcohol: 5.07% ABV
Bitterness: 24.1 IBUs

Grist:
3.75 lb (51.3%) Vienna Malt – Weyermann
1.25 lb (17.1%) Pilsner Malt – Weyermann
2 lb (27.4%) Munich TYPE II – Weyermann
4 oz (3.4%) Carafoam® – Weyermann
1 oz (0.9%) Carafa® TYPE II – Weyermann

Water Additions (in Mash):
Soft NYC Water
4g Calcium Chloride

My recipe employs a single step decoction mash.

A quick single decoction enriches the malt character… and it’s a lot of fun.

Mash Regiment:
20m – 144°F Beta Rest
Decoct to Alpha Rest
20m – 156°F Alpha Rest
Direct Fire to Mashout
5m – 168.0°F Mashout Rest

Hopping:
24g Hallertauer Mittelfrüher (4.0% AA) – 60 m
14g Hallertauer Mittelfrüher (4.0% AA) – 10 m

Kettle Additions:
0.5 ea Whirlfloc Tablet – 15 m
0.5 tsp Wyeast Nutrient – 10 m

Yeast:
White Labs WLP833 German Bock Lager – 1800ml Starter on Stirplate

Fermentation:
1. Chill to 46°F and keep at 48°F until activity slows.
2. Raise to 58°F for diacetyl rest 24 hours.
3. Cool 6°F / day until back down to 32°F.
4. Rack to corny keg and lager at 32°F 3-4 weeks.

Vienna Lager Homebrew Review

Posted on January 13, 2014 by Nick Ladd

It’s been about six weeks since I’ve brewed my Vienna Lager — prime time to review this brew. This is the third or fourth time I’ve brewed a Vienna Lager, and I’m always excited when the time comes to tap a fresh keg. The recipe is primarily a blend of Munich, Pilsner, and Vienna malts. The goal is to create a clean and crisp malt-forward lager, while imbuing enough character to remain interesting. Getting the beer to finish relatively dry and low in alcohol helps to make this a great session beer. This beer is similar to what a beer like Negra Modelo or Dos Equis Amber could be if they were all-malt beers.

Fermentation went nearly perfectly with the beer starting at 1.052 and ending at 1.014 — approximately 73% apparent attenuation. The beer has been lagering at 32°F for the past 4 weeks and is ready for a taste.

Tasting Notes:

Judged as a BJCP Category 3A Vienna Lager

Aroma: (10/12)
The aroma is somewhat subdued, and very clean. There is a really nice round bready malt component that is very inviting and reminiscent of freshly baked bread. Intertwined are aromas of toasted biscuit and crusty sourdough. The is a light hint of sweetness that reminds me of golden colored caramel and provides a slight impression of sweetness.

Appearance: (2/3)
Rich amber with ruby red hues. The beer is clear, with just a hint of haze that should clear with a little more lagering time. The head is bright white, sticky, and persistent.

Flavor: (18/20)
The flavor is all about the interplay between toasty, dry, melonoiden-rich malt that finishes with a light touch of residual malt sweetness. There is no hop flavor that I can detect, but the bitterness is firm and clean, helping to keep the beer very balanced. To better fit the style, the beer could be a hair less bitter, otherwise it is nearly spot-on to style.

Mouth Feel: (4/5)
Medium-low bodied with a crisp and clean finish. There is a miniscule touch of astringency on the finish that provides further drying and slightly pushes it out of style.

Overall Impression: (8/10)
This is a beautiful beer to look at and consume. The balance is to the malt side, but it does so with a deft hand keeping it crisp, refreshing, and delicious. I will certainly be making this delicious recipe again.

Score: 43 / 50 (Excellent)