Homebrew Recipe
Eisbock
- Method:
- Extract
- Style:
- Eisbock
- Boil Time:
- 60 min.
- Batch Size:
- 5 gal.
- Boil Size:
- 5 gal.
- Efficiency:
- 0
- Rating:
- Source:
- Brew Your Own
- Source Notes:
- January-February 2020, Vol. 26, No. 1 page 67. This extract recipe assumes you can find Weyermann Bavarian Maibock malt extract. If this extract is unavailable in your region of the world, you can steep all the specialty grains in the all-grain recipe and swap out the Pilsner malt with 8 lbs. Pilsen liquid malt extract.
- Notes:
- Start heating 5 gallons of water. As the water warms, remove from heat and stir in all the extract until fully dissolved. Return to heat and bring to a boil. Boil 60 minutes, adding hops as indicated. At the end of the boil add the aroma hops and whirlpool for 15 minutes. Cool to 55F. After the beer reaches terminal gravity (should be 1.014 after 7 to 10 days), reduce temperature by 4F per day to about 32F. Package about four weeks after brew day. Up to this point you have brewed a Maibock. To turn it into an eisbock, purge your fermentation bucket (ideally one with a spigot at the bottom) with CO2 to minimize oxygen pickup and then freeze the beer. When enough of the beer has frozen to your liking (likely 2-3 days - the longer you freeze it the more concentrated the eisbock will be), drain the higher-concentrated beer into a receiving vessel (such as a Cornelius keg) that has been purged with CO2. Add CO2 to the top of the discharging bucket(s), too, as the headspace increases during draining. This also reduces the chance of oxidation. For the same reason, the transfer tube should be long enough to reach the bottom of the receiving vessel. Let the beer settle for a couple of days and then rack it again to help clarify (or filter the beer). Rack to a keg and force carbonate, or add fresh CBC-1 yeast and priming sugar before bottling.
Brew Numbers
| OG | FG | ABV | SRM | IBU |
|---|---|---|---|---|
| 1.067 | 1.014 | 7 | 10.6 | 28 |
Fermentables
| Name | Amount | % Grain Bill |
|---|---|---|
| Pilsner Liquid Malt Extract | 8.8 lbs. | 100.00 |
| Notes: See source notes. Weyermann Bavarian Maibock malt extract | ||
| Total: | 8.80 lbs. | |
Hops
| Name | Amount | Boil Time | Use | AA |
|---|---|---|---|---|
| Tettnang (GER) | 0.9 oz. | 60 | Boil | 4.25 |
| Notes: 3.6 AAU | ||||
| Hallertau Mittelfruh | 0.9 oz. | 5 | Boil | 4.25 |
| Notes: 3.8 AAU | ||||
| Hallertau Mittelfruh | 1.4 oz. | 0 | Steep | 4.25 |
| Name | Amount |
|---|---|
| Hallertau Mittelfruh | 2.3 oz. |
| Tettnang (GER) | 0.9 oz. |
Yeast
| Name | Lab | Product |
|---|---|---|
| Bavarian Lager | Wyeast | 2206 |
| Bavarian Lager | Mangrove Jack's | M76 |
| Bohemian Lager | Wyeast | 2124 |
| German Bock | White Labs | WLP833 |
| German Lager | White Labs | WLP830 |
| SafLager | Fermentis | S-23 |