Weizenbock

Next up is my first attempt at repitching a yeast cake. I saved the Wyeast 3068 from my last Hefeweizen in a growler that I stored in the fridge until I needed it (about 3 weeks). I also corrected my partial mash mistake from the last brew and went with a “double partial mash”. Basically I mashed in 2 pots instead of just one, and I have to say it worked out fairly well, except my efficiancy was a little low but I'm getting used to that.

The recipe is pretty much all mine. I did some research and looked at some different recipes to get an understanding of the basic ingredients and then made up my own combination of malts. I decided to go light on the Crystal 120 to keep the dark fruit flavors in the background, I really wanted the caramel and banana to be the main attraction. I think I did a pretty good job of accomplishing this. I don't think I would change this recipe much, maybe add a little more caramel malt and a slightly lower fermentation temp, it got away from me a little.

The aroma has a nice balance of banana fruitiness and caramel/tofee sweetness, with a bready background. A touch of dark fruit but not to much. Clove esters combine with the alcohol to add some spiciness. Deep ruby/brown color. Decent head retention. Full bodied with just enough bitterness to keep everything in check.

Recipe:
Expected OG: 1.080
Actual OG: 1.075
Expected FG: 1.020
Actual FG: 1.021
IBU: 24
Boil: 60 minutes
Pre-boil Volume: 5.5 gallons
Final Volume: 5 gallons
Apparent Attenuation: 71%
ABV: 7.1%

Extract/Sugar:
Wheat DME 3 lbs.
Briess Pilsen DME 2 lbs.

Partial Mash Grains:
Weyermann Light Munich 4 lbs.
Weyermann Dark Wheat Malt 2 lbs
Weyermann Cara Wheat 8 oz.
Weyermann Cara Munich III 4 oz
Briess Crystal 120 4 oz.
Weyermann Chocolate Wheat 2 oz.

Hops:
60 min: Warrior, 15.8% 0.5 oz.

Yeast:
Wyeast 3068 cake saved from Hefe

Water:
Spring water from Welpman Spring in Morgan County, MO

Double Partial Mash (stove top method): In brew kettle, heat 11 quarts of water to 165˚, meanwhile pre-heat two 8qt pots in oven (set to warm) add grain bags and grains to preheated pots, then slowly add water and stir. Mash temp should be about 153˚. Move pots to preheated oven for 60 minutes.

After about 30 minutes, heat 8 quarts of water to about 175˚. When mash is done, pull out the grain bags and let it drain for a few minutes. Add first running to kettle. Pour 4 quarts of heated water to each pot and add grain bags, stir and let sit for 20 minutes to rinse out any remaining sugars. Should end up with around 14 – 16 quarts of wort.

Add 1 gallon or so of water and wort to brew kettle (for a total of around 5.5 gal.), add DME and stir, heat to a boil and add hops.

Chill wort to about 70˚ or less, transfer to carboy, aerate, take gravity, pitch decanted yeast starter.

Notes:
Brewed on 9/19/09 by myself

9/18/09 – made 2 cups of wort with about 1.8 oz. of DME and pitched it onto the decanted yeast cake.

9/19/2:00pm – OG came out low, again. Calculating about 55% efficiency, not good. Pitched starter at about 68˚. I bought a small fountain pump and used it to recirculate ice water through chiller. Worked great. Need to make a bigger chiller.

9/19/11:00pm – Fermentation is under way, about a ½ inch of kraeusen. 70˚

9/20 – Fermentation has been rocking all day. Lots of yeast through the blow-off. Temp got a little higher than I wanted, around 77˚

9/21 – Fermentation has started to settle down a bit, temp is holding around 72˚. Removed blow-off and replaced with foil.

9/25 – Temps have been dipping down into the upper 60s, hope they stay like this or go lower.

10/15 – Bottling day. Bottled 24 – twelve ounce bottles, 12 – 22oz. Bottles and one 750ml bottle. Used 6 oz. of corn sugar for about 3 volumes of CO2.