Brew Day: World Cup Dunkelweizen-June 24, 2010

Brewday: World Cup Dunkelweizen - June 24, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	23.00	Total volume[ltr (gal)]:	26.72	Losses [ltr (gal)]:	3.72
Original Gravity[SG]:	1.054	Colour [SRM(EBC)]:	15.14(29.82)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	15.49

Preboil Values:

Mash water volume [ltr (gal)]:	20.04 (5.29)	Mash tun volume [ltr (gal)]:	29.39 (7.76)	Mash tun loses [ltr (gal)]:	2.00 (0.53)
Preboil wort volume [ltr (gal)]:	29.00 (7.66)	@ mash out temp.	29.69 (7.84)	Preboil gravity [SG]:	1.051

Postboil Values:

Evapouration [ltr (gal)]:	4.00 (1.06)	Evapouration Rate [ltr (gal)/hr]:	4.00 (1.06)	Boil time [Minutes]:	60.00
Postboil wort volume [ltr (gal)]:	26.72 (7.06)	@ boiling temp.	27.84 (7.35)	Boiler lose [ltr (gal)]:	2.00 (0.53)
Postboil target gravity [SG]:	1.058	mash items only	1.058

Style: 15A. Weizen/Weissbier

Description:

A beer for the 2010 world cup final, Germany vrs .......?

Estimated Original Gravity[SG]: 1.058	Estimated Final Gravity[SG]: 1.015	Alcohol By Volume[%]: 5.84
Bitterness [IBU]: 15.49	Colour [SRM(EBC)]: 15.14 (29.82)
Balance: 0.554	BU:GU ratio: 0.267

Mash schedule

Name	Type	Temperature [C (F)]	Time [Minutes]
Sacchrification	infusion	65.00 (149.00)	60
Mash Out	infusion	75.00 (167.00)	10

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Melanoidian Malt (Weyermann)	1.003	4.74%	348.58 (0.77)	5.22%
Munich Malt	1.020	34.82%	2323.84 (5.12)	34.78%
Special B Malt	1.002	3.53%	290.48 (0.64)	4.35%
Wheat Malt (Joe White)	1.031	53.24%	3485.75 (7.68)	52.17%
Wheat Malt, Dark	1.002	3.67%	232.38 (0.51)	3.48%

Hops

Hop Utilisation Method: Tinseth - No chill cooling method

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Hallertau Mittlefrueh	6.30%	15.49	100.00%	29.05 (1.02)	60.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
Weihenstephan Weizen - Wyeast 3068	low	75.00%	18.00 (64.40)	24.00 (75.20)	10% ABV

Miscellaneous

Name	Type	Use	Amount	Description	Time [Minutes]
5.2 buffer	wateragent	mash	5.81 (0.20) [gms (oz)]		(Not Available)
Sulphate	wateragent	boil	6.97 (0.25) [gms (oz)]		(Not Available)

Estimated required yeast cells (billion):

233.81

Dried yeast (gm):	12.44

No of liquid yeast(Wyeast/Whitelabs) packs:	2.49	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	331.64	(Assumes 25% trub and 94% viability)
One day settling	165.82	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	86.60	(Assumes 25% trub and 80% viability)

Note yeast viability reduces greatly over time as demonstrated in the table below.

Age	Viability	Age	Viability
1 week	80%	2 weeks	70%
3 weeks	60%	4 weeks	50%
5 weeks	40%	6 weeks	25%
7 weeks	15%	8 weeks or older	less than 10%

Viability deterioration varies greatly between different yeast strains. You should consider doing a yeast starter for any yeast older than 2 weeks to ensure yeast viability prior to pitching.

Liquor to grist ratio [ltr/kg]:

Saccrification rest - 3.00 to 4.00 [ltr/kg] is recommended.

A lower liquor to grist ratio will produce a less fermentable wort (with more complex sugars) while a higher liquor to grist ratio can result in a more fermentable wort.

Both extremes will require a longer rest time ( up to 90 minutes )

Protein rest - less then 2.50 [ltr/kg] is recommended.

Mash Schedule

Name	Method	Step temp [C (F)]	Step time [minutes]	Addition amount [ltr (gal)]	Addition temp [C (F)]	Liquor/grist ratio [ltr/kg]
Sacchrification	Infusion	65.00 (149.00)	60	13.36 (3.53)	74.02 (165.24)	2.00
Mash Out	Infusion	75.00 (167.00)	10	6.68 (1.77)	95.00 (203.00)	3.00

Mash Details

Mash water required [ltr (gal)]:	20.04 (5.29)	Mash tun volume required [ltr (gal)]:	29.39 (7.76)
Grain Weight [gms (lbs)]:	6681.03 (14.73)	Mash gravity @ 100% conversion [SG]:	1.058

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	82.54 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	4.87	14.50	71.27	83.09
2	14.50	14.50	29.78	34.72
Combined	19.37	29.00	50.53	58.91

Assumed constants:

The following are assumed in calculations below and will eventually be able to be set.

Absorption [l/kg]:	1.3	Grain displacement [l/kg]:	0.67