Brew Day: Beerfest 2010 - Champion Brewer's - American Brown-May 5, 2012

Brewday: Beerfest 2010 - Champion Brewer's - American Brown - May 5, 2012

Recipe Values:

Volume to fermenter[ltr (gal)]:	1200.00	Total volume[ltr (gal)]:	1203.99	Losses [ltr (gal)]:	3.99
Original Gravity[SG]:	1.056	Colour [SRM(EBC)]:	29.47(58.05)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	36.70

Preboil Values:

Mash water volume [ltr (gal)]:	914.80 (241.66)	Mash tun volume [ltr (gal)]:	1205.71 (318.52)	Mash tun loses [ltr (gal)]:	2.00 (0.53)
Preboil wort volume [ltr (gal)]:	1206.00 (318.59)	@ mash out temp.	1234.72 (326.18)	Preboil gravity [SG]:	1.056

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)]:	1203.99 (318.06)	@ boiling temp.	1254.17 (331.32)	Boiler lose [ltr (gal)]:	2.00 (0.53)
Postboil target gravity [SG]:	1.056	mash items only	1.056

Style: 10C. American Brown Ale

Description:

Recipe for the 2010 Champion Brewer's prize, to be brewed at Jamiesons Brewery and put on tap at Mrs Parmas

Estimated Original Gravity[SG]: 1.056	Estimated Final Gravity[SG]: 1.014	Alcohol By Volume[%]: 5.63
Bitterness [IBU]: 36.70	Colour [SRM(EBC)]: 29.47 (58.05)
Balance: 1.362	BU:GU ratio: 0.656

Mash schedule

Name	Type	Temperature [C (F)]	Time [Minutes]
Sacchrification	direct	68.00 (154.40)	90

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Ale Malt (Barrett Burston)	1.035	62.51%	186830.13 (411.89)	61.27%
Brown Malt	1.002	3.49%	11705.51 (25.81)	3.84%
Carapils Malt (Weyermann)	1.005	8.93%	28518.10 (62.87)	9.35%
Choc Chit Malt (Joe White)	1.001	1.61%	5150.41 (11.35)	1.69%
Chocolate Malt (Bairds)	1.001	2.53%	7959.76 (17.55)	2.61%
Chocolate Malt Pale (Bairds)	1.001	1.63%	5150.41 (11.35)	1.69%
Crystal Malt Dark (Bairds)	1.001	1.43%	4682.20 (10.32)	1.54%
Crystal Pale (Thomas Fawcett)	1.005	8.93%	28914.19 (63.74)	9.48%
Wheat Malt (Barrett Burston)	1.005	8.93%	26022.77 (57.37)	8.53%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Amarillo	8.90%	25.00	68.12%	1547.26 (54.58)	60.00
Amarillo	8.90%	6.70	18.26%	835.97 (29.49)	15.00
Cascade	5.75%	5.00	13.62%	965.29 (34.05)	15.00
Amarillo	8.90%	0.00	0.00%	645.00 (22.75)	Hop Tea
Cascade	5.75%	0.00	0.00%	215.00 (7.58)	Hop Tea

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
American Ale - Wyeast 1056	medium-low	75.00%	15.00 (59.00)	22.00 (71.60)	10% ABV

Estimated required yeast cells (billion):

12597.12

Dried yeast (gm):	670.06

No of liquid yeast(Wyeast/Whitelabs) packs:	134.01	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	17868.26	(Assumes 25% trub and 94% viability)
One day settling	8934.13	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	4665.60	(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	Direct	68.00 (154.40)	90

Mash Details

Mash water required [ltr (gal)]:	914.80 (241.66)	Mash tun volume required [ltr (gal)]:	1205.71 (318.52)
Grain Weight [gms (lbs)]:	304933.48 (672.26)	Mash gravity @ 100% conversion [SG]:	1.057

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	84.17 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	86.61	603.00	79.84	89.75
2	603.00	603.00	31.76	35.71
Combined	689.61	1206.00	55.80	62.73

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