Brew Day: Chris and Robin's Beerfest recipe clone -April 20, 2010

Brewday: Chris and Robin's Beerfest recipe clone - April 20, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	23.00	Total volume[ltr (gal)]:	26.72	Losses [ltr (gal)]:	3.72
Original Gravity[SG]:	1.056	Colour [SRM(EBC)]:	32.51(64.04)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	33.97

Preboil Values:

Mash water volume [ltr (gal)]:	23.43 (6.19)	Mash tun volume [ltr (gal)]:	31.61 (8.35)	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]:	1.056

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)]:	26.72 (7.06)	@ boiling temp.	27.84 (7.35)	Boiler lose [ltr (gal)]:	2.00 (0.53)
Postboil target gravity [SG]:	1.065	mash items only	1.065

Style: 10C. American Brown Ale

Description:

Clone of Beerfest recipe, with modifications for whatever ingredients I have at hand.

Estimated Original Gravity[SG]: 1.065	Estimated Final Gravity[SG]: 1.016	Alcohol By Volume[%]: 6.49
Bitterness [IBU]: 33.97	Colour [SRM(EBC)]: 32.51 (64.04)
Balance: 1.093	BU:GU ratio: 0.526

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)	1.040	62.51%	4784.92 (10.55)	61.27%
Brown Malt	1.002	3.49%	299.79 (0.66)	3.84%
Carapils Malt (Weyermann)	1.006	8.93%	730.38 (1.61)	9.35%
Choc Chit Malt (Joe White)	1.001	1.61%	131.91 (0.29)	1.69%
Chocolate Malt (Bairds)	1.002	2.53%	203.86 (0.45)	2.61%
Chocolate Malt Pale (Bairds)	1.001	1.63%	131.91 (0.29)	1.69%
Crystal Malt Dark (Bairds)	1.001	1.43%	119.92 (0.26)	1.54%
Crystal Pale (Thomas Fawcett)	1.006	8.93%	740.52 (1.63)	9.48%
Wheat Malt (Barrett Burston)	1.006	8.93%	666.47 (1.47)	8.53%

Hops

Hop Utilisation Method: Tinseth - No chill cooling method

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Centennial	9.00%	23.14	68.12%	32.19 (1.14)	60.00
Cascade	7.80%	4.63	13.62%	9.46 (0.33)	15.00
Centennial	9.00%	6.20	18.26%	10.98 (0.39)	15.00
Cascade	7.80%	0.00	0.00%	4.77 (0.17)	Hop Tea
Centennial	9.00%	0.00	0.00%	14.31 (0.50)	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):

241.44

Dried yeast (gm):	12.84

No of liquid yeast(Wyeast/Whitelabs) packs:	2.57	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	342.47	(Assumes 25% trub and 94% viability)
One day settling	171.24	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	89.42	(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)]:	23.43 (6.19)	Mash tun volume required [ltr (gal)]:	31.61 (8.35)
Grain Weight [gms (lbs)]:	7809.67 (17.22)	Mash gravity @ 100% conversion [SG]:	1.076

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	79.73 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	2.95	14.50	77.49	87.27
2	14.50	14.50	34.89	39.29
Combined	17.45	29.00	56.19	63.28

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