Brew Day: Hank-May 16, 2009

Brewday: Hank - May 16, 2009

Recipe Values:

Volume to fermenter[ltr (gal)]:	27.00	Total volume[ltr (gal)]:	32.77	Losses [ltr (gal)]:	5.77
Original Gravity[SG]:	1.063	Colour [SRM(EBC)]:	19.26(37.95)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	35.27

Preboil Values:

Mash water volume [ltr (gal)]:	25.94 (6.85)	Mash tun volume [ltr (gal)]:	36.30 (9.59)	Mash tun loses [ltr (gal)]:	2.00 (0.53)
Preboil wort volume [ltr (gal)]:	35.00 (9.25)	@ mash out temp.	35.83 (9.47)	Preboil gravity [SG]:	1.053

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)]:	32.77 (8.66)	@ boiling temp.	34.14 (9.02)	Boiler lose [ltr (gal)]:	4.00 (1.06)
Postboil target gravity [SG]:	1.059	mash items only	1.059

Style: 10C. American Brown Ale

Description:

American brown ale, potentially for AHB case swap.

Estimated Original Gravity[SG]: 1.059	Estimated Final Gravity[SG]: 1.015	Alcohol By Volume[%]: 5.95
Bitterness [IBU]: 35.27	Colour [SRM(EBC)]: 19.26 (37.95)
Balance: 1.239	BU:GU ratio: 0.596

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Ale Malt (Barrett Burston)	1.045	76.09%	6538.27 (14.41)	75.63%
Brown Malt	1.002	3.64%	351.12 (0.77)	4.06%
Chocolate Malt Pale (Bairds)	1.002	2.58%	234.08 (0.52)	2.71%
Crystal Malt Dark (Bairds)	1.001	1.86%	175.56 (0.39)	2.03%
Crystal Malt Pale (Bairds)	1.003	4.65%	409.64 (0.90)	4.74%
Wheat Malt (Barrett Burston)	1.007	11.18%	936.33 (2.06)	10.83%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Amarillo	8.90%	20.00	56.71%	34.66 (1.22)	60.00
Amarillo	8.90%	6.70	19.00%	23.41 (0.83)	15.00
Cascade	5.75%	4.33	12.28%	23.41 (0.83)	15.00
Nelson sauvin	10.00%	3.77	10.68%	11.70 (0.41)	15.00
Cascade	5.75%	0.47	1.33%	29.26 (1.03)	1.00

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):

318.94

Dried yeast (gm):	16.96

No of liquid yeast(Wyeast/Whitelabs) packs:	3.39	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	452.39	(Assumes 25% trub and 94% viability)
One day settling	226.20	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	118.13	(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]
Saccrification	Direct	67.00 (152.60)	60	0.00 (0.00)	0.00 (32.00)	3.20

Mash Details

Mash water required [ltr (gal)]:	25.94 (6.85)	Mash tun volume required [ltr (gal)]:	36.30 (9.59)
Grain Weight [gms (lbs)]:	8645.00 (19.06)	Mash gravity @ 100% conversion [SG]:	1.062

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	81.82 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	4.57	17.50	73.90	84.70
2	17.50	17.50	31.51	36.12
Combined	22.07	35.00	52.71	60.41

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