Brew Day: Australian Pale Ale-November 1, 2009

Brewday: Australian Pale Ale - November 1, 2009

Recipe Values:

Volume to fermenter[ltr (gal)]:	35.00	Total volume[ltr (gal)]:	38.80	Losses [ltr (gal)]:	3.80
Original Gravity[SG]:	1.048	Colour [SRM(EBC)]:	4.67(9.20)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	16.97

Preboil Values:

Mash water volume [ltr (gal)]:	25.37 (6.70)	Mash tun volume [ltr (gal)]:	38.97 (10.29)	Mash tun loses [ltr (gal)]:	2.00 (0.53)
Preboil wort volume [ltr (gal)]:	41.00 (10.83)	@ mash out temp.	41.98 (11.09)	Preboil gravity [SG]:	1.045

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)]:	38.80 (10.25)	@ boiling temp.	40.42 (10.68)	Boiler lose [ltr (gal)]:	2.00 (0.53)
Postboil target gravity [SG]:	1.049	mash items only	1.049

Style:

Description:

Coopers Sparkling Ale clone

Mashed at 63C for 90 mins, actual FG was 1.006

Brew at around 18C

Estimated Original Gravity[SG]: 1.049	Estimated Final Gravity[SG]: 1.010	Alcohol By Volume[%]: 5.28
Bitterness [IBU]: 16.97	Colour [SRM(EBC)]: 4.67 (9.20)
Balance: 0.801	BU:GU ratio: 0.344

Mash schedule

Name	Type	Temperature [C (F)]	Time [Minutes]
Protien rest	infusion	53.00 (127.40)	5
Sacchrification	direct	64.00 (147.20)	90
Mash out	infusion	75.00 (167.00)	5

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Ale Malt (Barrett Burston)	1.045	90.37%	7661.47 (16.89)	90.59%
Wheat Malt (Barrett Burston)	1.005	9.63%	796.00 (1.75)	9.41%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Super Pride	14.25%	16.97	100.00%	19.90 (0.70)	60.00
Czech Saaz	3.75%	0.00	0.00%	9.95 (0.35)	0.00
Super Pride	14.25%	0.00	0.00%	9.95 (0.35)	0.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
Coopers Yeast	Meduim	80.00%	16.00 (60.80)	24.00 (75.20)	Medium

Estimated required yeast cells (billion):

315.00

Dried yeast (gm):	16.76

No of liquid yeast(Wyeast/Whitelabs) packs:	3.35	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	446.81	(Assumes 25% trub and 94% viability)
One day settling	223.40	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	116.67	(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]
Protien rest	Infusion	53.00 (127.40)	5	16.37 (4.32)	59.78 (139.60)	1.94
Sacchrification	Direct	64.00 (147.20)	90
Mash out	Infusion	75.00 (167.00)	5	9.00 (2.38)	95.00 (203.00)	3.00

Mash Details

Mash water required [ltr (gal)]:	25.37 (6.70)	Mash tun volume required [ltr (gal)]:	38.97 (10.29)
Grain Weight [gms (lbs)]:	8457.47 (18.65)	Mash gravity @ 100% conversion [SG]:	1.043

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	85.23 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	7.93	20.50	64.54	76.57
2	20.50	20.50	24.81	29.43
Combined	28.43	41.00	44.67	53.00

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