Brew Day: Hop harvest ale-March 15, 2010

Brewday: Hop harvest ale - March 15, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	39.74	Total volume[ltr (gal)]:	40.20	Losses [ltr (gal)]:	0.46
Original Gravity[SG]:	1.050	Colour [SRM(EBC)]:	6.21(12.24)
Mash Efficiency [%]:	70.00%	Bitterness[IBU]:	22.80

Preboil Values:

Mash water volume [ltr (gal)]:	3.19 (0.84)	Mash tun volume [ltr (gal)]:	31.67 (8.37)	Mash tun loses [ltr (gal)]:	0.01 (0.00)
Preboil wort volume [ltr (gal)]:	41.14 (10.87)	@ mash out temp.	42.12 (11.13)	Preboil gravity [SG]:	1.029

Postboil Values:

Evapouration [ltr (gal)]:	0.95 (0.25)	Evapouration Rate [ltr (gal)/hr]:	0.95 (0.25)	Boil time [Minutes]:	60.00
Postboil wort volume [ltr (gal)]:	40.20 (10.62)	@ boiling temp.	41.87 (11.06)	Boiler lose [ltr (gal)]:	0.45 (0.12)
Postboil target gravity [SG]:	1.029	mash items only	1.029

Style: 10A. American Pale Ale

Description:

Ale made with my freshly picked hops, fist batch of Californian Common

Estimated Original Gravity[SG]: 1.029	Estimated Final Gravity[SG]: 1.008	Alcohol By Volume[%]: 2.92
Bitterness [IBU]: 22.80	Colour [SRM(EBC)]: 6.21 (12.24)
Balance: 1.579	BU:GU ratio: 0.776

Mash schedule

Name	Type	Temperature [C (F)]	Time [Minutes]
Sacchrification	infusion	67.00 (152.60)	60

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Ale Malt (Barrett Burston)	1.025	83.39%	4680.33 (10.32)	83.12%
Crystal Malt Dark (Bairds)	1.001	2.13%	131.14 (0.29)	2.33%
Crystal Pale (Thomas Fawcett)	1.001	4.49%	273.20 (0.60)	4.85%
Wheat Malt (Barrett Burston)	1.003	9.99%	546.40 (1.20)	9.70%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Chinook	13.00%	8.75	38.39%	9.75 (0.34)	60.00
Super Pride	14.25%	11.67	51.19%	11.86 (0.42)	60.00
Cluster	7.00%	2.38	10.43%	24.67 (0.87)	5.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
British Ale - Wyeast 1098	medium-high	74.00%	18.00 (64.40)	22.00 (71.60)	10% ABV

Miscellaneous

Name	Type	Use	Amount	Description	Time [Minutes]
Calcium Chloride	wateragent	mash	3.50 (0.12) [gms (oz)]		(Not Available)

Estimated required yeast cells (billion):

375.27

Dried yeast (gm):	19.96

No of liquid yeast(Wyeast/Whitelabs) packs:	3.99	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	532.30	(Assumes 25% trub and 94% viability)
One day settling	266.15	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	138.99	(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	67.00 (152.60)	60	3.19 (0.84)	100.26 (212.47)	0.57

Mash Details

Mash water required [ltr (gal)]:	3.19 (0.84)	Mash tun volume required [ltr (gal)]:	31.67 (8.37)
Grain Weight [gms (lbs)]:	5631.07 (12.41)	Mash gravity @ 100% conversion [SG]:	1.003

Number of batches:

General:

Minimum required efficiency:	70.00 %	Max expected efficiency	93.10 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	24.71	20.57	45.48	60.50
2	20.57	20.57	11.95	15.90
Combined	45.27	41.14	28.71	38.20

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