Brew Day: Goblin 2-April 5, 2010

Brewday: Goblin 2 - April 5, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	23.00	Total volume[ltr (gal)]:	24.92	Losses [ltr (gal)]:	1.92
Original Gravity[SG]:	1.038	Colour [SRM(EBC)]:	15.62(30.77)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	47.25

Preboil Values:

Mash water volume [ltr (gal)]:	1.33 (0.35)	Mash tun volume [ltr (gal)]:	14.79 (3.91)	Mash tun loses [ltr (gal)]:
Preboil wort volume [ltr (gal)]:	24.00 (6.34)	@ mash out temp.	24.57 (6.49)	Preboil gravity [SG]:	1.004

Postboil Values:

Evapouration [ltr (gal)]:	1.00 (0.26)	Evapouration Rate [ltr (gal)/hr]:	1.00 (0.26)	Boil time [Minutes]:	60.00
Postboil wort volume [ltr (gal)]:	24.92 (6.58)	@ boiling temp.	25.95 (6.86)	Boiler lose [ltr (gal)]:	0.00 (0.00)
Postboil target gravity [SG]:	1.038	mash items only	1.004

Style: 11C. Northern English Brown

Description:

Semi clone of the famous Wychwood Hobgoblin

Estimated Original Gravity[SG]: 1.038	Estimated Final Gravity[SG]: 1.008	Alcohol By Volume[%]: 3.93
Bitterness [IBU]: 47.25	Colour [SRM(EBC)]: 15.62 (30.77)
Balance: 2.805	BU:GU ratio: 1.258

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Cara-Pils/Dextrine	1.002	4.08%	184.17 (0.41)	5.70%
Caramel/Crystal Malt - 60L	1.001	3.71%	162.50 (0.36)	5.03%
Chocolate Malt (Bairds)	1.001	2.23%	97.50 (0.21)	3.02%
Golden Syrup	1.000	0.88%	21.67 (0.05)	0.67%
Pale Liquid Extract	1.033	89.10%	2762.50 (6.09)	85.57%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Fuggle	4.50%	12.66	26.78%	27.16 (0.96)	60.00
Styrian Goldings	5.00%	14.06	29.76%	27.16 (0.96)	60.00
Fuggle	4.50%	9.73	20.58%	27.16 (0.96)	30.00
Styrian Goldings	5.00%	10.81	22.87%	27.16 (0.96)	30.00
Fuggle	4.50%	0.00	0.00%	13.00 (0.46)	0.00
Styrian Goldings	5.00%	0.00	0.00%	13.00 (0.46)	0.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
Nottingham British Ale - Danstar	High	78.00%	14.00 (57.20)	21.00 (69.80)	Medium

Miscellaneous

Name	Type	Use	Amount	Description	Time [Minutes]
Irish Moss	fining	boil	5.42 (0.19) [gms (oz)]	WhirlFloc	5.0

Estimated required yeast cells (billion):

161.92

Dried yeast (gm):	8.61

No of liquid yeast(Wyeast/Whitelabs) packs:	1.72	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	229.68	(Assumes 25% trub and 94% viability)
One day settling	114.84	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	59.97	(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)]:	1.33 (0.35)	Mash tun volume required [ltr (gal)]:	14.79 (3.91)
Grain Weight [gms (lbs)]:	444.17 (0.98)	Mash gravity @ 100% conversion [SG]:	1.000

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	97.04 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	13.16	12.00	6.18	8.63
2	12.00	12.00	1.06	1.48
Combined	25.16	24.00	3.62	5.06

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