Brew Day: Goblin 2-August 14, 2010

Brewday: Goblin 2 - August 14, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	23.00	Total volume[ltr (gal)]:	26.72	Losses [ltr (gal)]:	3.72
Original Gravity[SG]:	1.048	Colour [SRM(EBC)]:	17.19(33.87)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	47.25

Preboil Values:

Mash water volume [ltr (gal)]:	2.41 (0.64)	Mash tun volume [ltr (gal)]:	17.80 (4.70)	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]:	1.006

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]:	1.048	mash items only	1.007

Style: 11C. Northern English Brown

Description:

Semi clone of the famous Wychwood Hobgoblin

Estimated Original Gravity[SG]: 1.048	Estimated Final Gravity[SG]: 1.011	Alcohol By Volume[%]: 5.05
Bitterness [IBU]: 47.25	Colour [SRM(EBC)]: 17.19 (33.87)
Balance: 2.173	BU:GU ratio: 0.979

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Cara-Pils/Dextrine	1.002	3.18%	197.53 (0.44)	5.17%
Caramel/Crystal Malt - 60L	1.002	3.27%	197.53 (0.44)	5.17%
Chocolate Malt (Bairds)	1.001	1.93%	116.19 (0.26)	3.04%
Light Dry Extract	1.042	86.38%	3020.99 (6.66)	79.03%
Melanoiden Malt	1.003	5.24%	290.48 (0.64)	7.60%

Hops

Hop Utilisation Method: Tinseth

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Fuggle	4.50%	12.66	26.78%	32.08 (1.13)	60.00
Styrian Goldings	5.00%	14.06	29.76%	32.08 (1.13)	60.00
Fuggle	4.50%	9.73	20.58%	32.08 (1.13)	30.00
Styrian Goldings	5.00%	10.81	22.87%	32.08 (1.13)	30.00
Fuggle	4.50%	0.00	0.00%	13.94 (0.49)	0.00
Styrian Goldings	5.00%	0.00	0.00%	13.94 (0.49)	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	5.81 (0.20) [gms (oz)]	WhirlFloc	5.0

Estimated required yeast cells (billion):

208.13

Dried yeast (gm):	11.07

No of liquid yeast(Wyeast/Whitelabs) packs:	2.21	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	295.22	(Assumes 25% trub and 94% viability)
One day settling	147.61	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	77.08	(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)]:	2.41 (0.64)	Mash tun volume required [ltr (gal)]:	17.80 (4.70)
Grain Weight [gms (lbs)]:	801.72 (1.77)	Mash gravity @ 100% conversion [SG]:	1.001

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	97.43 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	14.86	14.50	9.85	13.56
2	14.50	14.50	1.58	2.17
Combined	29.36	29.00	5.72	7.87

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