Brew Day: Suck-it-and-see-September 14, 2010

Brewday: Suck-it-and-see - September 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)]:	10.41(20.51)
Mash Efficiency [%]:	75.00%	Bitterness[IBU]:	29.68

Preboil Values:

Mash water volume [ltr (gal)]:	13.94 (3.68)	Mash tun volume [ltr (gal)]:	25.38 (6.70)	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]:	1.034

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	1.040

Style: 10A. American Pale Ale

Description:

attempted AG using Brew in a bag and left over malts

Estimated Original Gravity[SG]: 1.048	Estimated Final Gravity[SG]: 1.012	Alcohol By Volume[%]: 4.78
Bitterness [IBU]: 29.68	Colour [SRM(EBC)]: 10.41 (20.51)
Balance: 1.298	BU:GU ratio: 0.624

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Carared Malt (Weyermann)	1.002	4.76%	290.48 (0.64)	5.56%
Crystal Malt Pale (Bairds)	1.005	10.05%	580.96 (1.28)	11.11%
Extra Light Dry Extract	1.008	16.87%	580.96 (1.28)	11.11%
Melanoidian Malt (Weyermann)	1.002	4.83%	290.48 (0.64)	5.56%
Pilsner (Joe White)	1.030	63.49%	3485.76 (7.68)	66.67%

Hops

Hop Utilisation Method: Tinseth - No chill cooling method

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Columbus	12.00%	19.47	65.61%	17.43 (0.61)	60.00
Cascade	5.80%	6.20	20.90%	17.43 (0.61)	5.00
D Saaz	4.30%	4.01	0.00%	17.43 (0.61)	0.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
Saf Ale S-05	high to medium	75.00%	15.00 (59.00)	24.00 (75.20)	medium

Miscellaneous

Name	Type	Use	Amount	Description	Time [Minutes]
WhirlFloc	fining	boil	2.32 (0.08) [gms (oz)]	Fining	10.0

Estimated required yeast cells (billion):

204.96

Dried yeast (gm):	10.90

No of liquid yeast(Wyeast/Whitelabs) packs:	2.18	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	290.72	(Assumes 25% trub and 94% viability)
One day settling	145.36	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	75.91	(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)]:	13.94 (3.68)	Mash tun volume required [ltr (gal)]:	25.38 (6.70)
Grain Weight [gms (lbs)]:	4647.68 (10.25)	Mash gravity @ 100% conversion [SG]:	1.027

Number of batches:

General:

Minimum required efficiency:	75.00 %	Max expected efficiency	87.83 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	8.32	14.50	50.96	63.23
2	14.50	14.50	17.77	22.05
Combined	22.82	29.00	34.37	42.64

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