Brew Day: Saison-September 29, 2010

Brewday: Saison - September 29, 2010

Recipe Values:

Volume to fermenter[ltr (gal)]:	40.00	Total volume[ltr (gal)]:	43.83	Losses [ltr (gal)]:	3.83
Original Gravity[SG]:	1.055	Colour [SRM(EBC)]:	8.09(15.94)
Mash Efficiency [%]:	70.00%	Bitterness[IBU]:	19.88

Preboil Values:

Mash water volume [ltr (gal)]:	53.43 (14.11)	Mash tun volume [ltr (gal)]:	61.38 (16.22)	Mash tun loses [ltr (gal)]:	2.00 (0.53)
Preboil wort volume [ltr (gal)]:	46.00 (12.15)	@ mash out temp.	47.10 (12.44)	Preboil gravity [SG]:	1.052

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)]:	43.83 (11.58)	@ boiling temp.	45.65 (12.06)	Boiler lose [ltr (gal)]:	2.00 (0.53)
Postboil target gravity [SG]:	1.062	mash items only	1.057

Style: 16C. Saison

Description:

Saison

First step 51C 5mins
Mash temp 63C 90mins

Estimated Original Gravity[SG]: 1.062	Estimated Final Gravity[SG]: 1.014	Alcohol By Volume[%]: 6.38
Bitterness [IBU]: 19.88	Colour [SRM(EBC)]: 8.09 (15.94)
Balance: 0.694	BU:GU ratio: 0.321

Mash schedule

Name	Type	Temperature [C (F)]	Time [Minutes]
Sacchrification	infusion	67.00 (152.60)	60
Mash out	infusion	75.00 (167.00)	5

Fermentables

Type	Gravity [SG]	Gravity(%)	Weight [gms (lbs)]	Weight(%)
Carafa Special Type 2 (Weyermann)	1.000	0.39%	61.78 (0.14)	0.50%
Munich I Malt (Weyermann)	1.004	5.85%	774.22 (1.71)	6.22%
Pilsner Pale Malt (Barrett Burston)	1.049	79.54%	10262.97 (22.63)	82.49%
Sugar, Table (Sucrose)	1.005	8.07%	568.35 (1.25)	4.57%
Wheat Malt (Barrett Burston)	1.004	6.15%	774.22 (1.71)	6.22%

Hops

Hop Utilisation Method: Tinseth - No chill cooling method

Type	AA(%)	IBU	IBU(%)	Weight [gms (oz)]	Time(minutes)
Super Pride	13.00%	14.34	72.14%	22.13 (0.78)	60.00
Czech Saaz	3.75%	5.54	27.86%	50.00 (1.76)	1.00

Yeast

Type	Flocculation	Attenuation	Min Temp[C (F)]	Max Temp[C (F)]	Alcohol Tolerance
Belgian Style Saison Ale Yeast - WLP568	Medium	75.00%	21.11 (70.00)	26.67 (80.00)	Medium

Estimated required yeast cells (billion):

412.50

Dried yeast (gm):	21.94

No of liquid yeast(Wyeast/Whitelabs) packs:	4.39	(Assumes 94% viability)

Approximate amount of solid slurry (ml):
One hour settling	585.11	(Assumes 25% trub and 94% viability)
One day settling	292.55	(Assumes 25% trub and 94% viability)
Longer than 1 week settling	152.78	(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	38.16 (10.08)	72.87 (163.16)	3.21
Mash out	Infusion	75.00 (167.00)	5	15.27 (4.03)	95.00 (203.00)	4.50

Mash Details

Mash water required [ltr (gal)]:	53.43 (14.11)	Mash tun volume required [ltr (gal)]:	61.38 (16.22)
Grain Weight [gms (lbs)]:	11873.19 (26.18)	Mash gravity @ 100% conversion [SG]:	1.099

Number of batches:

General:

Minimum required efficiency:	70.00 %	Max expected efficiency	79.42 %

Sparges:

Sparge No	Water addition [l]	Expected recovered volume [l]	Required gravity	Max expected gravity
1	0.00	36.17	56.60	66.76
2	9.83	9.83	36.06	42.54
Combined	9.83	46.00	52.21	61.58

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