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Reviving 15 year old yeast

We were fortunate John shared with us a 1999 Thomas hardy ale for our judging course.
I added stored wort and oxygen, and revived the yeast.

Next step is to make a 1l beer…. And harvest the yeast.

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Recipe

Robust porter

For western brewers conference

Water profile

Mash Chemistry and Brewing Water Calculator

Mash pH 5.3 adjusted with .3g citric acid

Preboil 1.060 at 40c

31g nugget 12.5%

5L drawn off, boiled longer and more vigorously.

200g sugar/water, inverted with critic acid

Initial reduction was off the dial, diluted to 1.100
Added oxygen and westmalle yeast from starter

Porter og 1.048
Added oxygen and s-05

1.5l flask, added Thomas hardy 1999 starter to base porter

Robust porter, split off 5l and reduced via boiling additional 30mins
Gravity 1.058? Added s-05 and oxygen

Type: All Grain
Batch Size: 20.00 l
Boil Size: 29.00 l
Boil Time: 60 min
End of Boil Vol: 26.50 l
Final Bottling Vol: 20.00 l
Fermentation: Ale, Two Stage
Date: 19 Jun 2014
Brewer:
Asst Brewer:
Equipment: Viaola Mash/Boil
Efficiency: 75.00 %
Est Mash Efficiency: 78.7 %
Taste Rating: 30.0
Taste Notes:
Ingredients
Amt Name Type # %/IBU
5.15 kg Gladfield Ale Malt (3.0 SRM) Grain 1 83.5 %
0.45 kg Gladfield Dark Crystal Malt (91.4 SRM) Grain 2 7.3 %
0.34 kg Gladfield Chocolate Malt (634.5 SRM) Grain 3 5.5 %
0.22 kg Black (Patent) Malt (500.0 SRM) Grain 4 3.6 %

Gravity, Alcohol Content and Color

Est Original Gravity: 1.068 SG
Est Final Gravity: 1.015 SG
Estimated Alcohol by Vol: 6.9 %
Bitterness: 0.0 IBUs
Est Color: 47.0 SRM
Measured Original Gravity: 1.046 SG
Measured Final Gravity: 1.010 SG
Actual Alcohol by Vol: 4.7 %
Calories: 427.1 kcal/l

Mash Profile

Mash Name: Single Infusion, Light Body, No Mash Out
Sparge Water: 19.10 l
Sparge Temperature: 75.6 C
Adjust Temp for Equipment: TRUE
Total Grain Weight: 6.16 kg
Grain Temperature: 22.2 C
Tun Temperature: 22.2 C
Mash PH: 5.20
Mash Steps
Name Description Step Temperature Step Time
Mash In Add 16.08 l of water at 73.1 C 65.6 C 75 min

Sparge: Fly sparge with 19.10 l water at 75.6 C

Mash Notes: Simple single infusion mash for use with most modern well modified grains (about 95% of the time).

Carbonation and Storage

Carbonation Type: Bottle
Pressure/Weight: 117.64 g
Keg/Bottling Temperature: 21.1 C
Fermentation: Ale, Two Stage
Volumes of CO2: 2.3
Carbonation Used: Bottle with 117.64 g Corn Sugar
Age for: 30.00 days
Storage Temperature: 18.3 C
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Wit/Wheat Dunkel/Weizen Bock

3kg glad filed pilsner malt
3kg wheat malt – 1/2 German, 2.5 kg from Ellen

Dark base:

100g Munich

100g Crystal

15g cafafa III

15g choc

100g Wheat

100g Pilsner

Mash Chemistry and Brewing Water Calculator

Used Munich de-carbonated water profile

Adjusted mash pH to 3.35. a little bit of citric, went too low, so added sprinkle of bi-carb

Target Gravities:

Wit 1.042-1.055 11 l
Added 8g coriander and 8g mandarin peel. Half at 10 mins, half at 0 mins
Wheat 1.044-1.055 – actual 1.040 at 30 5l

Dunkel 1.044-1.056. 1.050 5l

Weizen Bock 1.064-1.090 1.060 – might be a bit thin… 1.5l carafe

Pre-boil base – 1.048

Pitched Adventis starter 1/4 into bock – rest into dunkel
Pitched hogarden starter into wit
1/4 packet mango jacks barvian wheat into wheat beer.

Added oxygen to each. Approx 20-30 secs