Sunday, July 3, 2011

Taking the day off to brew

I've been struggling to find the time to get round to brewing as of late so did the logical thing and took a day off work to brew. And what I will be brewing is Tasty McDole's "Janets Brown". Recipe below adjusted to what I had available:

Batch Size (Gal): 6.00 Wort Size (Gal): 6.00
Total Grain (Lbs): 16.00
Anticipated OG: 1.066 Plato: 16.20
Anticipated SRM: 19.3
Anticipated IBU: 63.2
Brewhouse Efficiency: 70 %
Wort Boil Time: 90 Minutes


% Amount Name Origin Potential SRM
75.0 12.00 lbs. Pale Malt(2-row) America 1.036 2
7.8 1.25 lbs. Cara-Pils Dextrine Malt 1.033 2
7.8 1.25 lbs. Crystal 40L America 1.034 40
6.3 1.00 lbs. Wheat Malt America 1.038 2
3.1 0.50 lbs. Chocolate Malt America 1.029 350


Amount Name Form Alpha IBU Boil Time
1.00 oz. Northern Brewer Pellet 6.50 19.0 Mash H
1.25 oz. Northern Brewer Pellet 6.50 30.8 60 min.
1.00 oz. Northern Brewer Pellet 6.50 6.6 15 min.
1.50 oz. Cascade Pellet 6.00 6.8 10 min.
1.50 oz. Cascade Pellet 6.00 0.0 0 min.
2.00 oz. Centennial Pellet 9.00 0.0 Dry Hop

Fermentis US-05

Mash Schedule
Mashed in at 154*F or 68*C if you will.

As I am a BIAB brewer I've made some slight adjustments i.e took into account no sparging.

This is my first attempt on the electric water urn brew kettle my friends and I chipped in to buy and brew day is off to a bad start. With a beer this big you need a lot of grains and alot of water. This is probably one of the biggest problems with BIAB brewing. Let me explain.
The electric kettle I use is 40L and I want 23L in the fermenter. For this happen I need calculate how much water I need. So....
If i want 23L I need to add 23L to the kettle
The malt bill for is about 7.5kg. I assume for every kg of grain, I lose 1L of water + 7.5L
On the this kettle I can assume 2L lost to evaporation per hour. This is a 90min boil. +3L
So to start I need 23L + 7.5L + 3L which gives me 33.5L of water needed. Plenty of room in a 40L kettle for that.
Except i haven't eally taken into account the displacement of the 7.5kg og grains. Now 40L isn't quite big enough and I got a bit of an overflow.


Still, rather be doing this than working.

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