I'm still working on the new setup. Efficiency (63%) was quite poor once again. I think this is coming from two places:
- My blichman autosparge is returning wort via a silicon hose, which is causing a whirlpooling effect. This is causing an obvious channelling problem. I need to rethink how to return wort and sparge.
- I'm collecting wort far too quickly in the sparging process.
I've removed the stainless braid from my kettle output. As I mentioned in the last post it was getting hopelessly clogged with a medium hop bill, it wouldn't have any chance with this hop bill. Also it was interfering with whirlpooling by effectively drawing wort from the whole of the outside rim. Now I've just got a simple pickup tube with no filter of any kind. It worked quite well, with a decent trub cone developing through simple whirlpooling and I was able to drain all but about 2.5L from the kettle without getting a lot of hop debris in the chiller.
So even though my mash efficiency was the same as the last brew, my brewhouse efficiency was way up. I'm half way there I guess. I ended up with an OG of 1.063, 7 points off the CYBI recipe, but only 3 off the recipe in Mitch Steele's IPA book, so I'm hopeful I'll still end up with something pretty good.
I'm a little worried about my starter. It was a 2.5L stirred starter of WLP007. The starter beer had a very slight sour edge, and I was sorely tempted to throw the whole thing out. Then I found this post on homebrewtalk.com, and decided it was probably ok. Now I'm not so sure. I guess we'll find out.
Despite the slight disappointment with mash efficiency, and being another night time brew, the whole thing went really smoothly. I think this was due in large part to creating a job list before hand. I hadn't done this before, but it really helped keep any panic at bay. Here it is:
Recipe:
Firestone Union Jack
Grain/Extract/Sugar
% Amount Name Origin Potential SRM
-----------------------------------------------------------------------------
82.0 6.30 kg. Pale Ale Malt (2-row) Australia 1.037 2
11.7 0.90 kg. Munich Malt I Germany 1.037 6
4.9 0.38 kg. CaraPils Germany 1.033 2
1.3 0.10 kg. CaraMalt UK 1.035 34
Potential represented as SG per pound per gallon.
Hops
Amount Name Form Alpha IBU Boil Time
-----------------------------------------------------------------------------
29.00 g. Warrior Pellet 14.70 55.5 60 min.
16.00 g. Cascade Pellet 7.90 8.4 30 min.
21.00 g. Centennial Pellet 9.00 12.5 30 min.
52.00 g. Cascade Pellet 7.00 0.0 0 min.
52.00 g. Centennial Pellet 10.50 0.0 0 min.
44.00 g. Cascade Pellet 5.75 0.0 Dry Hop
44.00 g. Centennial Pellet 10.50 0.0 Dry Hop
30.00 g. Cascade Pellet 5.75 0.0 Dry Hop
30.00 g. Centennial Whole 10.50 0.0 Dry Hop
14.00 g. Amarillo Gold Pellet 10.00 0.0 Dry Hop
14.00 g. Simcoe Pellet 13.00 0.0 Dry Hop
Yeast
-----
WLP007
Mash Schedule
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Mash Type: Multi Step
Saccharification Rest Temp : 63 Time: 60
Mash-out Rest Temp : 68 Time: 10
Sparge Temp : 78 Time: 30
All temperature measurements are degrees Celsius.