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Old 12-27-2008, 12:01 PM   #1
Captain Damage
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Apr 2008
Lowell, Massachusetts
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Hi! First post from a long time lurker.

Just got my 4th extract kit, a basic porter, from my LHS last night and found they've substituted the hops called for in the recipe. The recipe says to use 1oz Perle for bittering (60 min) and Tetnang for flavor/aroma with Żoz each for 20min and 2min.

The hops provided with the kit are Spalt Select and Northern Brewer (1oz ea). This chart suggests that I should use the NB for bittering and the Spalt for flavor/aroma. However, no two charts I've found seem to agree on what can be substituted for what, in fact they don't even agree on the alpha acid percentages of the different varieties.

So my first question is am I correct in using NB for bittering and Spalt for flavor?

My second question is should I adjust the schedule or ammounts?

Many thanks.
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Old 12-27-2008, 12:35 PM   #2
Oct 2008
Lowell, MA - Massachusetts
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I like this chart as it lists more varieties than any other that I've seen. According to it, and my reading of it, you are correct, but perhaps one of the hops experts here will chime in on this.
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Old 12-27-2008, 12:35 PM   #3
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Dec 2007
Marion. Va
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Every hop harvest will have different AA%'s

I'd use the NB for bittering and the spalt for flavor. Spalt is a good sub for tett.

I wouldn't adjust a thing with the recipie, just go with it, I guarentee you'll make beer!

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Old 12-27-2008, 12:36 PM   #4
Nov 2004
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Originally Posted by Captain Damage View Post

So my first question is am I correct in using NB for bittering and Spalt for flavor?

My second question is should I adjust the schedule or ammounts?

Many thanks.
1) Yes

2) No, you can assume that any adjustment was taken into consideration by the supplier. Those varieties are similar enough that the AA% should be very close.

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Old 12-27-2008, 04:02 PM   #5
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Oct 2005
Oak Grove, Oregon, USA
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Just a side note: AA% for a hop depends on the variety, the area, the year and the time since picking. That's why you see the variations.
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