Hop Replacement

[a1149913]

Just about to brew an bohemian pilsner and have a question about a 60min hop addition. The recipe i have says to use 47g of Czech Saaz 3.5%. Can i make this up to the same IBU with magnum or will i get a significant flavor change?

Thanks, Jacob

Recipe Specifications
--------------------------
Boil Size: 26.50 l
Post Boil Volume: 24.13 l
Batch Size (fermenter): 23.00 l
Bottling Volume: 23.00 l
Estimated OG: 1.052 SG
Estimated Color: 7.5 EBC
Estimated IBU: 40.7 IBUs
Brewhouse Efficiency: 76.80 %
Est Mash Efficiency: 77.5 %
Boil Time: 90 Minutes

Ingredients:
------------
Amt Name Type # %/IBU
5.04 kg Weyermann® Pilsner (4.0 EBC) Grain 1 93.7 %
0.34 kg Weyermann® Carapils (4.0 EBC) Grain 2 6.3 %
14.00 g Magnum [13.00 %] - Boil 60.0 min Hop 3 20.7 IBUs
50.00 g Czech Saaz [3.70 %] - Boil 30.0 min Hop 4 16.2 IBUs
25.00 g Czech Saaz [3.70 %] - Boil 10.0 min Hop 5 3.8 IBUs
25.00 g Czech Saaz [3.70 %] - Boil 0.0 min Hop 6 0.0 IBUs
1.0 pkg Bohemian Lager (Wyeast Labs #2124) [124. Yeast 7 -
60.53 Items 375mL Bottle (Bottling 0.0 mins) Other 8 -


Mash Schedule: Single Infusion, Medium Body, Batch Sparge
Total Grain Weight: 5.38 kg
----------------------------
Name Description Step Temperat Step Time
Mash In Add 14.12 l of water at 75.5 C 67.0 C 60 min

Sparge: Drain mash tun, Batch sparge with 2 steps (8.94l, 8.94l) of 73.0 C water
Notes:
------

 

[Nick JD]

You will get a flavour change, but IMO it won't be significant.

I used to do Boh Pils with a 90 minute addition of PoR (also Galena for the 90 min addition) - and back to back there's a difference; in isolation, not much at all.

Now I use all-Saaz, but to be honest, adding decoction steps to the mash has a bigger affect than subbing out low AA hops for bittering.

Your beer will be fantastic.

 

[amiddler]

Nice response Nick
I can't see it having a big impact on flavour. The down fall of high AA hops is if you are out on your weight by 2-3 grams it has a hell of a difference on your IBU.

Drew

Edit: Nick will get the joke, I hope.

 

[Nick JD]

Nice response Nick


Edit: Nick will get the joke, I hope.

Where it was just a quote, by itself?

My browser is broken - won't let me write anything in the text area. I can get around this by hitting reply before I write anything, and then editing the empty post.

Stupid Firefox. Doesn't do it in Chrome.

 

[amiddler]

What a PITA.