Centurian IPA, 100g of hops, 100IBUs, 100 minute boil

[flything]

Had a bottle of Dogfish Head 90 min IPA the other day, interesting, inspired me to have a think about something similarish....

It's going to need dry hopping, I do have another 100g bag of Centennial.....


Recipe Specifications
--------------------------
Batch Size: 23.00 L
Boil Size: 29.36 L
Estimated OG: 1.066 SG
Estimated Color: 11.2 EBC
Estimated IBU: 98.4 IBU
Brewhouse Efficiency: 72.00 %
Boil Time: 100 Minutes

Ingredients:
------------
Amount Item Type % or IBU
6.20 kg Pale Malt, Maris Otter (4.9 EBC) Grain 93.23 %
0.45 kg Munich Malt (17.7 EBC) Grain 6.77 %
5.00 gm Centennial [11.90 %] (100 min) Hops 6.2 IBU
5.00 gm Centennial [11.90 %] (95 min) Hops 6.2 IBU
5.00 gm Centennial [11.90 %] (90 min) Hops 6.1 IBU
5.00 gm Centennial [11.90 %] (85 min) Hops 6.1 IBU
5.00 gm Centennial [11.90 %] (80 min) Hops 6.1 IBU
5.00 gm Centennial [11.90 %] (75 min) Hops 6.0 IBU
5.00 gm Centennial [11.90 %] (70 min) Hops 5.9 IBU
5.00 gm Centennial [11.90 %] (65 min) Hops 5.9 IBU
5.00 gm Centennial [11.90 %] (60 min) Hops 5.7 IBU
5.00 gm Centennial [11.90 %] (55 min) Hops 5.6 IBU
5.00 gm Centennial [11.90 %] (50 min) Hops 5.5 IBU
5.00 gm Centennial [11.90 %] (45 min) Hops 5.3 IBU
5.00 gm Centennial [11.90 %] (40 min) Hops 5.0 IBU
5.00 gm Centennial [11.90 %] (35 min) Hops 4.8 IBU
5.00 gm Centennial [11.90 %] (30 min) Hops 4.4 IBU
5.00 gm Centennial [11.90 %] (25 min) Hops 4.0 IBU
5.00 gm Centennial [11.90 %] (20 min) Hops 3.5 IBU
5.00 gm Centennial [11.90 %] (15 min) Hops 2.9 IBU
5.00 gm Centennial [11.90 %] (10 min) Hops 2.1 IBU
5.00 gm Centennial [11.90 %] (5 min) Hops 1.1 IBU
1.00 items Protofloc (Boil 15.0 min) Misc
2 Pkgs SafAle California Ale (DCL Yeast #S-05) Yeast-Ale

[dave-o]

What's the thinking behind 17 seperate hop additions between 100m and 20m?

[flything]

It's based on what Dogfish Head do, they continually hop their 60,90 and 120 IPAs during the boil (the numbers relate the length of the boil and the IBUs). I thought it might be fun to do a variation and playing around with a recipe it sort of fell together around the number 100 and Centennial Hops.

Dogfish say this about their 90 min beer:

90 Minute IPA was our first continually-hopped beer, which is a method of hopping that allows for a pungent, but not crushing hop flavor. Since introducing the world to the continual-hopping method with our 90 Minute IPA, we've since released a continually-hopped 60 Minute IPA, 120 Minute IPA and even a 75 Minute IPA (a cask-conditioned blend of 60 & 90 Minute IPAs).

[Invalid Stout]

Does continuous hopping make a difference or is it just a gimmick?

[flything]

I certainly thought the DFH 90 min IPA was good, extremely hoppy but nice mixture of bitterness and hop flavours. I had my first bottle of Jaipur yesterday and, while I liked it, the hop flavours reminded me of my own very hoppy brews before they have started fermenting, a sort of raw hoppiness which presumably comes from chucking in a sackfull of hops at the very end, I think I prefer the sort of end to end hoppiness that the Dogfish beer had.

But yeah it's almost certainly a gimmick, probably could get much the same result with a 100, 80, 60, 40, 20 0 or even less frequent hop schedule, I guess the only thing to do is brew it and see if it tastes any good!