TerraSurge

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Bittering

Origin United States

Bred by Hop Breeding Company

Owner Hop Breeding Company

Two or more independent sources

Bitterness: Very high (16–22.4% alpha)
Swap it for: Vic Secret · compare them →

Brewing values

range on filetypicalbreeder or labmerchant

Alpha acid

16–22.4% typical 19.2

16 22.4

2 sources, spread of 6.4%

Yakima Chief Ranches16.4–22.4
Hop Breeding Company16–22

Beta acid

5.8–8.1% typical 7.0

5.8 8.1

2 sources, spread of 2.3%

Yakima Chief Ranches5.8–8.1
Hop Breeding Company5.8–8.1

Total oil

1.4–4.5 mL/100g typical 3.0

1.4 4.5

2 sources, spread of 3.1 mL/100g

Yakima Chief Ranches1.4–4.5
Hop Breeding Company1.4–4.5

Alpha to beta runs about 2.8:1, which is what governs how fast the bitterness fades in storage.

What to swap it for

Vic Secret 28

aroma — · oils — · chemistry 93 · shifts bittering to dual partial data
Eclipse 27

aroma — · oils — · chemistry 89 · shifts bittering to dual partial data
Enigma 27

aroma — · oils — · chemistry 89 · shifts bittering to dual partial data
Topaz 26

aroma — · oils — · chemistry 85 · shifts bittering to dual partial data
Galaxy 25

aroma — · oils — · chemistry 84 · shifts bittering to dual partial data
Ella 25

aroma — · oils — · chemistry 84 · shifts bittering to dual partial data

Scored on aroma overlap, oil composition and acid chemistry, then nudged up where a brewer has vouched for the swap by hand. An axis we haven't measured earns nothing, so a hop known only by its acid numbers caps out around 30 — the score is how much evidence there is for the swap, not just how close the numbers happen to be. Anything under 50 is a different beer, not a substitution.

Pedigree

Parentage unrecorded.

Notes on this record

Purpose bittering per HBC (Terra Alpha series). Breeder set from HBC 1325 in YCR's own brand URL.

For brewers and data folks: this hop as JSON · the source file