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Admiral Hops

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Admiral hops have a high acid content and come from an English-growing facility. Dr. Peter Darby at Wye College is responsible for establishing this orange-tasting hop. The high alpha acids make it a good choice for bittering additions.

Admiral has a typical range of 13% to 16.2% alpha acid content, which is why we recommend it as a bittering hop. This works well in any style on the higher end of the IBU range.

Usage:Bittering
Country of Origin:United Kingdom
Hop Growers Code:RH40

Where To Buy Admiral Hops

Admiral Hops
Amazon
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Admiral Flavor And Aroma

Admiral is a bittering hop that is often described to have the following aroma characteristics:

citrus

orange, citrus

herbal

herbal

pine trees

piney

Admiral Hop Oil Breakdown

Hop oils can vary year to year and farm to farm but based on our research, here are the typical values we have seen reported. This information comes from various hop farms, The Hop Aroma Compendium, and For The Love Of Hops.

Alpha Acid % (AA)
Alpha acids are what is isomerized when boiling to create bitterness in beer.
13% – 16.2%
Beta Acid %
Beta acids are what give hops their more aroma and flavor compounds.
4.8% – 6.1%
Alpha-Beta Ratio
This ratio of alpha acids to beta acids determines how quickly bitterness fades during aging. Lower ratios are common for aromatic varieties.
2:1 – 3:1
Co-Humulone as a % of Alpha
Higher numbers are said to impart a harsher bitterness.
37% – 45%
Total Oils (mL/100g)
With more total oils, typically comes a more complex hop profile but these are highly volatile compounds.
1mL – 1.7mL
Myrcene
green, resinous
39% – 48%
Humulene
woody, piney
23% – 26%
Caryophyllene
woody
6% – 7%
Farnesene
floral
1.8% – 2.2%
Other Oils: Includes beta-ionine, beta-pinene, limonene, linalool, geranoil & selinene16% – 32%
Hop Storage Index (HSI)
The HSI indicates the percent of alpha and beta acids lost after 6 months of storage at room temperature (68°F or 20°C).
Retains 15% of its alpha acid after 6 months of storage at 20ºC (68ºF).
Hop Storage Index (HSI) RatingPoor

Admiral Hop Substitutions

Replacing one hop for another is seldom straightforward but sometimes you don’t have the right hop or the right quantity of hops for the beer you want to make. For those situations, we have made a comprehensive list of hops to substitute on brew day.

These substitutions aren’t perfect as hop chemistry is pretty complex.

We wanted to make this list of substitutions with varietals that are easy to find when possible. For Admiral, we recommend substituting with the following hops:

Beer Styles

For the most part, any hop could have a place in just about any beer style. Based on popular beers, historical usage, and our own preferences, we would recommend using Admiral hops for ESB, IPA, Belgian IPA, Blonde Ale, and Pale Ale. That being said, experiment and see what works best for you.

References

https://www.hopslist.com/
https://www.ars.usda.gov/
https://www.brewersassociation.org/
https://www.barthhaasx.com/
https://www.yakimachief.com/
Hieronymus, Stan. For The Love of Hops. Brewers Publications, 2012
The Hop Aroma Compendium. 2012