The Hop Plant Company Hop Plant Propagation Specialists 

Admiral  

Admiral was released in 1996 by Horticulture Research International (HRI) at Wye College in the UK and derived from Northdown and Challenger breeding lines. It is a tall hop, resistant to downy mildew, but only slightly tolerant to wilt and susceptible to powdery mildew. 
 
It grows vigorously, produces small compact cones and harvests well. Its storage stability is reasonably good. Admiral is a wonderful resinous hop with a relatively high alpha characteristic and excellent dry hop aroma qualities. 
Origin 
 
 
United Kingdom 
Health Status 
Supply Restrictions 
Plant Varity Rights restrict supply to British Hop Association members only 
Primary Use 
Bittering 
 
 
 
 
Height 
Tall 
 
 
 
 
Key Flavours 
Beer Styles 
 
Extra Special Bitter, American India Pale Ale, Belgian India Pale Ale, Imperial India Pale Ale, India Pale Ale, Pale Ale, Bitter 
Also Known As 
RH40 
Special Group 
None 
Growing Information 
Season Maturity 
Mid 
Ease of Harvest 
Easy to moderate 
Yield 
1300 -1900 kg/hectare 
Wilt Resistance 
Tolerant 
Powdery Mildew Resistance 
Susceptible 
Downy Mildew Resistance 
Resistant 
Hop Mosaic Resistance 
Tolerant 
Brewing Values 
Alpha Acid 
13 - 16% 
Beta Acid 
4 – 6% 
Alpha – Beat Ratio 
3:1 
Hop Storage Index 
— 
Co-Humulone 
37 – 45% 
Total Oils 
1.0 – 1.7 mL/100g 
Myrcene 
45% 
Humulene 
23 – 26% 
Caryophyllene 
6 – 8% 
Farnesene 
2% 
 
 
 
 
 
 
 
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