Sticklebract

Technical Data

HPLC & Oil Composition (Measured within 6 months of harvest, stored at 0C)

Alpha Acids12.3%
Beta Acids6.6%
Cohumulone38% of Alpha Acids
Total Oil0.8 ml oil per 100gm cone weight
Concentration88 uL Oil/gram Alpha
Myrcene15.1%
Humulene25.5%
Caryophyllene12.6%
Farnesene6.7%
Citrus-Piney Fraction18%
Floral Estery Fraction4.7%
H/C Ratio2
Other0%

Grower Comments

Maturity Mid season
Yield Good
Growth Habit Clavate frame, vigorous
Cone Structure Prominent bracts, dense, large size
Disease Resistance New Zealand is hop disease free
Storage Stability Good
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An heirloom alpha hop that delivers solid bitterness matched to pine and citrus aroma characters (11-14 % AA)

Breeding: 

Stickbract™ is the world's first commercial triploid and highest alpha hop developed by Dr Rudi Robrough  by open pollination  of the New Zealand developed diploid, First Choice. Released in 1972 from the New Zealand  Horticultural Research Centre at Riwaka. (now Plant and Food Reseach).

Selection: 

Originally selected as a high yielding alpha variety Stickbract™ later became a dual purpose mainstay of the New Zealand Brewing Industry.  Aroma is characterised by citrus and pine needles which this heirloom hop carries into the brewhouse and the finished product.

Brewing: 

Sticklebract™ produces quality beers of assertive bitterness while also displaying fine aroma qualities and character achieved from both late and dry hopping additions. Citrus and pine characters make up a large portion of the oils fraction which become quite pronounced at heightened addition rates. This hop works well in big ales or as a background to imperial styles.  

“A pedigree hop”

Applications: 

Versatile across several styles depending on addition rates but well suited to big ales and imperial beer styles  such as stouts and double IPA’s.