Hop: Opal

Description

Opal was bred by Hüll Hop Research Institute in 2001, released commercially in 2004. The hop has not been well received the commercial breweries.

General Information

Profile Sweet, spice (pepper, aniseed), herbal (grass) and light orange.
Country Germany
Substitutes East Kent Golding, Smaragd, Styrian Golding
Purpose Dual: Aroma and Bittering
Yield 1420 - 1470 lbs/acre
Storage Retains 60%-70% alpha acid contents after 6 months of storage at 68°F.
Beer Styles Pilsner, Lager, Blonde Ale
Resistant Verticillium wilt, downy mildew, powdery mildew
Tolerant Aphid

Acids

Alpha Acid 5.0 - 8.0%
Beta Acid 3.5 - 5.5%
Cohumulone 15.0 - 17.0%

Oils

Total Oil 0.8 - 1.3 ml/100g
Myrcene 30.0 - 45.0%
Humulene 20.0 - 25.0%
Caryophyllene 9.0 - 10.0%
Farnesene < 1.0%
Linalool 0.19 - 0.20%

Additional Characteristics

Growth Rate Moderate
Maturity Medium early
Ease of Harvest Difficult

Opal Aroma/Flavor Profile

Tags

Aniseed Aroma And Bittering Blonde Ale East Kent Golding Germany Grass Hop Research Institute Lager Orange Pepper Pilsner Smaragd Styrian Golding Sweet
Last Updated
  • 2020-11-24 08:26:25 (Added: 2020-11-24 08:26:25)
Source(s)

Hops Catalog

Did you know?
  • Dwarf variety hops grow shorter in height than traditional varieties but, importantly, produce the same yield. This combination makes harvest easier.
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Explanations
  • Storage: is based on the percentage of alpha acids remaining after 6 months at 20*F.
  • Oil composition percetages are based on the total percentage of oil in the hop. Example: 10 - 20% means that for the specific oil it is 10 - 20% of the overall oil make up.
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