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Opal Hops
Dual: Aroma and BitteringAlpha 5.0 - 8.0%Germany
Flavor & aroma
Opal is a standout jewel of German hop breeding, representing a sophisticated evolution of the classic Hallertau tradition. Developed by the Hüll Hop Research Institute in 2001 and released commercially in 2004, this variety was engineered to provide brewers with a more robust and aromatic alternative to heritage landrace hops. While it has faced a slower adoption rate in large-scale commercial breweries, it has become a "hidden gem" in the craft world. Opal distinguishes itself with an exceptionally low cohumulone content and a high concentration of linalool, resulting in a hop that is both technically superior and sensorially stunning—offering the structural integrity needed for crisp lagers and the aromatic complexity required for contemporary farmhouse ales.
The sensory profile of Opal is an elegant and multi-layered arrangement of zesty fruit and refined herbal spice. It leads with a primary, "bright" bouquet of sweet orange, dried apricot, and lemon peel, followed by a sophisticated secondary layer of peppery spice and fresh wildflower honey. As the profile develops, brewers will find a pleasant herbal "snap" and a subtle hint of cedar that remains incredibly clean on the palate. Thanks to its balanced oil composition and lack of bitterness harshness, Opal delivers a polished, rounded bitterness and a crisp, effervescent finish. It is the definitive choice for brewers seeking a timeless "Noble" quality with a modern, fruit-forward twist.
If you can't find Opal, the best alternatives are East Kent Golding, Hallertauer Tradition, Styrian Golding, or Tettnanger.
At A Glance
| Profile | Herbal, Spice, Orange, Dried Apricot, Lemon Peel, Peppery Spice, Wildflower Honey, Cedar |
|---|---|
| Purpose | Dual: Aroma and Bittering |
| Alpha Acid | 5.0 - 8.0% |
| Substitutes | East Kent Golding, Hallertauer Tradition, Styrian Golding, Tettnanger |
| Pairs with | Amarillo® (to bridge into more aggressive American citrus profiles), Saphir (to enhance the tangerine and floral notes), Tettnanger (to deepen the herbal spice) |
| Beer Styles | Pilsner, Helles, Witbier, Saison, Hefeweizen, Belgian Ale |
General Information
| Country | Germany |
|---|---|
| Storage Stability | Retains 75% alpha acid |
Brewing Chemistry (Acids & Oils)
| Alpha Acid | 5.0 - 8.0% |
|---|---|
| Beta Acid | 3.5 - 5.5% |
| Cohumulone | 13.0 - 17.0% |
| Total Oil | 0.8 - 1.5 ml/100g |
| Myrcene | 20.0 - 45.0% |
| Humulene | 20.0 - 30.0% |
| Caryophyllene | 8.0 - 15.0% |
| Farnesene | < 1.0% |
| Linalool | 0.9 - 1.5% |
| Geraniol | ~0.2% |
| Total Polyphenols | 3.0 - 4.5% |
| Xanthohumol | 0.3 - 0.5% |
Growth & Cultivation
| Yield | 1,600 - 1,900 lbs/acre |
|---|---|
| Maturity | Mid season |
| Resistant | Powdery Mildew (excellent) |
| Tolerant | Verticillium Wilt (high), Downy Mildew (high) |
| Growth Rate | High / Vigorous |
| Cones | Medium-sized, firm, and moderately dense. The cones are noted for their high lupulin saturation and |
| Ease of Harvest | Excellent; the bines are structurally strong, and the variety is perfectly suited for modern mechani |
| Sex | Female |
| Leaf Color | Medium green |
| Side Arm Length | 20" - 30" (medium) |
Opal Aroma/Flavor Profile
- 2026-04-18 13:29:32