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Willamette (US)
Willamette, the triploid daughter of Fuggle, was released as a U.S. aroma variety in 1976 from the U.S.D.A. breeding program in Oregon. The variety is characterized by a low alpha acids content, mild aroma similar to Fuggle and medium cone yields. It is more difficult to grow than most varieties; however, it is still widely grown in all U.S. growing areas where it has largely replaced Fuggle. |
| Maturity | Medium |
| Growing Areas | WA/OR/ID |
| Yield (kilos per hectare) | 1456 - 1792 |
| Yield (lbs per acre) | 1300 - 1600 |
| Alpha Acids* | 4.0 - 6.0% |
| Beta Acids | 3.5 - 4.5% |
| Alpha-Beta Ratio | 1.3 - 1.4 |
| Cohumulone | 30 - 35% of alpha acids |
| Total Oils | 1.0 - 1.5 (mls. per 100g dried hops) |
| Myrcene | 30 - 40% of total oils |
| Beta-Caryophyllene | 6.5 - 8.2% of total oils |
| Humulene | 20 - 27% of total oils |
| Farnesene | 5 - 6% of total oils |
| Storage** | 62% |
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The analytical values are typical for each variety at harvest time but values can vary among crop years, growing areas, growers, and with aging after harvest. * Alpha Acids are determined by ASBC spectrophotometric (Hops 6) in the USA. Alpha Acids for extracts are determined by HPLC (Hops 14) in the USA. ** Storage is percent remaining after 6 months at room temperature.  | |