Crystal
Crystal is a triploid variety developed from the German aroma hop variety Hallertauer Mittelfrüh with primary contributions from Cascade, Brewer’s Gold and Early Green. Released in 1993 from the USDA breeding program, Crystal has become popular in US craft brewing as a triploid Hallertauer.
Flavour profile
Woody, green, floral and fruity
Ancestry
Half-sister of Mt. Hood and Liberty derived from Hallertau Mittelfrüh and other crosses
Recommended beer styles
Analytical data
Cultivation Area
US
Ancestry
Half-sister of Mt. Hood and Liberty derived from Hallertau Mittelfrüh and other crosses
Alpha Acids (%)
4.0 – 6.0%
Beta Acids (%)
5.0 – 6.7 %
Alpha/Beta Ratio
Cuhomulone (% of alpha acids)
20-26%ofalphaacids
Total Oils (ml/100g)
0.8 – 2.1ml/100g
Oil Concentration (microlitres of oil/g alpha)
Myrcene (% of whole oil)
40-65% of total oil
Linalool (% of whole oil)
Caryophyllene (% of whole oil)
4-8% of total oil
Farnesene (% of whole oil)
<1% of total oil
Humulene (% of whole oil)
18-24% of total oil
Selinene (% of whole oil)
Humulene/Caryophllene Ratio
Comet
Characteristics
Comet is a hop variety with relatively high alpha acids content and provides a “wild American” aroma. It was released as high alpha hop from the USDA hop breeding program in 1975 primarily for production in Washington and Idaho. The variety is susceptible to downy mildew but resistant to verticillium wilt.
