Bullion 10A

Though technically still Bullion, Bullion 10A is a heat-treated and meristem-tip cultured version of the original English variety. Developed by the USDA and released in 1972, it was retired from production in the US in 1985 along with the original Bullion following the introduction of super-alpha varieties.

Also Known As
Characteristics  Same as Bullion
Purpose Bittering
Alpha Acid Composition 8%-13.8%
Beta Acid Composition 2.8%-6.9%
Co-Humulone Composition 42%
Cone Size  Small to medium
Cone Density
Seasonal Maturity Early
Yield Amount 2240-2800 kg/hectare (2000-2500 lbs/acre)
Growth Rate Very high
Resistant to Resistant to verticillium wilt, moderately resistant to downy mildew
Susceptible to
Storability Poor
East of Harvest
Total Oil Composition 1.55 mL/100g
Myrcene Oil Composition 63%
Humulene Oil Composition 12%
Caryophyllene Oil 7%
Farnesene Oil 0.2%
Substitutes  Columbus, Northern Brewer, Galena, Chinook, Brewer’s Gold
Style Guide Stout, Doppelbock, Barley Wine, Imperial Stout


Great Fermentations

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