Pacific Gem Hop
|Country:||New Zealand (NZ)|
Purchase Pacific Gem Hops
This hop can be purchased at Yakima Valley Hops.
Origin and Geneology of the Pacific Gem Hop
The ancestry of the Pacific Gem hop includes Smoothcone, Californian Late Cluster, and Fuggle. It was released to the public in 1987.
New Zealand hops begin to be harvested in late February or March and continues through to early April.
Flavor & Aroma Profile of Pacific Gem Hops
Pacific Gem is a bittering hop that is commonly used only to bitter the beer during brewing, and not for too much flavor and aromas.
The Pacific Gem has specific aroma descriptors that include spicy black pepper and berry fruit aroma characteristics. Some brewers have noted delicate blackberry, floral, pine or oak tones as well.
Brewing Values for Pacific Gem Hops
These are the common ranges that we've seen with Pacific Gem hops over the years. Each year's crop can yield hops that have slightly different qualities, so these number ranges are based on history.
|Alpha Acid % (AA)|
Alpha acids are the main source of bitterness in beer. Longer boil times will result in isomerization of more alpha acids leading to increased bitterness. Learn more »
|Beta Acid %Beta acids are a component of hop resins responsible for contributing volatile aromatic and flavor properties. Beta acids contribute no bitterness.||7.0-9.0%8% avg|
|Alpha-Beta RatioThe ratio of alpha to beta acids dictates the degree to which bitterness fades during aging. 1:1 ratios are common in aroma varieties.||1:1 - 2:12:1 avg|
|Hop Storage Index (HSI)The HSI indicates the percent of alpha and beta acids lost after 6 months of storage at room temperature (68°F or 20°C). The freshest hops will always be the best.||22% (Great) 0.22|
|Co-Humulone as % of AlphaLow cohumulone hops may impart a smoother bitterness when added to the boil as opposed to higher ones that add a sharper bitterness to the final beer. Learn more »||35-40%37.5% avg|
|Total Oils (mL/100g)These highly volatile, not very soluble oils are easily boiled off, but add flavor and aroma to the finished beer when added very late in the boil or during fermentation. Learn more »||0.8-1.6 mL1.2mL avg|
|Total Oil Breakdown:|
|› MyrceneFlavors: resinous, citrus, fruity (β-myrcene)||30-40%35% avg|
|› HumuleneFlavors: woody, noble, spicy (α-caryophyllene)||20-30%25% avg|
|› CaryophylleneFlavors: pepper, woody, herbal (β-caryophyllene)||6-12%9% avg.|
|› FarneseneFlavors: fresh, green, floral (β-farnesene)||0-1%0.5% avg|
|› All OthersIncluding β-pinene, linalool, geranoil & selinene||17-44%|
Beer Styles using Pacific Gem Hops
Some popular beer styles that make use of the Pacific Gem hop include Pale Ale, IPA & Lager.
Pacific Gem Hop Substitutions
If the Pacific Gem hop is hard to find or if you are simply out of it on brew day, you can try to substitute it with a similar hop. The old way of choosing replacement hops was done by experience and "feel". There is nothing wrong with that way. However, we wanted to build a data-driven tool to find your Pacific Gem substitutions.
Experienced brewers have chosen the following hop varieties as substitutions of Pacific Gem:
Is Pacific Gem available in lupulin powder?
Unfortunately, there is no lupulin powder version of the Pacific Gem hop. Neither Yakima Chief Hops (Cryo/LupuLN2), Haas (Lupomax) or Hopsteiner have created versions of this hop in lupulin powder form yet. Too bad too - it is pure hop lupulin powder, which leads to huge, concentrated flavor when used in the whirlpool or dry hop additions.
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