Comet Hop
| Purpose: | Dual |
|---|---|
| Country: | United States of America (USA) |
| International Code: | COM |
| Comparison | Compare with other hops |
Purchase Comet Hops
Comet hops are available to be purchased at multiple suppliers. We've conveniently linked to the most popular hop suppliers as well as Amazon.com. Every supplier may have different prices, harvest years and amounts available for purchase.
Origin and Geneology of the Comet Hop
Comet was originally released as a high alpha by the USDA in 1974. Its parentage is English Sunshine and a native American hop giving it a wild American characteristic. Commercial production ceased in the 1980s in favor of newer super-alpha hops.
US hops begin to be harvested in mid-to-late August for most aroma varieties.
Flavor & Aroma Profile of Comet Hops
Comet is a dual-purpose hop that can be used in all hop additions throughout the brewing process.
Comet hops have aroma descriptors that include subtle, wild American grassy and grapefruit.
Tags: #grassy #grapefruit #wild
Brewing Values for Comet Hops
These are the common ranges that we've seen with Comet 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 » | 8-12.4%10.2% avg |
|---|---|
| Beta Acid %Beta acids are a component of hop resins responsible for contributing volatile aromatic and flavor properties. Beta acids contribute no bitterness. | 3.0-6.1%4.6% 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 - 4:13:1 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. | 33% (Fair) 0.326 |
| 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 » | 34-45%39.5% 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 » | 1.0-3.3 mL2.2mL avg |
| Total Oil Breakdown: | |
| › MyrceneFlavors: resinous, citrus, fruity (β-myrcene) | 40-65%52.5% avg |
| › HumuleneFlavors: woody, noble, spicy (α-caryophyllene) | 1-2%1.5% avg |
| › CaryophylleneFlavors: pepper, woody, herbal (β-caryophyllene) | 5-15%10% avg. |
| › FarneseneFlavors: fresh, green, floral (β-farnesene) | 0-1%0.5% avg |
| › All OthersIncluding β-pinene, linalool, geranoil & selinene | 17-54% |
Beer Styles using Comet Hops
Some popular beer styles that make use of the Comet hop include Ale & Lager.
Comet Hop Substitutions
If the Comet 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 Comet substitutions.
Experienced brewers have chosen the following hop varieties as substitutions of Comet:
Is Comet available in lupulin powder?
Yes! There is a version of the Comet hop in lupulin powder form. Comet lupulin powder is suggested to be used at about half the amount as you'd normally use with pellets. The Cryo/LupuLN2 (Yakima Chief Hops), Lupomax (Haas) and Hopsteiner products are pure concentrated lupulin powder, which add big flavor when used in the whirlpool or dry hop additions.
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