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Amarillo
Amarillo is an American hop variety that was discovered by chance in a hop field in Washington in 1990. It is known for aromas of citrus, especially orange and grapefruit, with notes of stone fruit such as peach and apricot.
- CountryUnited States
- BreederVirgil Gamache Farms (Washington); inventors in the plant patent: Paul, Bernard and Steven Gamache; variety name VGXP01
- Introduceddiscovered in 1990; plant patent granted in 2003
- Parentageunknown; according to the plant patent, found in a field of the hop variety Liberty near Toppenish
- Typeboth (aroma and bittering); John Palmer and Belgian researchers classify it as a dual-purpose hop
- Alpha acids8–11% (plant patent and Hop Growers of America); the trade gives 6.5–11%, which varies by harvest
What is it?
Aroma and flavour
Use and similar hops
Myth or fact?
Partly true
‘Amarillo is a wild hop that just sprang up somewhere.’
Amarillo was indeed not crossed by a breeder: it is a chance discovery of unknown origin. But it was not found in the wild, and not around 1930 either: according to the patent in 1990, in a newly planted hop field.
Partly true
‘The more hops there are in a beer, the longer it keeps.’
Hops do inhibit some of the bacteria that spoil beer, that is correct. But not all beer spoilers, and the hop aroma itself is fragile: strongly hopped beers are best drunk fresh and stored cool.
A bit of history
How to taste it
Where it takes centre stage
Similar to: Cascade, Centennial
More hop varieties
CascadeCentennialChinookCitraColumbus (CTZ)East Kent GoldingsEl DoradoFuggleGalaxyHallertau BlancHallertauer MittelfrühIdaho 7MosaicMotuekaNectaronNelson SauvinRiwakaSaazSabroSimcoeStrataTettnangerVic Secret
Terms
- Hop oil
- The volatile, fragrant oil from hops (according to John Palmer 0.5–3% of dried hops; some modern varieties are higher, Galaxy according to HPA 2.6–3.3 ml per 100 grams), with compounds such as myrcene, linalool and geraniol; it largely evaporates during the boil, which is why brewers add aroma hops late or dry hop them.
- Myrcene
- Often the largest component of hop oil (but not in every variety), with a spicy, resinous, green aroma; in beer relatively little of it remains, because a large part escapes with the carbon dioxide or sticks to the yeast.
- Farnesene
- One of the heavier aroma compounds in hop oil. Saaz and Tettnanger have a lot of it (about 14–20% or more of the oil), Hallertauer Mittelfrüh and Goldings almost none; such differences in the oil help to tell hop varieties apart chemically.
- Thiols
- Sulfur compounds that you can smell at just a few to a few dozen nanograms per litre, such as 4MMP (blackcurrant, passion fruit) and 3MH (rhubarb, grapefruit); they come from hops and also from malt, often in a bound form from which yeast can release them during fermentation.
- Biotransformation
- The conversion of aroma compounds by yeast during fermentation, for example rosy geraniol from hops into citrusy citronellol, or the release of fruity thiols; according to current knowledge it does not happen if hops are only added after the yeast has been removed from the beer.
- Dry hopping
- Adding hops after the wort has been boiled, often during or after fermentation, mainly for a fresh, strong hop aroma.
- Dual purpose
- Hops that are suitable both for bittering and for giving aroma, according to John Palmer with fairly high alpha acids and yet a good aroma; examples are Amarillo, Citra and Mosaic.
- Plant patent
- An American patent on a new plant variety that is propagated asexually, for example by cuttings. Sabro is protected this way (PP29577), and Columbus had such a patent (PP10956, since expired); in addition, breeders often use a brand name, such as Sabro for the variety HBC 438.
- Cryo hop
- Pellets of concentrated lupulin: the resins and aroma oil of the hop, without the plant material of the cone. Intended to give a lot of hop flavour and aroma without astringent flavours or extra plant material in the beer. NZ Hops offers Cryo Hops® of its varieties in cooperation with Yakima Chief Hops.
Sources for this page
- Plantoctrooi US PP14,127 P2 (2003), Hop plant named 'VGXP01' (Amarillo), P.A., B.J. & S.J. Gamache — Google Patents
- 35 U.S. Code § 161 — Patents for plants (Cornell Legal Information Institute)
- Yakima Chief Hops — Amarillo® Brand VGXP01
- BarthHaas — Amarillo® VGXP01
- Real Academia Española, Diccionario de la lengua española — amarillo
- Hop Growers of America, Variety Manual 2016 Update (archiefkopie)
- John Palmer, How to Brew — Chapter 5: Hops (archiefkopie)
- Cibaka, Gros, Nizet & Collin (2015), Quantitation of selected terpenoids and mercaptans in the dual-purpose hop varieties Amarillo, Citra, Hallertau Blanc, Mosaic, and Sorachi Ace, J Agric Food Chem 63: 3022
- Kankolongo Cibaka e.a. (2016), 3-Sulfanyl-4-methylpentan-1-ol in Dry-Hopped Beers: First Evidence of Glutathione S-Conjugates in Hop, J Agric Food Chem 64: 8572
- Klimczak, Cioch-Skoneczny & Duda-Chodak (2023), Effects of Dry-Hopping on Beer Chemistry and Sensory Properties — A Review, Molecules 28: 6648
- Charles Faram — Amarillo (Hop Oracle)
- USDA NASS, National Hop Report, 19 december 2025 (areaal per ras 2023–2025)







