IPA Knowledge Base
🌿Ingredients

Amarillo

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Amarillo is the orange-citrus and floral hop of classic American brewing β€” a variety with an unusual origin story, having been discovered growing wild rather than deliberately bred. It is a longtime fixture of the West Coast IPA and a frequent partner to Simcoe and Centennial.

#Variety Statistics

AttributeDetail
Alpha acid~8–11%
OriginUSA (Washington)
Year released~2000 (commercialized)
BreedingA chance discovery β€” a wild seedling found in a hop yard by Virgil Gamache Farms
Key oilsHigh in geraniol; myrcene-forward
Flavor descriptorsOrange, lemon, grapefruit, floral, melon, stone fruit
Typical stylesWest Coast IPA, American IPA, Double IPA, pale ale

#Character

Amarillo's signature is orange β€” sweet citrus zest more than the grapefruit of Cascade β€” laced with floral and melon notes. It owes much of this to an exceptionally high geraniol content. Geraniol is also a prime substrate for yeast Biotransformation, which can convert it into citronellol, subtly shifting Amarillo's character during fermentation.

β—†A West Coast staple

Amarillo, Simcoe, and Centennial together produced the aroma of an entire era of West Coast IPA brewing, including Russian River's Pliny the Elder and Three Floyds' hop-forward catalog.

#Use in IPA

A dual-purpose hop, Amarillo can bitter but is valued for its bright orange aroma in late and dry-hop additions. It blends beautifully, lending a juicy citrus lift that smooths the piney edges of hops like Simcoe.

β–²A proprietary, hard-to-get hop

Amarillo is trademark-protected and grown only under license by a limited number of farms. Supply has historically been tight and inconsistent β€” a classic case study in Hop Contracts and the Hop Supply Chain. Brewers sometimes substitute geraniol-rich alternatives when allocations fall short.

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