StirlingvsWillamette

Stirling and Willamette are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.

Stirling

Dual purpose

Alpha acid

6–12%

Beta acid

4–6%

Total oil

1.3–1.9 mL

United States

Willamette

Dual purpose

Alpha acid

4–7.2%

Beta acid

3–4.5%

Total oil

0.6–1.6 mL

United States

Key differences

When to pick Stirling

  • Higher alpha acid - stronger bittering
  • More essential oils - more intense aroma
  • Higher beta acid - smoother, longer-lasting bitterness
  • More myrcene - pronounced citrus and resinous notes

When to pick Willamette

  • Richer, more complex aroma profile

Aroma profile and use

Shared aromas

Floral

Only in Stirling

HerbalCitusSpicy

Only in Willamette

CitrusIncenseElderberryCaramelCurry

Property

PropertyStirlingWillamette
Alpha acid6–12%4–7.2%
Beta acid4–6%3–4.5%
Co-humulone21–28%28–35%
Total oil1.3–1.9 mL0.6–1.6 mL
Myrcene44–48%30–40%
Humulene19–23%20–27%
Caryophyllene5–7%7–8%
Farnesene11–17%5–6%
OriginUnited StatesUnited States
PurposeDual purposeDual purpose

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