TopazvsRakau

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

Topaz

Dual purpose

Alpha acid

13.7–20.1%

Beta acid

4.9–7.9%

Total oil

1.3–2.2 mL

Australia

Rakau

Dual purpose

Alpha acid

9–12%

Beta acid

5–6%

Total oil

1.8–2.2 mL

New Zealand

Key differences

When to pick Topaz

  • Higher alpha acid - stronger bittering

When to pick Rakau

  • More myrcene - pronounced citrus and resinous notes

Aroma profile and use

Shared aromas

ResinPine

Only in Topaz

LycheeCloveGrassyTropicalPassion fruit

Only in Rakau

Stone fruitFigFruityApricot

Property

PropertyTopazRakau
Alpha acid13.7–20.1%9–12%
Beta acid4.9–7.9%5–6%
Co-humulone47–53%23–25%
Total oil1.3–2.2 mL1.8–2.2 mL
Myrcene18–56%55–57%
Humulene8–16%16–17%
Caryophyllene6–13%5–6%
Farnesene0–1%4–5%
OriginAustraliaNew Zealand
PurposeDual purposeDual purpose

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