Emerald SpirevsBobek

Emerald Spire (dual purpose) and Bobek (bittering) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Emerald Spire

Dual purpose

Alpha acid

8.6–13%

Beta acid

3.5–4.5%

Total oil

-

United States

Bobek

Bittering

Alpha acid

3.5–9.3%

Beta acid

4–6.6%

Total oil

0.7–4 mL

Slovenia

Key differences

When to pick Emerald Spire

  • Higher alpha acid - stronger bittering
  • Versatile - works for both bittering and aroma
  • Richer, more complex aroma profile

When to pick Bobek

  • Higher beta acid - smoother, longer-lasting bitterness
  • Bittering workhorse - efficient in the mash

Aroma profile and use

No shared aromas - the varieties have divergent profiles.

Only in Emerald Spire

PeachFruityWhiteGrapesWatermelonBubbleMelonHoneydew

Only in Bobek

PineFloral

Property

PropertyEmerald SpireBobek
Alpha acid8.6–13%3.5–9.3%
Beta acid3.5–4.5%4–6.6%
Co-humulone38–39%26–31%
Total oil-0.7–4 mL
Myrcene36–37%30–45%
Humulene10–11%13–19%
Caryophyllene7–8%4–6%
Farnesene0–1%4–7%
OriginUnited StatesSlovenia
PurposeDual purposeBittering

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