Ultra → Crystal
workable matchUse 1.44× the weight for the same bitterness
alpha acids 6.35% → 4.4% · 33% aroma match
- Keeps
- Floral
- Loses
- Mild, Pleasant
- Adds
- Woody, Green, Fruity, Spicy, Cinnamon, Nutmeg, Black currant
Proven alternatives to Ultra and hops with a similar aroma profile. Pick by availability, price or country of origin.

Crystal

Liberty

Mount Hood

Saaz (US)

Tettnanger
Bitterness scales with alpha acid times weight, so for bittering additions rescale the weight by the alpha ratio — the multiplier for each substitute is given below. For late, whirlpool and dry-hop additions dose 1:1 by weight and go by aroma instead, because alpha acids do not drive those.
Use 1.44× the weight for the same bitterness
alpha acids 6.35% → 4.4% · 33% aroma match
Use 1.34× the weight for the same bitterness
alpha acids 6.35% → 4.75% · 33% aroma match
Use 1.07× the weight for the same bitterness
alpha acids 6.35% → 5.95% · 0% aroma match
Use 1.69× the weight for the same bitterness
alpha acids 6.35% → 3.75% · 0% aroma match
Use 1.53× the weight for the same bitterness
alpha acids 6.35% → 4.15% · 33% aroma match
Look for similar alpha acid content (within 2%) and overlapping aroma notes. The more shared notes, the safer the swap.