How do you tell Grenache Blanc and Viognier apart in a blind tasting?

The clearest separator between Grenache Blanc and Viognier is color intensity: Grenache Blanc is Pale while Viognier is Medium. Lead with that to resolve the blind call.

Is Grenache Blanc or Viognier higher in color intensity?

On the WSET ladder, Grenache Blanc is Pale and Viognier is Medium for color intensity.

Are Grenache Blanc and Viognier red or white?

Grenache Blanc and Viognier are both white grape varieties.

Grenache Blanc vs Viognier — how to tell them apart

Structure compared

Structure compared	Grenache Blanc	Viognier
Acidity	Medium	Medium(−)
Body	Medium(+)	Medium(+)
Alcohol	Medium	High
Color intensity	Pale	Medium
Aromatic intensity	Medium	Pronounced

Signature aromas

Grenache Blanc

peargreen applefennel

Viognier

apricotpeachhoneysuckle

Common questions

How do you tell Grenache Blanc and Viognier apart in a blind tasting?: The clearest separator between Grenache Blanc and Viognier is color intensity: Grenache Blanc is Pale while Viognier is Medium. Lead with that to resolve the blind call.
Is Grenache Blanc or Viognier higher in color intensity?: On the WSET ladder, Grenache Blanc is Pale and Viognier is Medium for color intensity.
Are Grenache Blanc and Viognier red or white?: Grenache Blanc and Viognier are both white grape varieties.