The producer
Why it matters.
The current sourcing relationship between IWA 5 and NARISAWA traces IWA sake to Tateyama, Toyama, Japan, with assemblage sake brewing recorded in the producer profile.
The origin.
IWA 5 is a Toyama sake project founded by former Dom Pérignon chef de cave Richard Geoffroy and served at NARISAWA. The reviewed evidence connects it to NARISAWA through IWA sake; temporal limits remain explicit.
Current & documented relationships
Used by.
Sources & verification
- Official or authoritative producer profile: IWA 5 — Made By Producer Research· Jul 2026
- Narisawa — Made By Producer Research· Jul 2026