The producer
Why it matters.
Passmore Ranch pairs farmed-roe sourcing and selection with hands-on finishing and has documented historical use at SingleThread and The Kitchen, two leading Northern California restaurants.
The origin.
Passmore Ranch is a California specialty purveyor rather than a single-origin sturgeon farm. Its official materials describe sourcing and selecting farmed roe followed by refining, maturation, and hand-packing for restaurant and direct service.
What they make
Products.
caviar
Passmore Ranch Reserve
The official product page documents Passmore Ranch Reserve as a named house selection; no restaurant relationship in this cohort is mapped to this SKU.
Ingredient · Caviar
Restaurant relationships
Used by.
- SinglethreadSource ↗
Restaurant · Kaiseki-inspired modern Californian tasting menu · Healdsburg, United States
Historical · Supplies · Documented before record–Nov 2019
- The KitchenSource ↗
Restaurant · Contemporary American Fine Dining · Sacramento, United States
Historical · Supplies · Documented before record–Sep 2016
Farms, studios & facilities
Where they work.
Processing Facility · Primary
Passmore Ranch caviar atelier
Sloughhouse, California, United States
Sources & verification
- Edible Marin & Wine Country — Eat California Caviar — Made By Producer Research· Nov 2019
- Passmore Caviar — official producer site — Made By Producer Research· Aug 2026
- Passmore Caviar — official Ranch Reserve product — Made By Producer Research· Aug 2026
- Passmore Caviar — official family FAQ — Made By Producer Research· Aug 2026
- The Kitchen — Caviar Dreams — Made By Producer Research· Feb 2016
- The Kitchen — September 2016 menu — Made By Producer Research· Sep 2016