01
Let capacity follow the vintage
The variable-capacity format lets one tank work properly at different fill levels, so lot sizes and harvest variation stop dictating the tank population.
Why this tank
Harvests that never match the plan.
A Diamond Square VC Fermenter is not chosen for its warranty. It is chosen when the vintage keeps arriving at its own volume — lots splitting differently, blocks ripening unevenly — and the tank that was exactly right last year is the wrong size this year.
For the wine, that means the boundary above a partial volume is real: sealed by Everseal™, the hold is protected rather than supervised. For the cellar, it means flexibility no longer costs the geometry — a cellar organised around square rows keeps its rows, its walls, its platforms and its space efficiency.
The decision came with a warranty attached. Launched in 2025, the format carries five years in writing — the first of its kind on a square VC fermenter — because adopting a new format asks a cellar to commit before the industry has.
02
Keep the floor plan square
Flexibility no longer costs the cellar its geometry. The tank keeps the space advantages of the square format — rows, walls, platforms, and walkways stay aligned.
03
Hold partial volumes without supervising them
Sealed by the Everseal™ system — 60 days of verified maintenance-free pressure — partial volumes are held with confidence rather than a maintenance routine.
