company background

patented technology

staff

Flextank Wine Maturation Technology

Wines require oxygen in various levels at different stages throughout the processes of fermentation, storage, maturation and bottling. Supplying the correct level of oxygen at each stage is still a poorly understood and complicated science - with too little or too much resulting in poor or downgraded wine quality.

Most high-end red wines and some styles of white wines are matured in oak barrels to impart oak character and add complexity, as well as softening the wine. This process involves the exposure of the wine not only to oak flavours, aromas and tannins but also to low levels of oxygen delivered via various mechanisms involving the barrel staves, bung and head boards. Both components of barrel ageing - oxygenation and flavour absorption - are critical to the maturation process. With an oak barrel, both flavour and oxygen permeability decreases rapidly over the first four to five years, at the end of which time the barrel becomes effectively useless and is usually discarded.

Flextank maturation vessels exactly mimic the oxygen permeability of traditional oak vessels and are simple to use. Unlike oak barrels however, Flextank permeability levels remain stable over time, providing an almost unlimited lifespan with consistent performance. When coupled with oak staves, Flextank technology replicates the barrel environment for maturation, with advantages in cost, quality, consistency, hygiene and versatility.

With Flextank’s intimate technical knowledge of winemaking and oak use, this product combination (maturation vessels and oak) captures revenue from sales relating to both capital expenditure (maturation vessels) and operating expenditure (recurring sales of consumable oak) by winemakers.