The BARENA process is based on the unique principle of natural regeneration by a physico-mechanical process without any disassembly of the cask.
A natural abrasive based on purified quartz crystal is projected inside the barrel, followed by two non-chemical treatments to sanitise the wood and extract the colour and deposits from previous uses.
Advantage for spirits :
- Absence of residual sulfur in the pores of the wood, from the pre-existing wines.
- Preservation of the original cask toast.
- 70% of the original aromas and extractable tannins are still available (compared to a new oak cask).