Subsea wine vinification EGIATEGIA 🍷
Since 2008, EGIATEGIA has carried out fermentations in tanks immersed 15 metres deep in the Bay of Saint-Jean-de-Luz. This stage corresponds to the second alcoholic fermentation, also known as sparkling method or “tirage” or “prise de mousse” in sparkling winemaking processes. This stage supports the often neglected or little known yet essential role of yeasts in the winemaking process.
Yeasts play an essential role in winemaking. During fermentation, their metabolism turns sugar into alcohol, but also generates many secondary flavours. Once alcoholic fermentation has occurred, the autolysis of these same yeasts, in the form of increasingly finer lees, releases more aromatic components.
The marine environment, with its extraordinary physical conditions, modifies both the metabolism of yeasts and their autolysis, thus revealing new aromatic profiles that would not have been created on land.
The originality of our concept also lies in the fact that in subsea winemaking, the fundamental steps of vinification occur in tanks rather than bottles. The shape of our tanks is designed and patented for this specific use, ensuring a safe balance of pressures between outside (the ocean) and inside (the wine).
This innovative and extraordinary winemaking method brings out flavours that would not appear spontaneously in other conditions.
EGIATEGIA : SURPRISING NOTES BROUGHT OUT BY THE SUBSEA ENVIRONMENT
Just like the great effervescent wines, grape selection, pressing and first fermentation, are three critical preparatory steps for the rest of vinification. Not all wines benefit from barrel ageing, and the same applies to subsea immersion.