Pierre Olivier Brut Vin Mousseux NV is made from 100% Airen.

A value sparkling brut, made with Airen grapes from around the French/Spanish border (next to the Pyrenees). This is a new Kysela Project.

The bubbles are obtained using the Charmat method, named after Eugene Charmat, where the second fermentation takes places in a large, closed pressurized tank. It is different from the Methode Champanoise as the secondary fermentation doesn't take place in the bottle.