For simplicity we divide sparkling wine into two distinct sub-styles: Fruity Sparkling Wine and Complex Sparkling Wines. Fruity sparkling wines are usually made by the Charmat (tank) method where the secondary fermentation takes place in large, closed, pressurised tanks. These include less expensive sparkling wines from France, NZ and Australia as well as Prosecco and Asti from Italy. Complex sparkling wines on the other hand are generally more subtle, less fruity and display a greater array of flavours and aromas. Secondary fermentation takes place in the bottle, usually by the methode champenoise method. These include better quality NZ and Australian Methode Champenoise , Cava from Spain and of course French Champagne.