 Roero wines include the red Roero, as well as the white Roero Arneis, and sparkling white Roero Arneis Spumante.The name "Roero" lacking any further specification is reserved for red wines made from a minimum of 95% Nebbiolo grapes with the addition of 2%–5% of non-aromatic red varieties.Roero must be aged in cellars for twenty months, six of them in wooden barrels, while Roero riserva (reserve) must be aged at least 32 months total, with the same minimum of six months spent in wood.