A wine’s reputation for quality cannot be determined by one vintage alone – the very best must be consistent, year-in, year-out. Today, we’ve analysed our data to determine which wines have the most consistent Quality scores (one of the three categories, alongside Brand and Economics that feed into Wine Lister’s holistic wine ratings).

Assessing all the wines in our database for which there are Quality scores for more than 30 vintages, we analysed the standard deviation of these scores from vintage to vintage. The top 10 wines below are the most consistent when it comes to quality:

Unsurprisingly, these are all big names that have been able to invest in the newest technologies to see them through the more challenging years. Their reliability is testament to their status as great wines. Seven of the world’s top 10 most consistently qualitative wines are French, although of the five Bordeaux left bank first growths, only Margaux, Latour and Haut-Brion make the cut, joined by Petrus and Cheval Blanc from the right bank.  Domaine de la Romanée-Conti is the only producer to boast two wines in the table: La Tâche and Romanée-Conti, also the two most expensive.

Perhaps unexpectedly, the most consistent wine is also the most affordable. At an average price per bottle of £124, Californian Ridge Vineyards Monte Bello sees limited fluctuation in Quality scores between the years, with the vast majority of vintages scoring between 960 and 990. It is followed by Spain’s Bodegas Vega-Sicilia Unico – whose Quality scores on Wine Lister stretch right back to its 1920 vintage, proving almost a century of consistent winemaking.