Clos in Champagne, vineyards surrounded by walls or hedges, have a rich and profound history, intimately linked to the viticultural evolution of the region. The term "clos" originated in the Cistercian abbeys where monks, seeking to protect and isolate their vines, surrounded them with high stone walls. This practice, which modified the microclimate of the plots, helped preserve the quality of the grapes. After the French Revolution, the term was extended to all parcels enclosed, not only by walls, but also by hedges or thick trees.
Over the centuries, clos became synonymous with exceptional wines. A 1921 decree regulated the use of the term on labels, requiring authorization from the INAO once the vineyard had been confirmed as a "clos". Today, there are 39 recognized clos in Champagne, each offering a unique climate and top-quality wines, making clos a symbol of prestige in the world of champagne.