The appellation is located as an enclave within the area Coteaux du Layon in the winegrowing region Loire, The name is derived from the "best quarter" (Quart) around Chaume in the municipality of Rochefort-sur-Loire. In ancient times, the feudal lord retains the revenues of this quarter. The vineyards cover over 50 hectares of vineyards on steep slopes facing south on the right bank of the Layon, a tributary of the Loire. The durable sweet wine becomes 100% unmixed from rotten (not necessarily) or at least overripe grapes of the variety Chenin Blanc (here Pineau de la Loire) won. The yield is limited to a maximum of 25 hl / ha, the alcohol content must be at least 12% vol, the residual sugar content at least 34 g / l.
In 2003, in the municipality of Rochefort-sur-Loire, there was an area called Coteaux du Layon Chaume. Quarts de Chaume producers have argued that this is a downgrading of their higher rated AOC. On the part of the INAO In 2011, a special arrangement was adopted. Quarts de Chaume can be supplemented with "Grand Cru" and for Chaume there is the name Coteaux-du-Layon Premier Cru Chaume.
Known producers of the area are Château de Bellerive, Château Pierre-Bise, Domaine des Baumard Domaine des Forges, Domaine de La Poterie and Domaine de la Roche Moreau. A second enclave within the Coteaux du Layon area with very similar wine is the AOC Bonnezeaux,