Requirements
The legal requirements for the different AOCs are as follows.
| AOC | Allowed base yield (hectoliter per hectare) |
Minimum sugar content of the must (grams per liter) |
Minimum alcohol content | Minimum residual sugar in the wine (grams per liter) |
Other requirements |
|---|---|---|---|---|---|
| Coteaux du Layon | 35 hl/ha | 221 g/l | 11% | 34 g/l | |
| Coteaux du Layon + a village name | 30 hl/ha | 238 g/l | 12% | 34 g/l | |
| any of the above + the designation Sélection de grains nobles | 294 g/l | No chaptalization allowed, must prove in a test that it has SGN character | |||
| Bonnezeaux | 25 hl/ha | 238 g/l | 12% | 34 g/l | Grapes must be overripe, and may be affected by noble rot or not |
| Chaume | 25 hl/ha | 272 g/l | 12% | 68 g/l | Grapes must be passerillé or affected by noble rot. If the must has a minimum sugar content of 323 g/l and no chaptalization is used, only 11% alcohol is required |
| Quarts de Chaume | 25 hl/ha | 238 g/l | 12% | 34 g/l | Grapes must be overripe, and may be affected by noble rot or not |
Read more about this topic: Coteaux Du Layon