In 2001 Gruyère gained the Appellation d'Origine Contrôlée since then the production and the maturation is defined in the Swiss law and all Swiss Gruyere producer must follow these rules.
Gruyère gained the Appellation d'Origine Contrôlée. This was in 2001. Then the production is defined in the Swiss law. Then the maturation is defined in the Swiss law. All Swiss Gruyere producer must follow these rules.