Caviar or « black pearl » is without doubt one of the finest symbols of gastronomic luxury, rare and exclusive. Since a few years, the overfishing of sturgeon has endangered the survival of the species. A Swiss company, ZwyerCaviar, a family business founded in 2007 by Alexander Zwyer and his sibilings and based in Appenzell, sells the world’s first ethical caviar produced thanks to breeding conditions respectful of sustainable development.