Net volumes and weights: 50ml/80g/2.82oz Table salt, humidity approx. 0.5% Ideal for salt mills The salt of Uyuni, in southwestern Bolivia, rises to 3,700 meters above sea level and was once the largest salt lake in the world. During the rainy season, the salt layer, sometimes more than 15 meters thick, can be covered with up to one meter of water and then becomes one of the largest natural mirrors in the world. That's why salt is also called Mirror Salt. The Uyuni Salt Desert is one of the most fascinating regions on the planet, with brilliant daylight during the day, very cold nights and unforgettable sunrises and sunsets. Find our recipes and tips for use on our site.