All of Emmi cheeses are carefully aged in cellars and caves across Switzerland. Some of the best are selected for extended cave-aging in the famed Kaltbach Cave near Lucerne.

The Kaltbach Cave

Our Kaltbach cheeses are carefully crafted in the deep, cool Kaltbach Cave. Located in the Alpine Valley of Switzerland, the cave is a 22-million-year-old natural sandstone labyrinth with a small tranquil river running through. In fact, Kaltbach means “cold river” and it’s what allows for a constant humidity of 96 percent in the mineral-rich cave air. The enormous amount of cave-wall surface area helps regulate the aging atmosphere and promotes a stable setting for the cheese to ripen. The porous nature of the sandstone acts a give and take—it gives moisture when needed and absorbs moisture when there is too much. This natural process regulates the humidity, which is a crucial part of the texture and flavor development and what makes this cheese unlike any other in the world.