In underground storage facilities, the temperature is more stable compared to above-ground storage due to the natural properties of the rock formations. The temperature remains between 8–10°C throughout the year, even during dry summers or harsh winters. This stability prevents excessive energy use in climate control systems. These systems are installed mainly as a safety measure against unexpected temperature fluctuations. In other words, underground storage ensures energy efficiency and reduces carbon footprint.
Additionally, the storage temperature for potatoes can vary depending on their intended use. Modern climate control systems are used to achieve and maintain these target temperatures. With the experience we have accumulated over the years, we have reduced storage losses to below 7%. We are world champions in potato storage!
Another advantage of underground storage is the natural humidity. Potatoes are about 80% water, and the tubers continue to respire from the moment they are harvested. During the storage period, respiration causes weight loss due to water loss. The natural humidity in underground storage prevents this water loss and reduces costs.
Finally, underground storage is dark. Sunlight causes the accumulation of solanine, a toxic substance in potatoes, which leads to greening.
