Archaeologists Discover Ancient Freeze-Dried Potatoes in Peru

Archaeologists in Peru have discovered freeze-dried potatoes, known as chuño, at the Tambo Viejo site in the Acarí Valley. This find dates back approximately 500 years to the Inca Empire and was published in the Journal of Field Archaeology. The potatoes were found in excellent condition, retaining their shape and color, according to Lidio Valdez, an archaeology professor at the University of Calgary who led the excavation. Valdez noted that the preservation of the potatoes is significant as it indicates the Inca transported food over long distances, utilizing high-elevation freeze-drying methods and state-controlled warehouses. The potatoes were stored underground in ceramic vessels to prevent waste. Valdez emphasized the effectiveness of freeze-drying for preserving potatoes, which typically have a high water content and do not last long in moist environments. The discovery contributes to the understanding of ancient food preservation techniques used by civilizations.