The peculiarity of this discovery is that the tubers found are chuno

The peculiarity of this discovery is that the tubers found are chuno—a special variety of potato produced in high-altitude areas of the Andes.

Consensus

Archaeologists discovered 500-year-old potato specimens in southern Peru.
The specimens are identified as chuno, a traditional freeze-dried potato product made by the Inca civilization.
Chuno was produced using natural sublimation drying through repeated freezing at night and sun drying during the day.
The find occurred at Tambo Viejo, an administrative center of the Inca Empire located in the Acarí Valley.
The location of Tambo Viejo is significantly lower than the high-altitude regions where chuno was produced, suggesting it was transported over long distances.
Organic materials like these are rarely preserved for centuries.

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