Description
Chuño is produced by natural freeze‑drying of potatoes at high altitude, where nightly sub‑zero temperatures form ice crystals that later sublimate during daytime sun exposure, drastically reducing moisture and concentrating sugars.
Technical
During the freeze‑dry cycle, intracellular water crystallizes, rupturing cell membranes and concentrating soluble sugars from starch hydrolysis. The resulting high sugar content imparts a characteristic sweet flavor and inhibits microbial growth. The process relies on physical disruption of cell structures and biochemical conversion of starch into glucose and fructose.
Science
Primary Reaction
sublimation of ice (freeze‑drying)
Sensory Profile
Aroma ()
earthynuttysweetdried potatowarmcaramelizedsmoky
Origin & History
Civilization