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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Sun‑drying preserves tomatoes by evaporating moisture under solar heat, lowering water activity to suppress microbial growth.
Origin: Mediterranean cultures (Southern Italy, Spain, Greece) (Traditional (pre‑industrial)) — Mediterranean
See full technique reference →The process relies on solar radiation to drive water evaporation, reducing the tomato’s water activity to ≤0.6. Concurrently, UV‑B photons induce photochemical isomerisation of all‑trans lycopene to cis forms, enhancing its bio‑accessibility. The combined thermal and photochemical effects produce a firm, sweet‑savory product with increased antioxidant potential.
Primary Reaction
dehydration (water evaporation) + photochemical isomerisation of lycopene
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