Chillies are dried in the Sun to remove their moisture. Without moisture, microbes cannot grow, which keeps the chillies fresh and unspoiled for a long time, allowing them to be stored and used later.
Class 5 EVS Our Wondrous World Unit 2: Health and Well-being All Question Answer
Class 5 Our Wondrous World Chapter 3 The Mystery of Food NCERT solutions
Drying chillies in the Sun removes their moisture content. Microbes need moisture to survive and multiply, so when it is removed, their growth stops. This method keeps the chillies safe for months, prevents spoilage and allows them to be ground into chilli powder, which can be stored and used in cooking throughout the year without going bad.
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