In a wide vessel add cooked rice and water; mix well and set aside for overnight
The next day transfer the soaked rice and water to a colander, save the water for the vadam and transfer the rice to a mixie jar
Add salt, lemon juice, water, and green chilli and grind into a fine paste
Furthermore add coriander leaves, and grind well
Finally, add turmeric powder, and grind into a fine koozh
Keep parchment paper/ plastic sheet/ vinyl sheet ready for vadam
Take a ladle of koozh and add portions of the koozh on the paper. Leave space in-between the koozh
Finish the entire batch and let it get dry in the hot sun
It is an extremely sunny day after few hours (3 or 4 hours) you could easily flip the vadam
Flip gently if it is coming easily do it for the entire batch but if it is difficult to flip wait for the Vadam to dry further
Let the Vadam be in sun till the sunset. Keep the Vadam inside during the night
The next day again dry the Vadam and flip around the noon for even drying
Repeat this process till the Vadam is completely dry
Depending on the weather it takes 3 or 4 days for the Vadam to dry. On the last day dry the vadam on a baking tray or plate to prevent from vadam falling as dried vadam turns light
After the Vadam is completely dry store in an airtight container
Fry the Vadam in hot oil and flip for even cooking