In India, our ancestors used to cook food in clay pots. And because of the change in the modern times, clay pots are now been replaced by metals like steel, aluminium and non-stick pans. Have you ever wonder why did people in olden days use clay pots for cooking food? Is there any kind of scientific reason behind this? Now it's time to figure it out what is the reason behind this and should we again start using clay pots by replacing aluminium, non-stick cookware etc. Back in the olden...