What is the science behind South Indians eating food on banana leaves?

The unpolished answer is that there is no science behind south Indians eating food on banana leaves, and this was absolutely founded on the accessibility and reasonableness. All logical reasons illustrated in different answers depend on counterfeit after contemplations and knowing the past.

Life for a larger part of south Indians of yesteryear was both country and peaceful, and pretty much every house in each town had numerous trees, including banana trees, in their patios. So it was just a question of accommodation to cut some banana leaves, (which in any case have no use dissimilar to different produces of the tree and hence a waste item) to utilize it for taking food and dispose of. The special reward is in the wake of eating food on it, these banana leaves can likewise be utilized to take care of one's dairy animals, goats and other family unit steers. No wastage. No extra costs. That's it in a nutshell.

While on the banana leaves we should likewise recall that the south Indians used to shred the bark of the tree to make yarn (called vaazhai naar in Tamil) and utilized it to string festoons of blossoms and furthermore use it as a rope to tie things up. One more utility for a waste item.

Individuals even a couple of ages back needed logical or financial headways yet discreetly caused it to up with their realistic and comfort. Just thing they didn't get down to business with high sounding and confused words like "Ideal usage of indigenously accessible assets in a shortage economy" in light of the fact that for them it is more inquiry of instinctive common sense than any canny speculating. Neighborhood accessibility and simple reasonableness guided the greater part of their inclinations/decisions. Maybe this is additionally the "science" behind most ascetic Buddhists eating meat or Bengali brahmins eating fish!