Question

Why cooking vessels are colored black at the bottom?

Answer 1

Absorption of Heat:

1. The bottoms of the jars are painted black so that when they are exposed to heat, they absorb it quickly because black is an excellent conductor of heat.
2. This speeds up the cooking process. The upper half of the utensil is kept shiny to ensure that the utensil loses as little heat as possible when cooking.
3. The fact that black objects absorb all wavelengths and are the hottest conceivable color contributes to their ability to transmit heat quicker.