We can sip hot tea or milk faster from a saucer than a cup because the saucer’s larger surface area allows for faster evaporation, which in turn cools the liquid more rapidly. This makes the tea or milk cooler and more comfortable to drink sooner.
Here’s a more detailed explanation:
Surface Area:
Saucers have a much larger surface area than cups, especially when considering the area exposed to the air.
Evaporation:
When a liquid evaporates, it absorbs heat from its surroundings, causing the liquid to cool down.
Faster Cooling:
With a larger surface area, the rate of evaporation is increased, leading to faster cooling of the tea or milk.
Easier Sipping:
The faster cooling allows you to sip the tea or milk more quickly and comfortably without burning your tongue or mouth.