Why Do Cold Drinks “Sweat” on the Outside of the Glass? | RapidSmartFacts

When you pour a cold drink, tiny water drops appear on the outside of the

glass. as if it’s sweating. Where does that water actually come

from? The water isn’t leaking through the glass. It comes from

the air around the glass. Air always contains some water vapor, even when it

doesn’t feel humid. When the glass is cold, it chills the air touching its

surface. Cooler air can’t hold as much water vapor. Extra vapor condenses

into liquid droplets on the glass. This is the same process that forms dew on

grass in the morning. The colder the drink and the more humid the