freshly prepared. However, the tiny opening shouldn’t automatically be described as a dedicated steam-release valve.
On many hot-drink lids, its main practical role is to help air move as you sip. Any effect on escaping vapor is secondary to the lid’s overall design.
If you’re drinking very hot coffee, the vent doesn’t mean the drink has cooled to a safe temperature. Take small, careful sips and allow the beverage to cool if necessary.
Other Everyday Objects With Surprisingly Useful Small Holes
The tiny coffee cup vent isn’t the only example
