Beverage koozies are a ubiquitous sight at barbecues, picnics, and outdoor events. Known for their simple, functional design, these insulating sleeves keep our drinks cold and our hands warm, providing a buffer between the ambient temperature and the beverage inside.
The science behind how koozies work is as intriguing as it is practical, and it's leading to a rising trend in the market - the insulated steel koozie.