Yes! Foam can coolers work by using the insulating properties of foam to slow down heat transfer. The foam material is filled with tiny air pockets, and since air is a poor conductor of heat, it creates a barrier that reduces the flow of warmth from the surrounding environment to the can. This means the heat from your hand, the air, or even sunlight doesn’t reach the can as quickly, keeping your drink colder for longer.
While foam koozies are lightweight and affordable, they are best suited for short-term use and casual settings, as they offer basic insulation compared to more advanced materials like neoprene or stainless steel.