Ripple wall cups are a popular choice for serving hot beverages because of their excellent built-in insulation. Unlike single-wall or even some double-wall cups, ripple wall cups are designed with a unique exterior texture that helps keep heat in the cup—and away from your hands.
Here’s how ripple wall cups improve heat insulation:
Ripple wall cups typically have three layers: an inner paperboard layer that holds the liquid, a middle insulating layer, and an outer rippled (corrugated) sleeve-like wall. This structure creates air pockets that act as a thermal barrier, slowing down the transfer of heat from the liquid inside to the outside surface.
The ripples on the outside surface reduce the direct contact between the hand and the heated cup. This design improves airflow and helps disperse heat more evenly, keeping the cup cooler to the touch without needing a separate sleeve.
The textured exterior also makes ripple wall cups easier to hold, even when the contents are very hot. The added grip not only prevents slipping but also enhances user comfort during extended handling.
Because ripple wall cups insulate so effectively, they often eliminate the need for an extra sleeve. This reduces packaging costs, waste, and simplifies service.
