GaeaStar’s 3D-printed disposable clay cups are available in the US for the first time today, but only at Verve Coffee shops in San Francisco.

K-Cups range in size from 9 to 13 grams of coffee, some beans are ground more fine than others, and the variation between light and dark roasts generally involves a different brewing technique.

A barista at Zero Green told Bristol Live that the cups are made of wheat and barley. Tom Wren SWNS. The cup can hold hot and cold drinks and stay strong for as long as 40 minutes.