The raw material for double-walled glass cups is high borosilicate glass, meeting food-grade and catering standards, and requires firing at temperatures exceeding 600 degrees Celsius.

The main production processes include hand-blowing and machine-blowing or pressing.

The general process of hand-blowing includes steps such as wire support, blowing the glass, opening the outer liner, sealing the inner liner, joining the seams, sealing the bottom, affixing the label, and annealing.

During manufacturing, vent holes are left at the bottom of the outer layer of the cup to allow gas to escape during blowing, preventing deformation and cracking. These vent holes are sealed after production. The interlayer is not a vacuum but contains gas; if it were a vacuum, the cup would produce a loud noise and shatter glass fragments when it breaks, potentially causing injury. Modern processes also include cutting, bottom pulling, pressing, sealing, inspection, and assembly.

This process typically requires 5 to 9 people working together.