custom cup options

Raw Materials

Stainless steel is a popular choice due to its durability and ability which can be made to double-walled structure with vacuum insulation technology to creates an airless space between two layers of stainless steel, providing exceptional thermal insulation.

Stainless steel 18-8 (outer and inner wall) or Stainless steel 18-1(outer wall only)

Copper shield

Introducing the Copper Shield: Revolutionizing Temperature Retention in the Coldest Water Bottle

The principle of stainless steel thermos cup insulation is to evacuate the air in the interlayer between the inner tank and the outer shell to form a vacuum state to achieve the function of keeping heat and cold. However, due to equipment and production operations during vacuuming, incomplete vacuuming happen sometimes. This is why a getter is added between the interlayers, but even with a getter, incomplete vacuum will still occur. then copper shield plays a role in ensuring thermal insulation. Copper conducts heat quickly and has good reflectivity. With copper shield, the heat conduction will be reduced then improve temperature retention, it is usually improve 15%.

Cost for extra copper shield: 0.15~0.25USD depends on the bottle size.

Small mouth opening

We understand the frustration of trying to drink icy cold water from a wide-mouthed bottle, only to have it spill or lose its chill quickly. That’s why we advise to design Coldest Water Bottle/Cup with a smaller mouth opening, specifically crafted to maximize insulation and preserve the temperature of your beverage for longer periods.

The small mouth opening on our Coldest Water Bottle serves multiple purposes. Firstly, it prevents unnecessary heat exchange with the surrounding environment, ensuring that your water stays refreshingly cold for hours on end. Secondly, it enables you to take controlled sips without worrying about spills or leaks, making it perfect for those on-the-go moments or intense workouts.

Specification of small mouth: 30~35mm OD wideth.

Double walled lid structure

Introducing the innovative double walled lid structure design for the coldest water bottle cup. With this advanced feature, your cold beverages will stay chilled for longer periods, ensuring a refreshing drink every time.

The double wall design of the lid acts as an insulator, effectively preventing heat transfer between the inside and outside of the water bottle. This means that even on hot summer days or during intense workouts, your drink will remain icy cold.

The double walls insulated lid usually made with two plastic, then join together with ultrasonic welding technology.
Want to know how to design and manufacture a better stainless steel vacuum flask, you can reach ECOWAY team for technique assistant.