Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Burning cup / Hot drink cup

Burning cup
Burning cup

Burning cup is a product which helps prevent a beverage from cooling down due to heat release to outside.
The sodium acetate contained in the inside of this cup can keep the heat of beverage. This liquid solution
breaks the balance of liquid state by even tiny impact and hardens it solid, and at this time generates heat momentarily. This heat allows the temperature of the beverage in the cup to be kept for a period of time consistently, the heat contained in the beverage is delivered again to the outside sodium acetate, and makes the solid into liquid, so permanent use is practicable.


Royal College of Art

Royal College of Art
London, United Kingdom

Ryan Jongwoo Choi,
Royal College of art