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:

iF SOCIAL IMPACT PRIZE
(free of charge)

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

Publish your project

Concave-convex Spoon / Spoon

Concave-convex Spoon

Have you ever been scalded when drinking? Concave-convex Spoon has solved this problem. According to the principle of expansion and contraction, the spoon will swell when the drinking temperature reaches a certain temperature. Thus, the spoon can’t hold soup and the risk of getting scalded decreases.

University

Zhejiang University

Zhejiang University
Hangzhou, China

Design

Zhejiang University

Zhejiang University
Hangzhou, China

Guan Hongyue; Zhu Pengfei; Xu Tianning; Wang Yiming