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

Energy-free refrigerator / Food preservation barrel

Energy-free refrigerator

This is a low-cost storage solution for fresh food. It uses the traditional skills of ancient China to keep fruits and vegetables fresh, without consuming any energy.India is facing a huge food shortage due to the COVID-19 and locust disasters. Fresh food needs to be stored reasonably. However, residents in backward areas in India lack refrigerators. This container creates ideal low-temperature storage conditions .


Fujian University of Technology

Fujian University of Technology
Fuzhou City, Fujian Province, China

Zhenhua Zheng,
Fujian University of Technology

Hemin Huang,
Fujian University of Technology

Hongyu Xiang,
Fujian University of Technology