TOTO
Yifei Zhang
Mycelium, food waste
2023

Yifei Zhang is a MASc student at the Royal College of Art and Imperial College London. She is a designer, machine lover and food programmer. Passionate about HCI and interdisciplinary collaboration, she thrives on making the intangible tangible. Not only with pixels but with a fascination for the tactile—programming everything from software to food. Her mission is to leverage emerging technologies to redefine our daily experiences and seeking simple solutions from daily life for tech challenges for sustainable innovation, she finds joy in the fusion of simplicity and sophistication.

Contact: 10017658@network.rca.ac.uk | yz12722@ic.ac.uk


A visionary concept revolutionizing the way we commemorate and remember life's moments. TOTO encourages a mindful approach to waste by transforming food remnants into mycelium, which, when matured, serves as a stamp. These biodegradable stamps imprint unique and aesthetically pleasing patterns, providing a visual and participatory means of documenting our lives. Offering unparalleled freedom of expression, TOTO minimizes reliance on traditional adhesive-based memorabilia. Unlike conventional methods that consume copious amounts of glue and plastic for each keepsake, TOTO stands out for its eco-friendliness and edibility.

This innovative solution not only reduces waste but also promotes a sustainable lifestyle by seamlessly integrating natural processes into our daily rituals. TOTO exemplifies the fusion of technology, nature, and personal expression, providing a tangible and eco-conscious way to leave our mark on the world.