Onion peel


Made in

Biodegradable 228 Circular 215 Composite 97 Milk 6 Onion peel 3 Vinegar 15

Onion peel

Photos: Renuka Ramanujam


HUID is a project that aims to create an exemplary model of a local circular economy. Through combining waste streams and by-products, as well as creating a biodegradable material that can help to circumvent the issues surrounding petroleum based materials.

Onions are fairly ubiquitous around the world, their skins often destined for compost. The intervention of using such a common material prevents further plastic usage that can be implemented on a local level in many places, while only delaying the onion skin's journey to the compost pile for a short while.

By-products involved in the production of HUID can also be recycled back into a local community for other purposes. The water used to treat the skins before processing can be used as a textile dye for artisanal purposes, or as the base of a vegetable stock.

HUID is made with a natural adhesive that is also currently under development to be sourced from a waste stream. The material takes between two and four weeks to break down into the correct conditions.

Currently, applications for packaging are being developed, but the full scope of the material is still unknown. Qualities and colour ranges are still being developed.

Additional information

The onions are boiled and bound together with a casein based adhesive that renders them strong even under exposure to water. Offcuts or small pieces of skin that aren't big enough to be made into veneers are ground to become raw material for a different application.

Information submitted by the maker and edited by the Future Materials Bank.


Onion skins, milk, vinegar, bicarbonate of soda, water, tung oil