This material is a sturdy, biobased mixture made entirely from organic waste such as spent coffee grounds, casein – a milk protein and water. It is pressed into moulds and dried using a dehydrator, without any chemical additives. The result is a strong, natural sheet material, perfect for creating flat (2D) shapes.

Although it becomes very durable once dried, it’s difficult to work with in 3D as it tends to warp. That’s why it is mainly used to create flat sheets, which are then shaped using cookie cutters. This material is fully compostable and biodegradable, and is currently used in the From Waste to Wonder workshops, where children create playful and artistic objects, while learning about sustainability and circular design.