Imperial graduate Nicole Stjernswärd has invented Kaiku, a system that turns plants into powdered paint pigments using vaporisation technology. Avocados, pomegranates, beetroots, lemons and onions are just some of the fruits and vegetables that can be placed into Kaiku and turned into the raw material for paints, inks and dyes. Skins and peels are boiled … Continue reading Kaiku turns fruit and vegetable waste into natural pigments