Nicole Stjernsward developed Kaiku as a system that uses vaporization technology to create natural pigments from plants—including kitchen staples like Avocados, beetroots, pomegranates, citrus fruits and onions. Once processed, the pigments can be used as the raw material for dyes, inks and paints, especially as an alternative to artificial pigments that are commonly toxic. The system involves boiling the skins and peels of fruits and vegetables to produce a dye, which then passes through an atomizing nozzle and then a glass vacuum cleaner.
According to Stjernsward "Since many synthetic pigments today are toxic or made of ambiguous materials, color is typically considered a 'contamination' in the Circular Economy principles. I hope to change this paradigm."
Throughout history, brilliant pigments were derived from nature, making some much more precious and rare than others.