PHAs (Polyhydroxyalkanoates) are a naturally occurring, biodegradable polyester first discovered in soil in 1926 by a Japanese scientist. Produced by microorganisms such as bacteria and algae through natural metabolic processes, PHAs are a true biomaterial designed by nature itself. What makes PHAs exceptional is their ability to break down in virtually any environment—whether in soil, freshwater, marine ecosystems, home and industrial compost, or even anaerobic conditions like landfills. Unlike traditional plastics, they leave behind no microplastics or toxic residues, making them a genuinely sustainable alternative. Our Fade Cups are made from Kaneka Green Planet™ PHBH, a high-performance PHA known for its strength, safety, and complete biodegradability.