Cyanotech's farm sits on the leeward coast of the Big Island of Hawaii, on volcanic rock within sight of the Pacific Ocean. The location is deliberate and irreplaceable: the Kona coast receives strong, consistent sunlight, experiences minimal rainfall (which dilutes production ponds and introduces contamination), and is washed by clean Pacific trade winds that keep ambient air quality among the best of any production site globally. These conditions produce spirulina with consistently high pigment content.
The production system is open raceway ponds — but Cyanotech's engineering is more sophisticated than standard open-pond operations. The 'BioSecure Zone' designation refers to integrated biosecurity measures: paddlewheel speeds are tuned for optimal gas exchange, contamination monitoring occurs multiple times daily, and the surrounding landscape is managed to minimise dust and debris introduction. Water is the Pacific Ocean nearby, filtered and treated before use.
The company's proprietary Ocean-Chill Drying process is the key quality differentiator from most spray-dried competitors. Standard spray drying uses hot air (150–200°C) which degrades phycocyanin significantly. Cyanotech's low-temperature process operates at substantially lower temperatures — specific parameters are proprietary — producing a dried product with higher phycocyanin retention, which explains why their Spirulina Pacifica product consistently tests above 14% phycocyanin.
As a publicly traded company (NASDAQ: CYAN), Cyanotech files quarterly and annual financial reports that provide unusual visibility into a spirulina operation's costs, supply chain, and production volumes. This financial transparency is unique in the industry and provides an additional layer of accountability that private companies cannot match.
Cyanotech also grows astaxanthin (under the BioAstin brand) in a dedicated section of the facility. The two crops share infrastructure but not ponds — the growing conditions are different. The dual-crop model provides revenue diversification that has helped the company survive price pressures in the spirulina market over 40 years.