Afferden, Netherlands
Grassa B.V.
Grassa B.V. is a Dutch agri-tech company with a demo factory in Afferden Netherlands that biorefines grass and leafy biomass into protein concentrate sugars minerals and fibre for feed and human food.
Grassa was founded in 2014 and developed its grass-processing technology in collaboration with Wageningen University & Research. The company transforms freshly cut grass into high-value ingredients by separating it into protein-reduced fibre for animal feed and nutrient-rich juice for central refinement into functional ingredients. The process integrates directly into existing dairy farming operations using decentralized presses near farms that feed into a central refinery. Grassa operates a pilot press that began operation in 2024 and a demo press facility scheduled to open in spring 2026. The company targets EFSA approval for food ingredients by 2029 and plans to scale to full-scale refinery operations by 2030. No specific production certifications or technical specifications for separation methodologies are detailed on the website.
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Separation — Wet fractionation
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