Metalchemy’s Fresh4Longer packaging technology uses our natural patented colloidal silver as its active antimicrobial ingredient to extend the freshness and shelf life of food products. By integrating this bioactive coating into paper, plastic, and bioplastic packaging materials, Fresh4Longer helps exporters and producers reduce waste, preserve quality, and lower logistics costs across global supply chains. The same antimicrobial technology is being developed for floral preservation and agri-tech applications, including plant enhancement solutions that promote faster growth and higher crop yields. Based in London, Metalchemy is expanding internationally through a USDA grant awarded this year to scale its sustainable shelf-life and crop protection innovations worldwide.