Coffee scraps help blueberries stay fresher, longer – UNSW SydneyBy upcycling spent coffee grounds from UNSW's Maze Café, the research offers a two-for-one environmental win: reducing food-industry waste while ...2025.12.08 By upcycling spent coffee grounds from UNSW's Maze Café, the research offers a two-for-one environmental win: reducing food-industry waste while ...