After developing a proprietary technology for turning spent brewing grains into a food-safe flour called SuperGrain+, Daniel Kurzrock and Jordan Schwartz founded ReGrained. The company uses the flour in its line of branded snacks that includes nutrition bars and puffs. In this episode of Since Sliced Bread, Mr. Kurzrock shares the challenges they’ve faced not just creating ReGrained but also developing a supply chain that aims to close a food waste loop.