Over the last year, the design team at Mill has logged hundreds of hours in commercial kitchens studying one of the least visible parts of restaurant operations: what happens to the trash. The startup, which has raised more than $232 million since launching in 2020, is known for making a bin for home kitchens that dries and shrinks food waste. But companies like Whole Foods soon started asking for a version of their own. Of the 74 million tons of food that’s thrown out each year in the U.S., aro