I use the trays to pack eggs for restaurant kitchens. Chefs find them practical and sturdy as they stack cases of eggs in the cooler for easy access, and they can just chuck them in the dishwasher if they get dirty before I pick them up on the next delivery day. Doesn't take too long for the trays to pay for themselves vs non reusable pulp trays, which are no longer recycled in our area. Smaller carbon footprint, lower cost that I can pass on to wholesale customers, everybody is happy, haha!