All Hoshizaki storage ice bins have foamed-in-place polyurethane insulation throughout the bin‘s walls which is excellent for keeping ice frozen longer and prevents cubes from clumping together. All ice bins are equipped with an additional, easy to clean polyurethane bin liner to ensure ice stays sanitary. Patented H-Guard Plus Antimicrobial technology provides further sanitizing protection to both bin liners as well as ice scoops.