Walk-in coolers maintain temperatures above 32°F, typically between 35-38°F, making them perfect for fresh produce, dairy products, and prepared foods that need refrigeration but not freezing. They’re what most restaurants use for daily ingredient storage.Walk-in freezers operate well below zero, usually around 0°F to -10°F, and are designed for long-term storage of frozen foods, ice cream, and bulk ingredients. They require more insulation, more powerful compressors, and specialized defrost systems to handle ice buildup.The construction differences are significant too. Freezers need thicker insulated panels, heated door frames to prevent freeze-shut issues, and more robust refrigeration systems. This is why freezer installations typically cost more than cooler installations, but both serve essential roles in commercial food operations.