Freezers and coolers are fundamental appliances in both commercial and residential settings, serving to preserve food and beverages by maintaining them at specific temperatures. Freezers operate at temperatures below 0°C, effectively storing perishable goods for extended periods by halting bacterial growth. Coolers, or refrigerators, keep items cool but not frozen, typically between 2°C and 8°C, ideal for fresh food and drink storage. Together, they play a crucial role in food safety and storage, accommodating a wide range of perishable products and extending their shelf life.