Even after a power outage or shutdown, ice cream machines cease cooling, but their excellent insulation and cold storage structure allow them to maintain a low temperature for a certain period, typically 2-6 hours, with the exact duration influenced by various factors.
1. Factors Affecting Heat Preservation Time:
● Machine Model Differences: Compressor-type machines have stronger heat preservation performance because their refrigerant system has a larger cold storage capacity, resulting in slower cooling after a power outage; semiconductor-type machines have shorter heat preservation times.
● Ambient Temperature: The higher the ambient temperature, the faster the cold loss. At 30℃, the heat preservation time may be shortened to less than 2 hours; while at room temperature around 20℃, it can reach 4-6 hours.
● Loading Volume and Material State: When the machine is full and contains ingredients with high specific heat capacity (such as cream or milk), the thermal inertia is high, the temperature rise more slowly, and the heat preservation time is longer.
● Cabinet Structure and Sealing: Models featuring high-density polyurethane foam and double-layered vacuum glass doors offer significantly superior insulation.
2. Practical Application Scenarios:
● Short-term power outages or overnight shutdowns: Can safely maintain operation for several hours without affecting the next day's use;
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