this post was submitted on 20 Nov 2025
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0°F is the warmest allowed temperature for freezing food in the service industry. We measure with Celsius here so I only recently found out that -18°C = -0.4°F which is just about 0°F. I was looking at some cases of food we store in the freezer and noticed it said “store at -18°C (0°F) or colder”. I doubt that’s the actual reason for 0°F being what it is, but it is a practical use case for that temperature.