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Strykker@programming.dev ⁨7⁩ ⁨months⁩ ago

Guess what, Canada sets the freezer at -15 Celsius. The USDA just chose 0F because it’s good enough and a nice easy to remember number, there is nothing special about it.

Same with all your other numbers, your just using whatever the closest even F value is that’s easy to remember there’s nothing special about any of them and we have equivalents in Celsius

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Sludgeyy@lemmy.world ⁨7⁩ ⁨months⁩ ago

your freezer at -18 °C (0 °F) or lower. This will keep your food out of the temperature danger zone between 4 °C (40 °F) to 60 °C (140 °F) where bacteria can grow quickly.

According to Canada.ca

Every 2 F is basically 1 C. You have more whole numbers with F.

Like -15°C is 5°F

6°F is -14.4444°C

-14°C is 6.8°F

So 5, 6, and 7°F are about equal to -15, -14.5, and -14°C.

And it’s not just a random number. You know how much more energy would be used if everyone kept their freezer just a couple degrees colder? It’s the optimum recommended temperature.

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- Allero@lemmy.today ⁨7⁩ ⁨months⁩ ago
  No it’s random and arbitrary. Those couple degrees improve shelf life and allow for better extermination of many organisms. There is no “golden temperature”, and so everyone flips it how they like it, and instead of what’s actually right this is often disctated by convenience.
  
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