How cold should a deep freezer be?

Written by jake damon
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How cold should a deep freezer be?
Keeping your deep freezer the appropriate temperature will help properly store your food. (ice cube image by sheldon gardner from Fotolia.com)

Any freezer, especially a deep freezer, should never be above -15 degrees C. With a temperature greater than -15 degrees C, ice cream will begin to soften and food will not keep as long.

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Upper limit

Any freezer, especially a deep freezer, should never be above -15 degrees C (5 F). With a temperature greater than -15 degrees C (5 F), ice cream will begin to soften and food will not keep as long.

Ideal

Although -15 degrees C (5 F) is the maximum temperature you want for a home freezer, the preferred temperature for a deep freezer is subzero. At -15.0 or -23.3 degrees C (5 F or -10 F), food can actually be stored longer and the quality of frozen products like ice cream will be improved. Having a freezer thermometer will assure that your freezer is always set at the ideal.

Conclusion

Home freezers should be kept at -15 degrees C (5 F), but keep your deep freeze at -23 to -17.7 degrees C (-10 to 0 F) for optimum performance.

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