Refrigerators should be kept between 35 and 38 degrees, and freezers at 0 degrees Fahrenheit.” Sounds pretty simple right? I got to say I wish I could find the article I was reading a few weeks back, but it took a look at the possibility of changing the recommended temperatures, especially for freezers.
http://thehtrc.com/2015/faq-ideal-freezer-refigerator-temperatures
Keep your freezer at zero degrees (0°) or below to maintain the quality of frozen foods. Most foods will maintain good quality longer if the freezer temperature is -10 to -20°F. At temperatures between 0 and 32°F, food deteriorates more rapidly. Fluctuating temperatures, such as those in self-defrosting freezers, also may damage food quality.
http://food.unl.edu/refrigerator-and-freezer-storage
Recently I ran across this tidbit “Raise the Freezer Temperature: As long as your freezer is below 32 degrees, your food will freeze.” Really? As many know, many like the FDA have always promote / mandate keeping your refrigerator at or below 40º and the freezer at 0º.
http://thehtrc.com/2015/faq-ideal-freezer-refigerator-temperatures
The temperature range in a Sub-Zero with an electronic control panel is 34° - 45°F (1° - 7°C) degrees in the refrigerator and -5° to 5°F (-20° to -15°C) degrees in the freezer.
https://www.subzero-wolf.com/assistance/answers/refrigerator-and-freezer-temperature-settings
Things to consider: The freezer. 1  One of the first items we must point out is that 32 degrees does not mean that something is frozen or will freeze.  The next item to point out is that saltwater freezes at a different temperature based on its salinity (aka sodium) level – most like NOAA simply state 28.4º.
http://thehtrc.com/2015/faq-ideal-freezer-refigerator-temperatures
Things to consider: The freezer. One of the first items we must point out is that 32 degrees does not mean that something is frozen or will freeze. While a BTU is what is required to heat (or cool one pound of water) that only applies before it’s phase changes.
http://thehtrc.com/2015/faq-ideal-freezer-refigerator-temperatures
If you would like softer scoopable ice cream consider bumping the temperature up to between 0 to 5º. As an FYI – Gellato is best between 0 to 18, Italian Ice between 10 to 18 with frozen custards coming in around 10 to 20.
http://thehtrc.com/2015/faq-ideal-freezer-refigerator-temperatures
1 Always allow 24 hours for unit to reach new temperature setting. 2  If the unit will not maintain set temperature, refer to Warm Refrigerator Troubleshooting or Warm Freezer Troubleshooting for more information.  For units running too cold, refer to Extremely Cold Temperature on Display.
https://www.subzero-wolf.com/assistance/answers/refrigerator-and-freezer-temperature-settings
1 Storing food above 45°F is not safe. 2  Always allow 24 hours for unit to reach new temperature setting.  If the unit will not maintain set temperature, refer to Warm Refrigerator Troubleshooting or Warm Freezer Troubleshooting for more information.
https://www.subzero-wolf.com/assistance/answers/refrigerator-and-freezer-temperature-settings
1 In units with an electronic control panel, the factory settings of 38°F (3°C) in a refrigerator and 00°F (-18°C) in a freezer are ideal food storage temperatures as they cover most foods.  Setting the temperature higher or lower than factory settings will cause the unit to run more or less, according to set temperature.
https://www.subzero-wolf.com/assistance/answers/refrigerator-and-freezer-temperature-settings
what should a refrigerator freezer temp be
A refrigerator, freezer temperature should be zero degrees. A refrigerator freezer temperature should be zero degrees.