In addition to keeping the temperature in your fridge at 40 f you can take additional steps to make sure your refrigerated foods stay as safe as.
Fridge and freezer temperatures celsius.
The temperature danger zone between 5 c and 60 c can potentially give rise to harmful bacteria.
Without a thermometer you can t know what those milestones translate to in real degrees.
At that temperature bacteria growth can be slowed down.
If food in the freezer has not dropped below 40 degrees or it still has ice crystals visible on the surface the food can be refrozen or cooked and eaten safely.
We do the same thing in the freezer experimenting until we get the freezer temperature to between 1 f and 1 f.
Maintaining the ideal fridge and freezer temperature is important.
But do you know what the best temperature is for it.
With a closed door a freezer can keep food at an adequate temperature for approximately 48 hours.
Between 0 c to 4 c.
The bottom line on fridge freezer temperatures.
They let you adjust the fridge and freezer temps on a scale of 1 to 5 with 5 being the warmest option.
Anything higher than that and you enter the danger zone of 4 c 40 f to 60 c 140 f where bacteria has the opportunity to explode.
The perfect temperature range for a freezer is at or slightly below 0 f and never more than 2 f.
Adjust the freezer settings as necessary to get the temperature in a safe range after making adjustments to either the freezer or refrigerator check the thermometer s temperature readout after five hours repeating the adjustment process until the reading is in the ideal range.
The recommended freezer temperature to keep your food safe is at or below 0 f 18 c but your freezer may need to be set higher or lower depending on its environment and other factors.
The fridge freezer wins the award for the hardest working kitchen appliance.
In the event of power loss keep the freezer door closed as much as possible.
They recommend you keep your fridge set to 4 c 40 f or colder and your freezer at 18 c 0 f or lower.
But you also don t want to turn the temperature on your fridge down so low that your fresh vegetables in the crisper freeze and are unusable.
Once you have your thermometer and a reading you can adjust the fridge temperature accordingly to keep the temps in the safe zone between 35 and 38 f.
The ideal fridge temperature is between 37 f 3 c and 40 f 5 c your freezer temperature should be at 0 f 18 c and it takes about 24 hours for your fridge to adjust to any changes you make.
More on refrigerators cr s refrigerator ratings buying guide.