How does my water filter pitcher get ice in it?

Sometimes refrigerators get colder than usual and are able to freeze things a bit. It is obviously possible for this to happen, because it already did. Lol. And 32 is freezing level, by the way.

Do you have a thermometer in your refrigerator so you can see at what temperature it is? I think it should be kept below 40 degrees F (check on this). Maybe you need to turn the refrigerator’s thermostat down a bit. Also, the temperature can be different depending where in the refrigerator things are…

I’ve had items that were in the back of my fridge freeze in the past. Sometimes the temperature in the back is higher than in the front. Sometimes that is do to the fridge being frequently opened, causing it to run more often, making the back really cold to try to make up for the warmer temperature in the front from the door being opened so much. You can put a thermometer in the fridge for a bit to check for temperature differences or you can turn the temperature down some.

Where is the refrigerator? Seriously. I keep a refrigerator on my enclosed back porch, and at this time of the year I have to be sure that anything I keep in it can stand being frozen, because when the temperature goes far below freezing as it often does, then the contents of my fridge are going to freeze regardless of the nominal temperature setting I use.

On the other hand, when I started in construction I was amazed to find that contractors often used modified refrigerators to store opened containers of flux-coated weld rod, which has to be kept heated to avoid attracting atmospheric moisture. They essentially used the refrigerators as cheap, stand-up ovens.

Anyone?

Obviously the temperature inside your refrigerator is below 32°F / 0°C at some time, despite your assertion (?) to the contrary. We’ve attempted to give you some explanations of how that might be possible, but you seem to have rejected those.

If you have “magic ice” that forms at a higher temperature than 32°F, then you need to make the proof of that. Otherwise, your refrigerator temperature is lower (at least when and where the water pitcher is forming ice) than you think it is.

You were right. It was magic ice.