Bringing a big photo of soybean oil and whole eggs to your feed
If I had to guess, it’s because the back/top of the fridge is more prone to freezing.
This is it. The door is warmer than the back and the mayo will separate if frozen
Also easier/more convenient to locate.
Honestly all can do this based upon where the colder air enters which in most cases is the top and back of the fridge. Be it when cost is not a factor cold spots can be reduced but there will always be cold spots. Being in the door means that it will be less likely to freeze and if freezing does occur, being in the door will be the first to thaw or warm.
Mayo is basically just Oil, Eggs, and Vinegar or Citric Acid.
If you put it in the back of the fridge, it’s likely to freeze and separate into a nasty dissolution of the emulsion of the ingredients. It’s not pretty.
I 100% thought this was vaseline at first before reading the whole title. lol
The door is the warmest part of the fridge and I would guess this has something to do with the temperature of an average fridge being a bit too cold and producing a less favorable texture so the manufacturer wants you to have the best experience and tells you to put it on the door. Either that or something else probably related to you enjoying it more or using it more.
Opening the door regularly helps agitate and keep the mayonaise from overly congealing.
