Clean the refrigerator door gaskets with warm soapy water and a soft cloth.
How to fix refrigerator door hinges.
The refrigerator door lubricant within the hinge can be removed along with the crumbs or caked liquid that was cleaned out of the hinge.
You can follow the steps in this video to help you do this easy repair.
To realign the lower door adjust the middle hinge.
To realign the door just pry off the hinge cap and loosen the hinge screws.
Prepare to quell the squeal before you eradicate the squeak remove the refrigerator contents from the door compartments and shelves.
Then align the door with the top of the refrigerator.
Clean inside the folds of the accordion style gasket to get all of the grease dirt and grime from the surface.