Refrigeration insulation

[blue otter]

What is the experience for adding spray foam to refrigerators and freezers to increase insulation? On the one hand I need better insulation in really hard to get to spaces and could increase my insulation by using “insulation in a can spray” .... on the other hand I’m concerned about spraying it liberally in places I may later need to access for other reasons?

[mcerdos]

We used foam board to add insulation. Much better solution than spray for the concerns you state. Foam board is cheap and available at any hardware store. Use duck tape to join corners etc.