Removing Domestic fridge odor

[SpaceRat]

What is the best way to get rid of smells in a fridge? When I don't run this thing and fire it up for a trip, it SMELLS. Just to be clear, I clean it good at the end of each trip. But the smell is horrible, not sure what I could be doing differently.

Thank you

 

[Travis]

I use bleach wipes and leave open to air out after use.