I cleaned the inside of my fridge today. It really needed a scrubbing! I used a rag and a vinegar/water/essential oil spray bottle. Any parts that could be removed just got washed with warm water I'm the sink. I composted yucky old food.
I defrosted and clean my freezer today. I unplugged it for an hour to let the ice thaw a bit and then flick it off with a butter knife. I used vinegar, a couple of rags, and a brush to clean it. There wasn’t much waste other than ice which I dumped in the yard.