So I've made kraut in the past and know how to do it and as it turns out I like kraut, a little on a reuben, but a bucket of kraut is enough to last me forever. My wife tried to make some in the kitchen a few years ago and as soon as it started to ferment she threw it out due to the smell of fermentation. While I was gone to Baltimore she decided it was time to make kraut again so she got some lids and airlocks for jars and made two small batches. When I got home she was very proud of herself until I divulged the airlock does not filter out the aromas, it simply keeps things from getting in. I wish I had a video of her reaction.
Anyway, I set her up a dorm fridge on a temp controller in the garage to ferment her kraut, but thought I would share the story.