I have had a 3.1 cu. ft. mini fridge in use as a beer fridge for a while. I decided to convert it to a fermentation chamber for small 2.5g batches. The 3g Better Bottle fits the height no problem (with an airlock) but the door shelves get in the way of closing the door.
Time for some DIY modifications!
First step (after drinking all the beer that was left) was to defrost. The Rubbermaid lid and container catches all the water/ice. Left for about two hours and defrosting was complete.
Here is what I am trying to fit. Please note the little guy is not going in the mini fridge but he insisted on being in the picture.
The 3g Better Bottle is larger than you might think! 7.5"w X 23.5"h (with airlock)