I built a fermentation chamber out of an old dorm fridge, wood, and insulation. The problem I am having is condensation on the fridge cooling cools. The metal freezes up, then melts, then freezes up, melts, etc. There is no catch basin so the water generally falls on top of the buckets or onto towels I have put under the buckets. I left the last towels in to long and they had mold on them. Anyone have any suggestions? I am seriously thinking of just buying a chest freezer but I put some money and time into building this chamber.