I want to give them the benefit of the doubt and say perhaps it’s a deep freezer that is only opened occasionally, and I guess is pretty well sealed as long as it’s closed.
The kitchen appears to have one of those built-in fridges that matches the cabinets:
Maybe it’s for freezing the clothes after cleaning them in the washing machine to make sure they stay fresh and don’t go bad. Either that or freeze-drying.
jk