Maltz knows what a refrigerator is, but it's not a Klingon thing and he doesn't really understand why anyone would need one. What possible reason is there for making food cold? Or for keeping it around for days or weeks? He said that your suggestion (Soj bIrmoHmeH polwI' DeSwar) certainly describes the device, but he wouldn't call it that. He preferred simply DeSwar bIr.

(Marc Okrand to Lieven L. Litaer talking about the Hamletmachine, November 2019)