Probably a stupid question, but will we ever have something like a microwave to make things cold? Is there a reason this can't exist?
(lemmy.dbzer0.com)
Blast freezer. It's about as close as we'll get any time soon. Not an affiliate or anything, just googled and found this bugger (about microwave sized).
https://www.nisbets.co.uk/polar-countertop-blast-chiller/ck640