Awhile back there was a television special that talked about special deep freezers built for the seafood restaurant business. Check out their Cryo Freezers.....105 BELOW ZERO.....talk about ICE ICE BABY!!

https://www.ligfreezer.com/product/45c-blast-freezer-ultra-freezer/

here's one of these bad boys on ebay:

https://www.ebay.com/itm/334528492028