Doesn't take but an hour or less to cook a steak to a certain temp, but you can keep at that temp in the bath for another 4 to six hours without it ever over cooking.How do restaurants serve steaks using this method if it takes multiple hours to prepare?
I hate to think a microwave is involved.
Cook 100 steaks in one machine for one hour, take one steak out when it's ordered, sear it in 2 minutes and serve it.
Rinse repeat, IOW enough steaks cooked in one hour to serve for the next four hours.
That's why restaurants use sous vide.