Vac seal the meat. Double seal each end out of paranoia. Reheat in the bag in water at a bare simmer. You’ll lose none of the moisture like you would with most other methods of reheating.
I can concur that this method is pretty great but I'd stress the phrase "bare simmer". Otherwise you'll be enjoying some yummy plastic chemical carcinogen goodness with your prized protein. I know the esteemed JohnVee would agree...
