Why is there a temp difference between Sous Vide Corned Beef and Pastrami? I bought a brisket and I corned the entire thing and I'm currently cold smoking a portion. What I don't understand though is why Corned Beef is Sous Vide at 60ºC for 48 hours, but Pastrami is Sous Vide at 65ºC for 48 hours? Why is one 5 degrees higher?