FTC!

Alton

Whats the longest has someone Foiled  and Chested their Brisket???? 

Eggcelsior

4 hours.

MrCookingNurse

4-5ish, we were traveling, id be scared to go much longer.  It was still hot to pull when we got there.

GA_Dawgs

6 hours, still nice and hot once it was dinner time.

Tjcoley

6 hours for a brisket. Still hot and fall apart goodness.

Alton

I needed to do mine 8 and it was Great... I was a little nervous that it was too long but, wow I was wrong

EddieK76

I have done one about 8 hours and it was the best brisket I ever made....

Solson005

Here is Naked Whiz's Cooler Holding Times to give you a more scientific answer. 

bccomstock

I was just wondering about this last night.. I pulled a low and slow 4 lb pork butt around 11 PM (had cooked for 10.5 hours) and wrapped it in foil.. I let it set for an hour and then thought about FTC'ing it until this morning, but I was worried that might not work so well..