I knew a guy that would bring a steak sealed in a vac seal bag to the gym and leave it in the sauna while he worked out. One hour later he was done working out and it was ready to eat too. Not sure I can actually recommend it to others but the novelty was interesting till they nearly kicked him out of the gym.
replySounds a bit like using your dishwasher to cook your dinner - https://parallelplates.com/dishwashers-still-full-meals/
replyI won’t want to use my dishwasher as a sauna though /s