Pro tip for those who don't know: Try ordering your thin sliced rare beef on the side instead of in the bowl... that way, it comes to your table and you can dip the portion beef in the soup yourself, and get the perfect temperature to your tastes. Leave it up to them, and by the time it reaches your table it's almost always overdone.

Some places will charge you extra, but I've found most places to accommodate this request free of charge.