Bit difficult, they say boil a potatoe in it to absorb the heat, but I tried that once and didn't do much. You could add a yogurt , if it doesn't cool it, it will still a tasty addition.
potatoes take out salt not heat. You have to be careful to just part cook the spud in the whatever so you can lift it out before you serve the meal, leave it in and the salt will still be there.