Cooling a Roast cooked in a Crockpot
Definitely cool off your roast first. Putting hot or warm food into your refrigerator a) shortens the life of your fridge because it has to work harder, and b) introduces heat into the fridge that can affect other items in the refrigerator. Shortening the usage date on milk is the most common. A third consideration has nothing to do with food but may impact your ability to purchase roasts in the future: your electricity usage. You're going to have to pay for every kilowatt-hour of electricity you waste on fridge-chilling food that is too hot.