I have a set of Calphalon Contemporary Stainless Steel cookware, and noticed that on Calphalon's website they say that this cookware is not refrigerator safe. For the past couple of months since I've had the cookware, I've been making soups/stews etc., and storing them inside the cookware within the refrigerator (after letting the food cool down a little bit).
Now I'm a little worried I might have damaged the cookware; I don't see any visible signs of damage, and it has never crossed my mind that it might not be good to put your cookware in the refrigerator for a couple days. Is this a big deal? Why is the cookware not refrigerator safe? If I continue to do this, would it shorten the life/damage the pots/pans?