Originally Posted by Sewbeeit2
Just because they "look good " is not what matters. How the pressure treated the rubber in the canning process is the important factor....i would always ....Always use new lids please.
I was told as a little girl, NEVER reuse the "flat" lids when canning with the rubber seal, once that seal is used it will not seal properly again. They are fairly inexpensive and it is not worth the chance of having the food you can go bad.