Follow these canning hints to prevent your lids from sticking together after being boiled.
This home-canning tip has saved me many frustrating moments when I am knee-deep canning tomatoes, corn, carrots and venison. To prevent the lids from sticking together after they've been boiled — and to keep from burning my fingers when I'm in a hurry and trying to pry the lids apart — layer them in the pan that I heat them in, placing one lid rubber side up, and the next lid rubber side down. Instead of all sliding together in one lump, the lids slide apart and are easily picked up with tongs and laced on the rim of the jar.
— Margaret Novak, Kennan, Wisconsin