I can open most things without a struggle but this pot of blueberry jam is beyond me. I've tried all the tricks I can think of, turned it upside down to break the vacuum, put it in hot water, used elastic bands, stabbed the lid repeatedly but it's not budging. It's welded on by the look of it. DH normally succeeds where I fail but he's had no joy either. He really persisted and despite going as purple as the jam from the effort he's given up.
He reckons I should go back and ask the customer service to open it! It's too far to bother though.