The trick that has never ever failed me with a stubborn jar lid is to stand it in the empty sink and pour hot water (kettle just off boil) slowly over the lid for 10 seconds. Let science do the work. Only jars with full contents though!
Tried that, didn't work
@Kat_Balou started
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The trick that has never ever failed me with a stubborn jar lid is to stand it in the empty sink and pour hot water (kettle just off boil) slowly over the lid for 10 seconds. Let science do the work. Only jars with full contents though!