I have recently been making pickled beetroots and they mostly came out fine except for one jar which has failed to get a vacuum seal. Now I put it back in the pan and simmered the jar for a good half hour, but that didn't seem to change anything.
I then gave up on it and thought that I might as well just eat the beets in the upcoming week. And so I opened the jar and took out one slice and then put the jar in the fridge. To my surprise, after a few hours the jar has actually sealed itself, but I have no idea what to do with it.
Is it still safe to pickle it as normal after it has been opened once? Or should I keep it in the fridge and eat it soon?
