Mold tends to appear in a favorable environment, that is, not only in sweet jam, but even in salted preserves.
A thick mold cap appears on pickles and tomato paste, even if the covered jar is kept in the refrigerator. Here's what experienced housewives do in this case.
They say that in this case the pickles will last for weeks.
Despite the fact that preservatives such as salt, vinegar or citric acid are used in canning, mold appears after opening the can.
The reason is that the contents are sometimes scooped up with a dirty spoon or people “dive” into the jar for the cucumber with their hands.
You don't need much here - after a few days, the moldy canned food can be thrown away.
The best thing to do is to stop poking into the jar with your hands and unwashed spoons.
And you also need to use one trick.
You will need a couple of pieces of gauze, with a diameter larger than the neck of a standard jar.
Apply a layer of mustard to one layer of gauze, cover with a second layer, and place it at the top of the jar so that the gauze hangs inside, but its edges can be pressed down with the lid.
That's it. Close the vessel with a lid and put the structure in the refrigerator.
The pickles are guaranteed to last for another 1-2 weeks.