One of the main reasons for the rapid spoilage of home-made products is the incorrect use of vinegar during preservation.
We will tell you which vinegar is strictly forbidden to use for preservation.
For preservation, you must use 9% white vinegar.
Vinegar with an acidity of 5-6% will also work, but 4% will not. Such preparations will not be stored.
If you have prepared the preparations with 4% vinegar, you need to put them in the refrigerator and try to eat them as quickly as possible.
By the way, vinegar can be replaced with citric acid. A teaspoon of citric acid is enough for a three-liter jar.
You can also use freshly squeezed lemon juice. Squeeze half a lemon into a liter jar.