It’s not that it’s relevant, but some housewives still use this folk remedy.
At one time this manipulation allowed to solve a number of problems and therefore was popular. However, by modern standards it is rather a relic, but very interesting.
In the old days, when people preferred to stock up on sunflower oil for future use, salt allowed them to avoid the main problem.
The so-called “live” oil can become bitter over time, and it was stocked up in large quantities and not always stored in the refrigerator.
It is no longer known who exactly came up with the idea of adding salt to butter, but Soviet housewives noticed that such a product could be stored longer.
At the same time, sunflower oil did not lose any of its beneficial properties and did not become bitter.
As you know, salt is the most accessible and natural preservative.
Sunflower oil, which was not always stored in an airtight container, began to spoil due to contact with air.
The same thing could happen if the oil was stored in a container made of the wrong material.
Today there is no need to make large stocks of this product.
In addition, modern packaging allows you to store products for a long time and even without a refrigerator.
Therefore, the life hack with salt has lost its usefulness.