Anas bin Malik said: Abu Talhah asked the prophet ﷺ about the orphans who had inherited wine. He replied: Pour it out. He asked: May I not make vinegar of it ? He replied: No.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
Benefit: To keep and store alcohol with the intention that it will turn into vinegar is haram (forbidden).
However, if ready-made vinegar is obtained from somewhere, that is a different matter and it is permissible.
Because it has been acquired in the form of vinegar itself.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 3675