Is vinegar halal in Islam?

In a Nutshell: Vinegar is considered halal in Islam as it is made from fermented alcohol which becomes vinegar through a natural process of oxidation. The process of oxidation removes the intoxicating properties of alcohol and it becomes permissible to consume. It is important to note that if vinegar is made from wine, it may not be considered halal. Wine is explicitly forbidden in Islam, and vinegar made from wine would also be considered haram. Evidences There are numerous Hadiths in which the Prophet ﷺ has mentioned and praised vinegar. It has been narrated that the Prophet (saw) once asked one of his wives to give him some gravy. She responded saying that there was nothing besides vinegar which could serve as gravy. The Prophet (saw) asked her to give him the vinegar and started eating it with his food. He then said: “Vinegar is wonderful gravy! Vinegar is wonderful gravy!”. There is another narration in which Ibn Abbaas (ra) relates from Ummu Haani (ra) who said the Prophet (saw) came to our house and was very hungry. He asked me: ‘Do you have anything to eat?’ I replied: ‘I only have a piece of dry bread and I feel too embarrassed to present it to you.’ ‘Bring it!’ he said. I took the piece of bread, sprinkled some salt over it and presented it to Prophet. ‘Do you have any gravy?’ he asked. ‘I only have a little vinegar’ I replied. ‘Bring it!’ he responded. When I brought the vinegar, he poured some of it over the pieces of bread as gravy and started eating. When he was done, he praised Allah and said: ‘Vinegar is wonderful gravy! O, Ummu Haani! No-one will ever go hungry in a house that has vinegar.’” From the aforementioned Hadiths it has been established that vinegar is Halal. In fact, it is not only Halal, it has been called a source of blessings and an excellent gravy. Scholarly Opinion Classical Islamic scholars have discussed the issue of vinegar in Islamic dietary laws and provided opinions on its permissibility. Here are some classical scholarly quotes on the matter: Imam Al-Bukhari, in his book Sahih Al-Bukhari, states: "Vinegar is a condiment and it is permissible." Imam Al-Tirmidhi, in his book Jami' Al-Tirmidhi, states: "Vinegar is pure and it is permissible to use." Imam Ibn Majah, in his book Sunan Ibn Majah, states: "Vinegar is a pure substance and it is not haram." Imam Al-Nawawi, in his book Al-Majmu', states: "Vinegar is considered a pure substance and it is permissible to use it as a condiment." These classical scholars provide evidences from the Quran and Sunnah showing vinegar is considered pure and permissible in Islamic dietary laws. However, they also stress the importance of checking the source of the vinegar to ensure it is not made from wine or any other haram substances.