Purity: Ruling on Additions to Grapes or Dates During Vinegar Production

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 195

There is no problem if the stalks of grapes or dates remain on them and vinegar is produced. Similarly, there is no problem in adding cucumber, carrot, aubergine, and suchlike even before it turns into vinegar unless it becomes an intoxicant before turning into vinegar.

-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)