Question: does vinegar kill e coli on romaine lettuce?
Answer: coli cocktails to undiluted vinegar or juice showed white vinegar was the most lethal. Treating inoculated lettuce with straight or diluted white vinegar (5% or 2.5% acetic acid) for 60 seconds resulted in a 2-3 Log10 reduction of Salmonella, E. coli, and coliforms.