What germs does vinegar not kill?

The Limits of Vinegar as a Disinfectant

Many people reach for vinegar as a natural, all-purpose cleaner around the house. While it is great for cutting through grease and removing hard water spots, it is important to know what it cannot do. Even when used undiluted, vinegar does not qualify as an EPA-registered disinfectant.

Specifically, vinegar fails to kill viruses sufficiently and does not reliably eliminate dangerous bacteria such as Staph and MRSA. If you are cleaning surfaces to prevent the spread of illness or tackling high-risk areas, a certified disinfectant is always the safer and more effective choice.