You have to keep each in a separate spray bottle and then spray both, one after the other."In tests performed at Virginia Polytechnic Institute and State University, combining the 2 mists eliminated virtually all Salmonella, E. coli bacteria or Shigella on heavily contaminated foods and surfaces when used in this manner, making this spray combination more effective at destroying these potentially deadly bacteria than any commercially available kitchen cleaner or chlorine bleach. .
It doesn't make a difference which one you use first - you can spray either with the hydrogen peroxide followed by the vinegar, or with the vinegar and then the hydrogen peroxide. When cleaning fruits or vegetables, simply spray them well first with both the vinegar and the hydrogen peroxide, and then rinse them off with tap water. Neither is toxic to you even if a small amount were to remain on the produce. Keep a spray bottle of each of these on your kitchen counter and feel very good about the sanitizing and cleaning they do.