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My wife recently found some website recommending mixing 91% isopropyl alcohol, white vinegar, water, and corn starch and using it to wipe down countertops. This would be where we put our raw chicken and pork after washing them. I'm concerned that this won't kill the germs as well as harsh chemicals would, although I am as eager as she is to replace those hard chemicals. I need to know, from a chemist, whether isopropyl alcohol really will kill all those E. coli and Salmonella and whatever else the raw poultry is leaving behind.

As a bonus, can anyone recommend any better solutions that we can make on our own than the one mentioned above? Thanks!

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    $\begingroup$ Every biology lab I have been in so far that dealt with live bacteria used 70% ethanol solutions for wiping down. Not exactly the definition of a ‘harsh’ chemical ;) $\endgroup$ – Jan Nov 14 '15 at 13:20
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    $\begingroup$ see also cdc.gov/hicpac/Disinfection_Sterilization/… and cmr.asm.org/content/12/1/147.full $\endgroup$ – Loong Nov 14 '15 at 14:12
  • $\begingroup$ The corn starch is probably intended to be a thickener and may supply your most active bacterial culture medium, I would leave that out. High purity alcohol on its own should be pretty good, water and vinegar will dilute it though the vinegar action may assist with cleaning but may not make much difference to bacteria counts. $\endgroup$ – KalleMP Mar 7 '16 at 13:06

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