The higher the concentration of alcohol above 60%, the more it causes the proteins to form a crust that seals the pathogen off from being exposed to the alcohol at all. At least for bacteria, that's what they say. Viral capsids are smaller in diameter and thus more easily crust up according to .. surface area geometry but I only know about bacteria for sure, viruses I haven't looked up.
On Mar 23, 2020, at 3:08 PM, John Griessen <john@industromatic.com> wrote:
For instance:
1. Mild heating to sterilize nuts, grains from bulk bins.
2. Bleach water and soap recipe for soaking vegetables from the store before using.
3. UV LED exposure levels and times that kill covid-19
4. Would a recipe of IPA 91% + green tea to yield 70% IPA be effective on hard surfaces and hands?
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