On 05/03/2020 19:25, Andy Burns wrote:
Roger Hayter wrote:

I am told of a recommendation for 3:2 but I really have no idea what the
evidence is.Â* 60-70% alcohol seems common for hand gels.

The WHO publishes a hand-gel "recipe"

https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf

Not to difficult to make.

I don't know what the ingredients cost but I think you could make quite
a bit of money making your own and flogging it on ebay.

--
Michael Chare