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Tim Foster gravatar image

Interesting discussion. For the practitioner, I would suggest that the question is what is safer than what people are using now and sustainable. So if one can jump to soap and water in the house, great. But if soap is expensive and people poor, then perhaps ash is the best one can do for now if what people are using now is nothing! Or put another way are the risks associated with using ash greater than using nothing at all. Informed judgement?