Read a thread about rinsing a thermos and clearing out residue and a comment referenced the 3 rinses in chemistry.
All us non-chemistry minded travel mug/bottle/thermos owning folks who’ve struggled with soapy tastes after washing would like to learn.
Thank you.
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No matter how “well” you do it, doing it in one rinse can only water it down by the amount of the contaminant that the water in that one rinse can absorb. If there’s 10g of contaminant and 1 litre of water, there is still going to be 10g of contaminant and 1 litre of water at the end. And that ratio – or worse – will also stay on the inside of the bottle with the water that stays behind, and the residue that wasn’t absorbed or poured away.
Doing it in three rinses, means that tiny ratio that’s left after the first rinse is then washed again, and the ratio drops even further, and then the ratio of THAT rinse’s residue is reduced once again with a third rinse. This means that it’s far less likely for any significant amount of contaminant to remain, even if you used the same amount of water, and what does remain would be so watered down it won’t affect the use of the container.
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