Re: Washing my car and bike - am I doing it right?
An interesting point re bubbles/froth, we have just trialled 'teeth tabs' - basically a tablet you chew and then use a toothbrush ( instead of using toothpaste) there is no froth at all. Consulted with our dentist and he said foam and froth are just added for the consumer feel good factor and serves no useful purpose all marketing ploys.
(We are trying to avoid unnecessary plastic waste, hence the switch)
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