Only hot water will kill the nasties

As usual I enjoyed reading The Weekend Sun and the article ‘Switch on to your bill and save' (page 30, July 14).

The last paragraph, which advises using cold water in the washing machine, makes me recall an interview Kim Hill had some years ago with the head honcho chemist of Colgate Palmolive in Lower Hutt. Extolling the virtues of the recently-marketed Cold Power washing powders, clean and bright were lauded but the bibful of truth emerged when asked about killing any bacteria on the washing. Our interviewee confirmed that you had to have hot water (61 degrees Celcius) to do that.

So bright and appearing clean use cold water: to kill the nasties as well you must use hot water.

A Baker, Morrinsville.

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