The NHS choices website allows "comments" 
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So the page I've linked to someone is querying part of the advice and claiming that it must be wrong.
I have tried to comment but my post has not appeared. I have also reported the comment so that hopefully it will be removed.
The idea of being able to send a comment to the website is a good idea so they can udate/amend information - but just so random inaccurate info can sit there?
The page is on the preparation of formula and mentions boiling water and leaving it for 30 mins and the comment says surely that should say 3 mins.
Nope it's 30 mins so the water is 70 degrees C which is a temp which will kill bacteria in the unsterile formula powder.
Hotter than this may cause a loss of nutrients.