This is what Norfolk Health Authority says about Perfect Prep:
Perfect Prep machines
Some people now use ‘Perfect Prep machines’. We advise you against using one of
these machines. This is because they deliver a small volume (‘shot’) of very hot water
and then add cool water to make up the rest of the feed. This is not sufficient to kill the
bacteria in formula milk. The Food Standards Agency recommends using cooled, boiled
water above 70 degrees centigrade to make up infant formula.
Do you agree with this please? Did you have any issues please?