Confusion with potato weighing Can you help?

[carlawhite]

Hi

This may seem a silly question,so apologies if its obvious to some....

I'm preparing my sunday lunch and last week i cooked my usual roaster's by cutting up the potatoes. par boiling them then spraying a little frylight and roasting till crispy. Then when dishing up i weighed up 150g to point as 3pp.

question is...is this correct? or should i be weighing the raw potato before it is even boiled?

thanks for anyones replies

 

[k4c3y]

hi carlawhite

i find it easier to weigh my potato raw 2pp per 100g as the weight changes once cooked

 

[carlawhite]

so i may have just eaten more than 3pp's worth