Maybe i am the only person who has ever met anyone who thinks they are somehow more righteous because they cook from scratch instead of mix. Somehow i doubt it, but if it isn't you then it isn't you. As with most things in life, i find it to be kind of amusing.
Edited because scrstch is not a word 
I'm facinated by what people eat and it has nothing to do with morals. And I completely understand why people outside the US are facinated with our array of convienience products. They don't have them. And I haven't seen anyone say they were superior to others because they didn't like the taste of powdered potatos on this board.
But with anything you are going to find someone who will use their views to make judgements about someone else.
Just like:
The person who voted in the last election fills superior to those who didn't.
The person who wactches PBS Jim Lehar vs Fox news channel
The person who drives a Prius vs a gas guzzler
The person who reads biographies vs Harlequin romances
The person who backpacks through the Patagonia vs the 10 day carribean cruiser
But one of the reasons I like this board is because I don't think people make automatic assumptions about others based on preferences or choices. I'd hate to see it get to the point poeple refrain from stating their likes and dislikes because they are afraid others will view them as passing moral judgement.