The less time the cereal takes to cook the more it is processed, so the fewer health benefits you get from it. The slow cooking oats are much healthier.

Just so you know. By the time you've bothered to spend several times more to buy little packets of pre-cooked, pre-chewed cereal to add hot water to, you've got less nutrition than that wallpaper paste. (Personally, I used to eat the school paste, which might have been what you're calling library paste, but that's where I encountered it. It was a gelatinous sweet white substance scooped out of a large container into bowls or old tuna cans or onto chunks of cardboard, as I recall. You'd be insane to actually USE that stuff in a library.)

SRS