"It smells good"

Before Collin eats something, he likes to put the food under his nose to smell it.  He mainly does this with candy and snacks and not his main meal (good thing because that could get messy).  I am not sure why he does this but he does do this regularly.  I asked him a few times why he does it and he said "because it smells good".  Well, I agree but does he need to do it EVERY time he eats it? Yep!  I guess it's a good thing that his sniffer works huh?