Jarred food and organic jarred food, have a very bad taste to them for one, however, the up side to jar food is that it is pesticide free. Making your own baby food is a very cheaper route to go and it taste so much better than food in a jar.
It is extremely important, however, to make the home made baby food from organic fruits and vegetables. When they progress to dairy and meat, make sure that these products are organic, these both contain pesticides as well.
In conclusion, it is always the better choice to go with home made items for eating or around the house, and non-toxic cleaners so that the child doesn't come into contact with any harsh chemicals.