This type of baby food was not around when my daughters were little.
I didn't touch the stuff for the longest time, but they often had interesting combos of food so I picked a few up when we were packing for vacation. I figured it was easier to travel with than the glass jars.
I am now completely addicted to buying baby food this way. Primo doesn't eat much baby food any more, but this stuff is awesome for a day on the beach or for anytime you are away from the house for a long time. Just twist off the cap and dinner, lunch, breakfast or snack is served!