Making own baby food REALLY cost effective... and healthier??

Gi

I just did the calculations. A jar of baby food is $0.60 and has 4 oz. A bag of frozen green beans is $1 and makes 8 oz. The difference between store-bought and homemade is $0.03 per oz. And looking at the jars, it says ingredients are just the vegetable and water.

So is making your own baby food really cost-effective and healthier?? I'm not really seeing that...