At the end of the page are my favorite products for making your own baby food.
You can find this brand at your local grocery store. For baby food, once you open the jar it is good for 48 hours IF the spoon that touches their mouth does NOT go into the jar. Make sure to pour what you will need to feed the baby into a bowl, so you can offer the jar of baby food again and not have to throw it away.
Making Baby Food