I use jarred, but not gerber. They use plastic containers, bad for environment and can't microwave do to toxins released by the plastic. Gerber also made my daughter constipated, I don't know why. We use Earth's best organic and Organic baby, they are USDA certified organic and cost just as much, if just a few cents more, as other brands. And, they are in glass jars, environment and microwave friendly. Also, being USDA certified mans that the water they use in the purees also has to past testing for purity. Gerber could use plain old rain water to save money and you would never now.