Whats the difference betweeen Gerber 1st foods and 2nds foods?

no, you are correct in your thinking. The main differences are 1) bigger container, 2) different combo's of foods...watch out w/ that though...many contain foods babies shouldn't have until certain ages. Also watch out for the stage 2 baby "deserts"...babies don't need deserts! Those products sometimes contains eggs and milk and 3) Stage 2 is a bit thicker in some of the foods