I was reading the handout the pediatrician gave me about feeding your baby solids and I came across this warning on certain foods you should not home-prepare for baby. It says not to make the following vegetables at home:
The reason is because these vegetables contain large amounts of nitrates (chemicals that can cause an usual type of anemia in infants) Baby food companies are aware of this problem and screen the produce for nitrates before preparing and selling the food. If you do decide to prepare these vegetables at home, it is best to serve them fresh, do not store. Storage of these foods increase the amount of nitrates.
Although the handout from the doctor states the above information, I have found articles that say the risk of your baby getting nitrate poisoning is very unlikely. Check out this website for more information.
Hopefully you will find this information useful when making baby food at home.