Quoting CLC:" I make my own baby food. I cook the veggies and add a little water and run the ought the food processor. ... [snip!] ... worth of baby food in like 3 hours. I wash the baby food jars in the dishwasher and reuse them and put them in the freezer."
that's not a good idea.
Can I use glass jars for freezing homemade baby food? Can I use Gerber/Beechnut glass jars?
Glass that is not specifically manufactured for freezing has the unfortunate ability to crack, leave behind tiny, microscopic shards and fragments and also is prone to bursting. Baby food jars are not manufactured for freezing or for extreme heating. BALL, makers of home canning products, manufactures 4 ounce jars specifically for freezing as do other manufactures.
Many people do freeze in baby food jars but I do not advocate this whatsoever. After all, you're making baby's food because you want the best nutrition and health for your little one; why take a risk by freezing in jars? There are glass jars on the market that are specifically manufactured for freezing and those jars should pose no hazards at all.
Gerber containers do not have any specific markings or labeling to indicate that they are good for either temperature extremes. I have emailed Gerber and they have said that they do not recommend using their containers for storage at either temperature extremes such as freezing or extreme heat (microwaving). Feel free to Gerber as they were very quick with their reply to us. I do not advocate freezing foods in any container that is not specifically labeled for freezing.
There are certain "grades" of plastics that are specifically manufactured to withstand high temperatures and/or freezing. You may look on the bottom of the containers for the plastic symbol and then look the symbol up here at American Plastics Council
. Please note that these codes do not necessarily mean that the container you are using is 100% safe for heating or freezing; the codes will give you a baseline to help with your decision.