How long will baby food [cubes] keep in the freezer & refrigerator?

• Freezer: 3-6 months (ideally use within 1-3 months)
• Refrigerator (fruits / veggies): 48 hours
• Refrigerator (meat, poultry, fish eggs): 24 hours

For optimal quality and nutrient retention, keep frozen baby food cubes in the freezer for a maximum of 3 months.
Baby food cubes are safe to remain in the freezer from 3 to 6 months. Using baby food cubes within 1 month to 3 months is really more prudent. Due to the amount of water crystals that tend to build up with baby food purees, and due to the fact that nutrients may leach/evaporate upon thawing because of the water crystals, it is more prudent to use your frozen baby foods cubes as soon as possible – 3 months of storage tops. We always recommend using within 1 month if at all possible.
Many authoritative guidelines will say that most fruits and veggies will keep from 8 to 12 months in the freezer. This is mostly true of foods that are frozen in their natural state. This is also assuming that the freezer remains at a constant sub-zero temperature. Storing foods in a deep freezer is best should you wish to keep frozen foods for that time frame.
Remember that when certain books give freezer time guidelines, they rely on the typical guidelines for fruits/veggies that have NOT been cooked and turned into purees.

How long with baby food cubes keep in the refrigerator?

In the refrigerator, it is recommended that fresh pureed homemade baby food be stored no longer than 48 hours (many food safety authorities say that 72 hour is fine.). This limit ensures that bacteria growth in the puree is kept to a minimum and that the food does not take on the “taste of the fridge”. This “rule” applies for veggies, fruits, meats etc.
If you do not plan to freeze your homemade baby food, I suggest that you make the puree on a day to day, or every other day, basis.
For example, one sweet potato may be baked and then you may freeze one half without pureeing it and then puree the other half. This method will help cut down “waste” and also

Can I safely use frozen vegetables or fruits to make baby food purees and refreeze them?

YES. You can refreeze frozen veggies & fruits. Using frozen fruits and vegetables is the second best option to using fresh foods. The process of flash-freezing (foods being frozen at a very low temperature and frozen very quickly) actually preserves and allows for optimal nutrient retention.
One of the most commonly asked question is “Can I safely use frozen vegetables or fruits to make baby food purees and refreeze them?”. There are no studies or research to show that refreezing is negative and/or may adversely affect health. The caveat is that you must cook the foods prior to refreezing them. Frozen vegetables and fruits are NOT COOKED prior to being frozen.
Picked at the peak of freshness, a vast majority of frozen veggies are flash frozen either right in the fields or in the warehouse close by. “Fresh” veggies may sit around in trucks and warehouses and criss-cross the country before it even makes it to your table.
Frozen veggies are NOT cooked when packaged and so they must be cooked prior to eating. Please be sure to read the label of your frozen veggie bags as a few brands of frozen veggies may be pre-cooked; you would not want to refreeze these.
The fact is, cooking foods deplete more nutrients than does freezing foods. Contrary to myth, freezing foods (fruits and vegetables in particular) does NOT deplete 100% of that food’s vitamins and minerals. The process of freezing, if kept at a constant 0 degree temp does not contribute to a TOTAL loss of nutrients – if it did, then the majority of the population would be malnourished as we rely on and eat a large amount of frozen foods.
If you ever forget what the “rule” is, remember this example : you can take out a roast that was frozen uncooked & raw, thaw it, cook it and then freeze the leftovers for another meal. Once you have thawed the leftovers, you should never re-freeze the leftover-leftovers.

(Source from: http://wholesomebabyfood.momtastic.com/freezepage.htm)