After the food is frozen, put the cubes in freezer bags. Seal tightly, label, and store up to one month. To serve, heat in a small dish or custard cup set in a pan of water. You do not need to heat the food too much. Use extreme caution if defrosting or heating in a microwave oven.
Microwaves can heat a food unevenly and form hot spots.
One spoonful may be cold, yet the next spoonful could burn your baby's mouth. Always stir the food well before feeding your baby. Most health and child care professionals recommend against using a microwave oven to warm baby food. Use fresh, frozen, or canned vegetables. Check canned and frozen labels to see that they are low-salt or unsalted.