Run warm tap water under the cap for a few seconds to make opening easier. Spoon out the desired amount of food into a separate feeding dish. Do not feed the baby straight from a jar of baby food. Saliva on the spoon may contain bacteria. These bacteria will contaminate the rest of the food in the jar.
Re-cap the jar.
Store the re-sealed jar in the refrigerator. Use the contents within two to three days. If making homemade baby food, use a brush to clean areas around blender blades or food processor parts. Harmful bacteria may be present in any old food particles and they may contaminate other foods. Studies have shown that the food is unevenly heated.