Buzz
Fruits, vegetables, and meats can be preserved for extended periods when properly prepared and canned. Sterilizing bottles and jars before canning is essential to prevent bacterial contamination and ensure food safety. Follow the guidelines in this article to learn how to sterilize bottles and jars according to the standards set by the U.S. Department of Agriculture.
Steps
Sterilizing Bottles and Jars
Prepare glass jars suitable for your intended use. Choose jars specifically designed for food storage. Opt for heat-resistant glass that is free from cracks or chips. Ensure the jars have tightly fitting lids.
- Use jars with flat lids, screw bands, and reusable sealing rings. While the rings can be reused, you will need new lids each time.
- For bottles, select those with high-quality rubber seals.
Wash the jars and bottles. Use hot water and dish soap to thoroughly clean the jars and bottles you intend to sterilize. Ensure they are free from food particles or residue. Wash the lids as well, making sure they are completely clean.
Place the jars and bottles in a deep pot. Stand the jars and lids upright inside the pot. Arrange the lids around the jars. Fill the pot with water until the jars are submerged by about 2.5 cm.
Boil the jars and bottles. Bring the water to a full boil. If you are at an altitude below 300 meters, boil the jars for about 10 minutes. For every additional 300 meters in altitude, add an extra minute to the boiling time.
Use tongs to remove the jars and bottles from the water. Take out each jar and lid, placing them on a clean paper towel to dry. Avoid letting the sterilized jars come into contact with anything other than the clean paper towel.
Fill the jars with food and seal them
Fill the jars with the food you want to preserve. Do this while both the jars and the food are still warm. Jars may crack if you pour warm food into cold jars.
- Pour the food into the jars, leaving about 1 cm of space at the top.
- Wipe the rims of the jars clean to ensure a proper seal.
Seal the jars. Screw the lids onto the jars following the threads and ensure they are tightly closed.
Place the jars on a rack inside a deep pot. The rack prevents the jars from touching the bottom of the pot, ensuring even heating and proper sealing. Use tongs to carefully place the jars on the rack.
Boil the jars. Fill the pot with water until the jars are submerged by about 5 cm. Boil the jars for approximately 10 minutes, then remove them with tongs and place them on a paper towel.
- Wait about 24 hours for them to cool completely before refrigerating.
- Check the lids. A slight indentation indicates they are properly sealed. If any jar lids are not indented, open them and consume the contents instead of refrigerating.
Tips
- You can also use sterilizing solutions available at pharmacies to sterilize jars and bottles.
- Washing jars and bottles in a dishwasher with hot water effectively removes food particles. However, you must still sterilize them using boiling water or other sterilization methods mentioned in this article, as dishwashers do not reach the necessary temperature to kill harmful bacteria.
