How to Sterilize Glass Milk Jars

Sterilization is key to food safety.

When preparing to use new glass milk jars, you may feel compelled to simply wash the jars in soapy water and continue with use. However, doing so would constitute a huge mistake that could prove hazardous to your health.



When preserving or storing food, it is important to first sterilize the jars in boiling water. Sterilization helps prevent the growth of bacteria that cause serious illness. Simply washing the jars by hand or in a dishwasher will not achieve the level of heat needed to rid your jars of these bacteria.

Things You'll Need

• Boiling water canner
• Tongs
• Oven mitts
• Large pot

Instructions

Boiling Water Canner Method

1. Place the jars and lids upright on the water canner rack. Pour water into the canner until the jars and canner are filled and the water sits an inch above the jars.

2. Boil the canner for 10 to 20 minutes. Remove the canner from the heat.

3. Use the tongs and oven mitts to carefully drain each jar and remove the lids. Use the jars and lids as planned.

Large Pot Method

1. Place the jars and lids in a large pot. Fill the pot with water until the water rises an inch above the jars.

2. Place the pot on the stove. Boil the jars and lids for 15 to 20 minutes.

3. Use the tongs and oven mitts to remove and empty the jars and lids one at a time. Use the jars and lids as planned.

Tips & Warnings

• Keep the jars and lids hot until ready to use.

References

• National Center for Home Food Preservation: Sterilization of Empty Jars
• University of Georgia: USDA Complete Guide to Home Canning