How do lids seal on canning jars?

Answer Canning lids are sealed by a strong vacuum inside the jar. During processing, heat causes the jar's contents to expand and push out the air. As the jar cools, the contents contract and a vacuum for... Read More »

Top Q&A For: How do lids seal on canning jars

How long do Ball canning lids last?

Ball canning jar lids consist of the metal lid and the metal ring that screws around the mouth of the jar. You can sterilize and re-use the metal rings, but a sealing compound on the metal lids act... Read More »

Can you freeze canning jars?

Yes, you can freeze canning jars. According to the National Center for Home Food Preservation, your best option is wide mouth dual purpose jars, which are suitable for canning and freezing. However... Read More »

Decorating Ideas for Canning Jars?

You could put all those extra canning jars left over after canning this year's fruits and vegetables in storage to collect dust until next year. Or, instead of waiting to use those jars until next ... Read More »

Who makes inexpensive canning jars?

Ball canning jars are inexpensive and readily available. The cost depends on the jar size but ranges from approximately $7.99 to $10.99 for a case of 12 jars. This averages to 91 cents per jar or l... Read More »