Canning Jars

Kerr, Mason or Ball

Canning Jars come in many shapes, different brands, and several sizes.

Wide mouth jars have openings about 3 inches in diameter.

Narrow mouth or standard mouth jars are about 2 3/8 inch diameter.

half gallon, quart, pint and half pints are the sizes available.

There are gallon jars sold, but I don't know of anything that can be safely canned in them. They make great storage jars.

Pretty decorative jelly jars are available if you are making jellies or jams. These are nice especially if you are giving them as gifts.

Jars may be reused many times. The however are a one time use. The screw bands are reusable but the seals or flats need to be purchased new each time.

canning jars01

Can I reuse jars from other products?

Now for the debate.... many canners want to know if you can reuse jars from store bought products. You know the jelly,pickle, or mayonnaise jars? There are differing opinions on this. Some say absolutely not. Some say it is ok for a water bath only.

Here are my cautions with this.

There is always a higher risk of breakage, so as I said the sturdier canning jars are better.
Recycled food jars will sometimes have a thinner rim on the jar so the risk of a failed seal is higher as well. Be sure to check your seal before storage. Check it again when you pull the jar to use it. Do not use the food if the seal is not intact.
DO NOT use them in a pressure canner.
Be sure your lids will fit correctly. The screw band must fit the threads of your jar and the sealing compound must fit to the edges of your jar.

If you have standard preserving jars available they should always your first choice.