Why return jam jars

Pourquoi retourner les pots de confiture

Why return jam jars?

Why return jam jars?
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Jam is a delicious and popular food in many French homes. Jam storage is important so that you can use your jam stock for a long time. Over the years, people have adopted different methods of preserving food, including canning. However, there can be confusion about whether to return jam jars. To learn more about this process, read on.

How does canning work?

How does canning work?

There canning is a process that involves the use of gander glass or ceramic for storing food. Canning jars are usually fitted with a lid , which is tightly sealed to prevent air and moisture from coming into contact with the contents of the jar. Proper closing of the lid is essential for the canning process to be successful.

Why return jam jars?

Return the gander of jam is an important step in the canning process. This is because once the lid is sealed, bacteria cannot enter the jar. However, there may be air trapped in the jar, which may prevent the airtight seal. If the jar is turned upside down after filling, the air trapped in the jar will be pushed up and force the lid into place. This will ensure that air cannot come into contact with the jam, which will extend the shelf life of the jam.

How to return jam jars?

The process to flip the jam jars is very simple and only takes a few minutes. You have to daughter the hot jam jar to about 1 cm from the rim, then carefully wipe the rim of the glass. Then mop up any trapped air by gently tapping the jar on a flat surface. Then just immediately turn the jar upside down and set it on a flat surface. Let the jar cool completely and check the seal by pressing down on the lid. If it doesn’t move, you’ve sealed the jar properly.

Canning jam is a simple process, but there are other important steps to follow to ensure the jam is properly stored. Here are the additional steps for successful canning:

-Choose gander clean and sterilized to prevent harmful bacteria from contaminating the jam. You can sterilize the jars by immersing them in boiling water for a few minutes.

– Fill hot jars with jam, then blot to remove air.

– Carefully clean the rim of the jar to prevent impurities from coming into contact with the jam.

– Seal the jars by tightening the lid firmly.

– Put the jars in a boiling water for a specific duration. This will ensure that the jam is stored properly.

– Remove the jars from the pot of boiling water and place them on a flat surface.

– Once the jars have cooled, check the gasket to make sure it is properly sealed.

Did you know why it is important to turn the jars of jam? Not only can this prevent mildew and prolong the shelf life, but it also provides better sterilization by preventing air from entering the jar after it is filled with hot jam. It also prevents the formation of air bubbles in the jam, which can compromise its quality.

The sterilization process is crucial to ensure food stored in jars is safe to eat. By turning the jars over, the heat from the jam sterilizes the lid and the air is expelled, creating a vacuum. This prevents bacteria from growing in the jar, which extends the shelf life of the jam.

Proper storage of jam jars is also important for optimal preservation. Jam jars should be stored in a cool, dark place out of direct sunlight. This can help preserve the colors and flavors of the jam, in addition to extending its shelf life.

Ultimately, turning jars of jam is an essential step to ensuring optimal food safety and extending the shelf life of jam. For more food preservation tips and tricks, visit https://www.aujardin.org. With the right storage steps in place, you’ll be able to enjoy your delicious homemade jam long after it’s been made.


Q: How long does it take to boil the jars?

A: The canning time depends on the contents of the jar and the size of the jar. Please refer to recipe instructions for specific canning time.

Q: How do I know if the lid is hermetically sealed?

A: To check if the lid is tightly sealed, press the lid. If it does not move, it is hermetically sealed.


Now that you know why turning jam jars is important, you can add this simple step to your canning process. Always keep in mind that the use of high quality pots is essential to ensure that the jam is properly preserved. By following the above steps, you can enjoy your delicious jam for a long time.

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