Vacuum sealing glass jars is suitable for many products

Jar Vacuum sealing products in glass jars is easy and has many interesting advantages. Henkelman shares its experiences about this vacuum packaging technique.


How does it work?

In this example, we use pickles. Make sure you fill the jar with oil and pickles up until 2 to 3 cm below the top surface. Put the twist cap on the jar and twist it to close it. Then place the jar in the vacuum chamber. Define the boiling point of your product and set the vacuum percentage just before that. This depends on the type of liquid you use, such as oil or vinegar and the temperature. Of course, you don't need the seal, so this option can be switched off. Finally, close the lid and the vacuum packaging cycle starts. You can also just put a product without liquid and program the machine on the deepest vacuum 99,8%.

Glass jars


Once the cycle has ended, the lid of the machine opens automatically. How do you verify if your jar has been sealed successfully? You could check this in two ways. First of all, there should be a dip in the cap when all the air has been extracted and the cap has been sealed. Furthermore, when you tap the cap with your finger you should hear a hollow sound. Then you know the jar has been perfectly vacuum sealed.

Other products

Vacuum sealing jars is suitable for more, less conventional products, such as mayonnaise and honey. It is also suitable for fragile products that otherwise get crushed by a vacuum bag.


This vacuum packaging technique is easy and efficient. It is also an environmentally friendly way of vacuum packing your product. In a Boxer 42XL for example, you could place up to 16 jars. But there's more:

  • Extended shelf life
  • No oxidation because of the absence of air to react with the oil.
  • No leakage, better presentation
  • Reusable packaging materials, environmentally friendly and saving money 
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