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Weck Rubber Rings 40mm - Pack of 10

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    Flat shipping €5.95 within the ROI. 

    Free shipping from €50 within the ROI.

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    We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

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    Weck Rubber Ring 40mm - Weck Rubber Ring 40mm -

    Product Details

    Weck Rubber Rings 40mm diameter. Pack of 10 rings.

    Weck Rubber Ring 40mm are needed for preserving food (as are clamps).

    Do I need rubber rings or clamps?

    Product information:

    1 pack contains 10 rubber rings.

    Temperature-resistant from -30 ° to 120 °Celsius, therefore suitable for dishwasher, oven, microwave and freezer. Available in sets of 10.

    About Weck Jars and Rubber Rings

    Weck Jars are originally made for canning and preserving food, especially fruit and vegetables. The glass is strong enough to withstand the pressure and heat needed during the canning process. The lid has that special format so that it can seal the jar while reducing the amount of air inside.

    Rubber Rings are needed to seal and hold the lid on the jar. When heated, the food inside the jar will expand and pressure will increase. When using Rubber Rings and Clamps, the lid will sit tight enough on the jar to avoid air and bacteria coming into the jar. However, it will still allow air to get out in case the pressure inside is too high (for example during the canning process or when fermenting food). This makes Weck Jars a great solution both for canning/preserving and for fermentation.

    How do Weck Mold Jars work?

    Weck Mold Jars are designed to withstand pressure or be heated while looking great. Through their elegant design, they are an eye-catcher on your table or in your cupboard. Therefore they will always attract attention, no matter where you place them.

    Weck Jars are made in Germany and made of high-quality glass. Weck designed them for durability and food preservation. The traditional method of food preservation involves heating and cooling - therefore Weck Jars can easily withstand pressure changes and quick temperature changes. When you heat up the jars and the food during the preservation process, the content will expand. Weck Jars are designed to release this pressure when being heated. After cooling down, the content will contract, what creates a vacuum inside and will press and hold the lid on the jar.

    Similarly, Weck Jars are great for fermentation: Microorganisms create gases that are allowed to flow out when the pressure is too high. Above all, with Weck Jars, you don't need to worry about the pressure inside the jar (in contrast to screw caps: with these, you might even create small bombs).

    All Weck Jars are dishwasher and microwave safe.

    Weck Jars are always without plastic and reusable, maximising sustainability and protecting the environment. Prepare your homemade food and do it justice!

    How to use

    To seal: Place the rubber ring either on the jar or on the lid and put the lid on top of the jar. Use the clamps to hold the lid firmly on the jar. Then heat or steam the jars until the jar and the food inside is properly pasteurised. Don't worry if the jars are underwater.

    To open: Remove the clamps. Pull the small tongue of the rubber ring. After that, you will hear the air flowing in. Just remove the lid and the ring. 



    Do I need rubber rings and clamps?

    If you want to preserve food by heating and pasteurising (see above) or if you want to seal and close the jar, then you will need to order rubber rings and clamps. Without clamps, the lid will sit loose on top of the jar.

    With every jar type we have indicated what size of rubber rings are needed for these specific jars. There is only one size of clamps, so you don’t need to worry about clamp sizes. 

    All jars come with lids included, so there’s no need to order additional lids.