Weck jars were created by the J. WECK Company in Germany, who began selling them in 1895. They were initially sold in Germany and began selling outside of Germany in 1902. It soon became the most popular home canning system in Germany and Europe.
This system uses glass jars (200 ml–1.5 l), reusable rubber seals, and glass lids. During the canning process the lids are secured by steel tension clips which can be removed once a vacuum seal has formed. During storage the vertical position of the rubber seal's external tongue indicates the status of the sealing.
Weck products are still produced and are available from German hardware and online stores. Used equipment is frequently sold on online auction sites and in opportunity shops.
- "The Best New Tools for Making Old-Fashioned Jams and Preserves".
- "FOOD STUFF".
- "Home Canning: Pickles, Peppers, and a Dash of BPA?".
- Giles, Autumn. "WECK, A History". Kaufmann Mercantile. Retrieved 26 September 2014.