Weck Cylindrical Jars

Yes, Weck jars are specifically designed for home canning. The glass lid, rubber gasket, and metal clamps create a secure, airtight seal that is perfect for water bath processing.

No, the metal clamps are only used during the processing phase to hold the lid in place. Once the jar has cooled and the vacuum seal has formed, you should remove the clamps to ensure you can easily detect if the seal has been compromised.

While the glass is durable, we generally advise against freezing in these jars. The straight-sided design helps, but the expansion of frozen liquids can cause the glass to crack or break.

Yes, the glass components are dishwasher safe. However, we recommend hand washing the rubber sealing rings to maintain their elasticity and longevity.

Absolutely. Weck replacement gaskets are widely available and should be replaced if they show signs of cracking, stretching, or brittleness to ensure a proper seal for your preserves.

The 20.2 oz (Model 905) size is a versatile mid-range option. It is excellent for storing pantry staples like grains and dried goods, or for canning medium-sized batches of sauces, pickles, and jams.