why this product

Avid juice canners swear that home-canned juice retains its freshness and flavor for months, even years. Weck bottle jars are curved at the neck so it is easier to pour once you’re ready to break one open. Unlike regular canning jars, the shape of these jars funnels the liquid into a clean stream, instead of spilling out in a splashy waterfall. 

Weck bottle jars are available ½ liter (six-pack).

Weck jars are made with thick glass to withstand boiling, sterilizing and processing over and over again. Glass lids will never rust, and the tab on the replaceable rubber rings, when facing downwards, indicates clearly that the seal on a jar is intact.

The point of canning is to hermetically seal the outside world from the sterilized interior of the jar, preventing the food inside from spoiling. Weck jars are designed to make it easy to tell whether or not this all-important seal has been made.

Canning juice is similar to canning jams and vegetables — heated liquid is poured into sterilized jars which are then processed in a water bath or pressure canner. Check the recipe to see which processing technique your juice needs. A general rule of thumb is that high-acid fruits and vegetables can be canned in a pot of boiling water, while low-acid vegetables need a high-pressure canner. 



use & care

Before using each Weck jar, run your fingertip along the rim and the sealing lid to check for chips and cracks. A new rubber ring is required each time. Check these for cracks by pinching the edges between your thumb and forefinger and running it along the ring's circumfrence. Any breakage in the sealing mechanism will prevent an air-tight seal from forming.

If the jars aren't properly sealed or sterilized, the juice inside will spoil or develop harmful bacteria.

Just before processing, the lids need to be held in place by a pair of spring-loaded stainless steel clamps. After the vacuum seal has formed and once the jars are fully cooled, the clamps can be removed and stored for next time.

To open the jars, tug at the rubber ring until you hear the seal release with a whizzing sound. The lids should lift off easily.


production & design

All-glass jars have been around since the 1800s, but in the early days there was no way to tell if the jar was properly sealed until you opened it months later and found the contents rancid, or not. The design of these jars made it much easier to tell, and that much closer to making canning a more fool-proof, less disappointing endeavor.

Designer Johann Weck first released his jars on January 1, 1900. A vegetarian and teetotaler, Weck was adamant about devising a reliable, healthy and natural way of preserving anything from asparagus to blackberries.

about the designer

Weck Canning Jars (Bottle)

Kaufmann Mercantile from New York, NY
  Added! See your Favorites
All options are required.
This item is currently not available.
Sorry, this combination is not available.

Thick-sided all-glass jars for home-canned juice. Preserve, store and serve liquids in the same container. Spout-shaped opening for a tidy pour. Made in Germany.

More Details

  • Technical Specifications:

    1 LITER WECK JAR (#766)
    Volume: 1 Liter, 1062 ml, 35.9 fl oz, 4 1/4 cups* 
    Size: 9 3/4'' (250 mm) high,  2 3/8'' (60 mm) opening
    Includes: 3 jars w/ lids, 3 rubber rings, 6 clamps
    (Purchase small rubber rings for replacement)  

    1/2 LITER  WECK JAR (#764)
    Volume: 1/2 Liter, 530 ml, 17.9 fl oz, 2 1/8 cups*
    Size:  7 1/4'' (184 mm) high, 2 3/8'' (60 mm) opening
    Includes: 3 jars w/ lids, 3 rubber rings, 6 clamps

    (Purchase small rubber rings for replacement)

    *Cup measurements are approximate  

    Glass, 100% natural rubber rings, stainless steel clamps

    Made in 

  • Restrictions: Promotions cannot be applied to this product.
  • Product Dimensions: H 1.0 Inches × W 1.0 Inches × L 1.0 Inches
  • Product Code: V176000282660

Shipping & Returns

  • This item ships directly from Kaufmann Mercantile in Columbus, OH
  • Item is ready to ship in 2 Business Day(s). Delivery date will vary depending on your shipping address.
  • International orders may experience possible delays and take longer to arrive.
  • We accept complimentary returns within 30 days of receipt if the item is unused and in original condition.
Kaufmann Mercantile Guarantee

Kaufmann Mercantile is committed to help you live a conscious and inspired life.

Many of the items you discover here are exclusive to Kaufmann Mercantile, which is what makes our community of designers and artisans so special.

If you find one of our products anywhere else for less than it's being sold on our site, we will match it.

Our dedicated Support Team is here to help. Reach out any time at:

between 9am-6pm ET Monday through Thursday and 9am-1pm ET on Friday
Have questions? We're here to help
Just Added
Just Added