Glass jar WECK Quadro 290 ml with lid – pack of 6, vacuum-sealing preserving jar

WECK Quadro 290 ml glass jars, pack of 6, are designed for home preserving and everyday food storage. Each jar holds approximately 290 ml and comes with a lid prepared for vacuum sealing to preserve jams, pickles, sauces and dry pantry goods. The jars are made from heat-resistant glass so they can be used for boiling water baths, cooled for refrigeration and washed for repeated reuse.

Advantages

The square shape of the Quadro jar saves shelf space and makes jars stable in storage and on shelving. Heat-resistant borosilicate-style glass resists temperature changes during boiling and cooling cycles, enabling safe use in hot water treatments. The included lids are suitable for creating a vacuum seal, extending shelf life for preserved foods. These jars are reusable, easy to clean and allow for visible inspection of contents without opening.

Suitable for

• Home canning of jams, jellies and fruit preserves
• Pickling vegetables and storing condiments
• Storing dry goods such as spices, grains and nuts
• Refrigeration of sauces, dressings and prepared meals
• Organising pantry shelves and visible food storage

Key specifications

• Capacity: 290 ml per jar
• Pack contents: 6 glass jars with lids
• Material: heat-resistant glass suitable for boiling water baths and refrigeration
• Shape: rectangular/square profile for efficient storage
• Closure: lid suitable for vacuum sealing and preserving
• Reusable and dishwasher-safe (check lid care instructions)

How to use

Before first use, wash jars and lids in warm soapy water and inspect sealing parts. Fill jars with prepared preserve or food, leaving the appropriate headspace recommended by your recipe. Apply the lid and process jars in a boiling water bath or other heat-processing method as required for the food type. After processing, cool jars upright and check that lids have sealed properly. Store sealed jars in a cool, dark place; refrigerated items may be stored in the fridge once cooled.

Usage recommendations

Follow tested preserving recipes and local food safety guidelines. Avoid sudden temperature shocks such as placing hot jars on cold surfaces. Replace lids or sealing elements if they show signs of wear or deformation to maintain reliable vacuum sealing.