Kilner Square Clip Top Jar

While these jars are designed for food storage and preserving, they are not specifically rated for high-heat pressure canning. They are best suited for dry goods, pantry storage, or refrigerator-based preservation.

Yes, the rubber seal will eventually degrade with repeated use and exposure to oils or acids. If you notice the seal becoming brittle or losing its elasticity, you should replace it to maintain an airtight environment.

Yes, the glass jars are dishwasher safe. However, we recommend removing the metal clip and rubber seal before washing to prevent rust on the metal components and to ensure a thorough clean.

A 17-ounce capacity is ideal for standard pantry staples like spices, loose-leaf tea, coffee beans, or small batches of homemade jam. It is roughly equivalent to just over two cups of volume.

The square shape is primarily designed for space efficiency. Unlike round jars, square vessels sit flush against one another, which helps eliminate wasted gaps on your pantry shelves or inside the refrigerator.