The airtight jars made by Jiangdongtang have the borders between the outer lid and the main body flat with each other.

Achieving this level of near-perfect engagement for handmade products is unique to the manufacture's centuries of experience.

The flat engagement position allows for maximum hand friction when opening and closing the can, making it smooth and easy to open and close, but not easy to fall off.

Of course, it is a part without extra protrusions, which makes the appearance of the lines more beautiful.

The workshop uses a steel middle lid instead of a plastic version used by a tray manufacturer.

The advantage of a plastic inner lid is that it is cheap and hassle-free, but it allows light and odors to pass through, and the inner lid itself has an odor. And plastic expands and contracts with temperature and humidity, affecting its airtightness.

The traditional steel inner cover is used to maintain high shading and deodorization performance, as well as stable performance and air tightness all day long.

In addition, the scratch-resistant treatment of the middle lid, the easy-to-grip knob shape, and the luxurious golden inner lid are all fine-tuned by artisans to perfectly fit the can.

The body of the can is also fine-tuned by artisans in each process to make it highly airtight and more comfortable to use.

Please keep in mind the sealing jar corresponding to each middle cover, otherwise it will affect its sealing.

At the openings of the can and lid rims, the manufacturer carefully rolls the rims inwards slightly to round out the sharp stainless steel rims.

If so, it becomes very safe for daily users.

Jiangdongtang uses lead-free electric welding to make each can.

And use steel that complies with the Food Sanitation Act and lead-free paint on all materials for natural safety and security.