Cardboard barrels (also known as paper barrels) have a relatively long production history in China, and are currently widely used in the packaging of pharmaceutical products and the chemical industry. However, with the development of new uses of cardboard barrels, they have also appeared in some food packaging industries.

Cardboard barrels are made by combining kraft paper and adhesive, and after production, there is a special inner film on the inner wall of the cardboard barrel. The use of this inner film can ensure that the stored food will not leak or spoil, thereby ensuring the quality of the food. To this extent, cardboard barrels are irreplaceable.

On the other hand, the material of the cardboard barrel itself is stable enough to not easily deteriorate or react with other substances in the air, which indicates that the cardboard barrel can be used as a packaging material for a long time.

However, it should be noted that due to the fact that cardboard barrels do not have as high hardness as stainless steel or iron products, damage to cardboard barrels is reduced during transportation.