Ha ha. If it is pure milk, it can be recycled and sold for the second time: it can be sold to a bakery to make milk steamed bread, used for bathing and pushing milk, or sold to farmers to make feed ... It is not excluded to go back to the factory for sterilization and then sell it, but it is generally not done. The national inspection is too strict, and it is not a small workload for us to go back and cut the packaging. If it is other milk, it is generally handled by farmers, and the possibility of returning to the factory for recycling is relatively small.

Milk is cheaper than some mineral water now. Can you make a profit without doing so? Get to know it.