The watering can is produced to last for many years. It is made of thicker iron sheets than usual, stronger welds and a rough finish.

When the watering cans are finished, they are hot galvanized. They are immersed in a zinc alloy that is 460 degrees hot. The zinc adheres to the iron as a thick syrup. When the jug comes up again, it hangs and drips for 20 minutes. This is the absolute best way to prevent the iron from rusting.

The jugs that do not get paint, the ones keeping the zinc color, start a slow oxidation process. That is, the zinc slowly matures in color. If you want this process to go faster, you can apply a weak acid, for example a sour milk product.