Have you ever wondered where those huge bricks of gold come from when you see them? These gold bars are actually cast in a mold that is durable enough to contain the melted gold. When the gold cools down, it forms the bar. They are usually produced directly from gold that has been melted at a smelter or manufacturer.

The way that the melted gold is used to make them, however, can be very different.

There are three basic types of gold bars that are made today.

  • Long, flat bars are cast so that they can be minted.
  • Large cast bars are created with their approximate weights stamped onto them.
  • Small bars that weigh 1,000 grams or less have their specific weight stamped onto them.

What makes this process so unique is that different gold refiners and smelters will apply their own variations to the gold bar making process. Some even use automated systems so that each gold bar is created with computer programming and robotic manufacturing instead of hand-casting.

How Soon Is It Before the Gold Bars Are Cooled?

Once the melted gold has been placed into a form, the cooling process begins just seconds after the pouring has been completed. The most popular way to cool gold is through quenching, which means that the forms with the gold bars are dropped into a tank of water. Sometimes the bars are allowed to cool gradually through air exposure.

Once the gold bars have cooled down enough to be touched, they are placed on a table for cleaning. A soft cloth is used to remove any stains that might be on the gold. It is at this point that the gold bars will be weighed.

If a bar is approved to enter circulation, then they will be marked as required. This could mean a serial number imprint, the refiner’s official certification, or the purity of the gold batch from the bar was made. Gold bars under 1,000 grams will generally have their exact weight marked on them as well.

Are Small Cast Bars Made Differently?

Sometimes small cast bars are made with granules or small cut pieces instead of a liquid cold. These small pieces are placed into a crucible or a mold and then heated up to turn them into a bar. They are usually made to an exact weight, but some countries allow for variable weights to be created with these gold bars as long as the exact weights are included on the bar.

Owning gold bars is a great way to secure an investment for the future. They generally have better value than money does over the long term and it is a commodity that is always wanted in some way. Although most consumers won’t be looking to purchase 400 ounce bars of gold, the small gold bars are a great way to invest! By making sure the manufacturing process is smooth using the outlined methods above, you’ll also be able to make sure that you have a pure, valuable product instead of a cheap knock-off.