Prepare the sand: remove large pieces

Remove large particles and stones from the sand so they do not take up too much space. You can do this by hand or sieve the sand through a 3-5 mm wire mesh.

Prepare the sand: remove dust

It is recommended to remove the dust from the sand. Otherwise the dust can clog the pores of the pot.

Dust can be removed by a method called winnowing.

To remove dust by winnowing, slowly pour the sand from shoulder height (you may need a stool depending on your height) onto a cloth on the ground. Any gentle breeze or air movement will blow the dust away while the sand particles fall onto the cloth below.

Put sand in the basin

Put the sand in the bottom of the outer pot to create an even surface for the inner pot to sit.

Put the clay pot in the plastic basin

Center the clay pot on the layer of sand inside the plastic basin. Fill the space between the two pots with additional sand.

Wet the sand

Wet the sand with water. You have added enough water when it takes a few seconds for the water to absorb from the top. If the clay pot begins to float, you have added too much water. Then you have to drain the water before you use the cooler.

Now your clay pot cooler is ready to use