Can You Use Clay to Boil Water Without Pots?

Gathering and Preparing the Clay

To use clay as a makeshift water boiler, you’ll need to gather a type of clay that is high in silica and low in iron, such as kaolin or ball clay. You can identify the right clay by its texture and color - it should be white or pale gray and have a smooth, powdery feel. To prepare the clay, mix one part clay to one part water to create a workable paste. If the mixture is too dry, add a small amount of water; if it’s too wet, add a small amount of clay.

Creating the Clay Boiling Method

Once you have your clay paste, shape it into a vessel that can withstand high temperatures, such as a spherical or cylindrical shape. The ideal size is about 6-8 inches in diameter and 3-4 inches deep. To create a hole in the center for the water to boil, use a stick or a small rock to create a hole about 1 inch in diameter. This will also help with airflow and even heating.

Using the Clay Boiling Method

To use the clay vessel, place it over a fire or a heat source, and fill the hole with water. The clay will start to heat up and eventually boil the water. To ensure the water reaches a rolling boil, place a small rock or a metal object in the water - when the rock starts to move or the object starts to sizzle, you know the water has reached boiling point. Be careful not to overheat the clay, as it can crack or break under too much heat.