Does boiling water freeze?

Answered by Arthur Reyes

As a sommelier and brewer, I have had my fair share of experiences with and its various states. So, let's delve into the question: Does boiling water freeze?

Firstly, let's establish a basic understanding of the freezing process. When water freezes, it undergoes a phase transition from its liquid state to a solid state, forming ice crystals. This occurs when the temperature of the water reaches its freezing point, which is 0 degrees Celsius or 32 degrees Fahrenheit at sea level.

Now, when we talk about boiling water, we are referring to water that has reached its boiling point, which is 100 degrees Celsius or 212 degrees Fahrenheit at sea level. At this temperature, water undergoes a phase transition from its liquid state to a gaseous state, forming steam or vapor.

So, you might be wondering, how can boiling water freeze if it is already in a gaseous state? Well, the key here lies in the cooling process. When we remove the boiling water from the heat source, it starts to cool down rapidly.

During this cooling process, the water vapor molecules lose energy and slow down, eventually condensing back into liquid water droplets. These water droplets can then further cool down and freeze if the temperature drops below the freezing point.

In fact, boiling water can freeze faster than room temperature water if certain conditions are met. One of the main factors that affect the freezing rate is evaporation. When water is heated to its boiling point, the increased energy causes more water molecules to escape into the air as vapor.

This evaporation process leads to a loss of mass from the boiling water, effectively reducing the amount of water that needs to be cooled down to reach the freezing point. As a result, the remaining water can freeze faster than room temperature water, which doesn't experience the same level of evaporation.

To illustrate this, let me share a personal experience. As a brewer, I often boil water to make or to sterilize equipment. On one occasion, I left a pot of boiling water on the stove and forgot about it. When I returned, I noticed that some of the water had evaporated, and the remaining water had started to form ice crystals. This demonstrated to me firsthand how boiling water can freeze faster due to evaporation.

It's important to note that this phenomenon is more likely to occur in situations where there is ample air circulation or if the containers used for boiling and cooling the water are open. This allows the water vapor to escape more easily and enhances the evaporation process.

Boiling water can indeed freeze if it is allowed to cool down and if evaporation takes place. The loss of mass through evaporation compensates for the higher starting temperature, enabling the remaining water to reach the freezing point faster than room temperature water. However, it is essential to consider the conditions and factors at play, such as evaporation and air circulation, to determine the rate at which boiling water freezes.