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What distinguishes boiled water from purified water?

Updated: Mar 21

What is the difference between boiled water and purified water Boiled water and purified water are two different methods of making water safe for consumption, and they achieve their safety in different ways.

  1. Boiled Water: Boiling water is a time-tested method of disinfecting water that has been used for generations, especially in areas with limited access to clean water sources or during emergencies. When water is boiled, it reaches its boiling point, which is typically 100 degrees Celsius (212 degrees Fahrenheit) at sea level. The heat kills or inactivates most common waterborne microorganisms, including bacteria, viruses, and parasites, making the water safe for consumption.

It is essential to maintain a rolling boil for at least one minute (or three minutes at higher altitudes) to ensure the destruction of harmful pathogens effectively. Boiling is a relatively simple and accessible way to treat water since it doesn't require any specialized equipment. In some cases, a heat source and a container to hold the water are all that's needed.


  • Ease of Use: Boiling water is a straightforward process that can be done even without access to advanced equipment, making it a viable option in emergencies or outdoor settings.

  • Effective Microbial Disinfection: Boiling effectively kills or inactivates the majority of waterborne microorganisms, reducing the risk of waterborne diseases.

  • Low Cost: The cost associated with boiling water is minimal, as it mainly involves the use of a heat source.


  • Limited Contaminant Removal: While boiling is effective against microorganisms, it does not remove chemical contaminants or impurities present in the water.

  • Taste and Oxygen Loss: Boiled water may taste flat due to the loss of dissolved oxygen during the boiling process, which can affect its overall palatability.

  • Time and Fuel Consumption: Boiling large quantities of water can be time-consuming and may require a significant amount of fuel, especially in areas where fuel sources are scarce.

  1. Purified Water: Purified water using a Water Purifier Dispenser goes beyond simple disinfection and involves comprehensive treatment methods to remove a wide range of impurities, contaminants, and microorganisms. Various purification techniques are used to achieve purified water, each offering specific advantages and effectiveness:

a. Filtration: Filtration involves passing water through physical barriers, such as fine mesh or porous materials, to remove suspended particles, sediment, and some microorganisms. Filters can be made from materials like activated carbon, ceramic, or sand, each designed to target specific impurities.

b. Distillation: Distillation is a process that involves boiling water to produce steam, then condensing the steam back into liquid form. This method effectively removes contaminants with higher boiling points than water, such as heavy metals, chemicals, and some microorganisms. The condensed water is pure and free from most impurities.

c. Reverse Osmosis (RO): Reverse osmosis is a water purification method that utilizes a semipermeable membrane to remove ions, molecules, and larger particles from the water. The membrane acts as a barrier, allowing only water molecules to pass through, while blocking dissolved salts, contaminants, and microorganisms.

d. UV Sterilization: UV sterilization uses ultraviolet light to kill or inactivate microorganisms, including bacteria, viruses, and protozoa, present in the water. The UV light disrupts the DNA of these microorganisms, rendering them harmless and unable to reproduce.


  • Comprehensive Contaminant Removal: Purification methods like distillation, reverse osmosis, and UV sterilization remove a wide range of contaminants, including heavy metals, chemicals, dissolved salts, and microorganisms, ensuring high water quality.

  • Improved Taste and Appearance: Purified water often tastes and looks better than untreated water since many impurities affecting taste and clarity are removed.

  • Flexibility in Method Selection: Depending on the specific needs and available resources, different purification methods can be employed to achieve the desired level of water purity.


  • Cost and Complexity: Purification methods can be more complex than simple boiling and may require specialized equipment, making them potentially costly and challenging to implement in certain situations.

  • Mineral Removal: Some purification processes, such as reverse osmosis, may remove essential minerals from the water. While this may not pose significant health risks, it could affect the taste and nutritional value of the water.

  • Energy Dependency: Certain purification methods, like distillation and reverse osmosis, require a source of energy to operate, which may not be readily available in certain areas.

While boiled water is a basic and effective method for disinfecting water from harmful microorganisms, purified water undergoes more rigorous treatment to remove a wider range of contaminants, resulting in safer and often better-tasting drinking water. The choice between boiling and purification depends on the specific water quality needs, available resources, and the desired level of protection against contaminants.

If you want to find out more about Happie Water Dispener Singapore or more about water filtration and water purifying, contact our sales team!

What is the difference between boiled water and purified water

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