The Truth About Making Your Water Safer
When people think about making tap water safer, boiling is often the first solution that comes to mind. It’s a common recommendation during boil water advisories, and for good reason—it can kill harmful microorganisms that may be present in contaminated water.
But here’s what many homeowners don’t realize:
Boiling water does not remove most of the contaminants people are actually concerned about.
If you’re relying on boiling alone to improve your everyday drinking water, it’s important to understand what it can—and can’t—do.
What Boiling Water Does Remove
Boiling water is highly effective at destroying many living organisms, including:
- Bacteria
- Viruses
- Parasites (such as Giardia and Cryptosporidium)
Heating water to a rolling boil for at least one minute (or three minutes at elevations above 6,500 feet) is generally enough to disinfect water from these biological contaminants.
That’s why public health officials recommend boiling water during certain emergencies, such as after a water main break or when bacteria are detected in a municipal water supply.
What Boiling Water Does NOT Remove
Unfortunately, boiling does not remove many of the contaminants that affect water quality every day.
Chlorine
Municipal water systems add chlorine to disinfect drinking water. While boiling may allow some chlorine to evaporate over time, it does not reliably eliminate all chlorine-related compounds, especially chloramines, which many cities now use because they remain stable throughout the distribution system.
PFAS (“Forever Chemicals”)
PFAS are synthetic chemicals that have gained national attention because they persist in the environment and can accumulate in the human body.
Boiling water does not remove PFAS. In fact, as water evaporates during boiling, the concentration of PFAS may actually increase slightly because the chemicals remain behind while some of the water is lost.
Heavy Metals
Contaminants such as:
- Lead
- Mercury
- Arsenic
- Copper
- Chromium
are not removed by boiling. Like PFAS, these contaminants stay in the water as it evaporates, potentially becoming slightly more concentrated.
Volatile Organic Compounds (VOCs)
Some VOCs may evaporate during boiling, but others can remain in the water. Additionally, boiling water containing certain VOCs may release those chemicals into the air, creating another potential exposure pathway.
Hard Water Minerals
Boiling does not soften hard water.
Minerals such as calcium and magnesium remain in the water and continue to cause:
- Scale buildup
- White spots on dishes
- Reduced appliance efficiency
- Soap scum
Nitrates
Nitrates are especially concerning for infants and young children.
Boiling does not remove nitrates. In fact, boiling can actually increase nitrate concentration because water evaporates while the nitrates remain behind.
Sediment and Dissolved Solids
Particles, sediment, rust, silica, and other dissolved minerals are unaffected by boiling. These substances require physical filtration to remove.
Why This Matters
Boiling is an excellent emergency disinfection method—but it isn’t a complete water treatment solution.
Many of the contaminants homeowners worry about today aren’t living organisms at all. They’re dissolved chemicals, metals, minerals, or compounds that require specialized filtration technology to remove effectively.
That’s why a boil water advisory doesn’t necessarily mean your everyday water quality concerns have been addressed once the advisory is lifted.
The Better Long-Term Solution
If you’re concerned about the quality of your home’s water, the most important first step is understanding what’s actually in it.
A professional water test can identify contaminants such as chlorine, heavy metals, hardness, iron, manganese, and other water quality issues. From there, the right filtration system can be selected to address your specific water conditions.
At Pure Way of the 4 States, we believe every home deserves clean, great-tasting water from every tap—not just water that’s free of bacteria.
Our whole-home filtration systems are designed to reduce many of the contaminants that boiling simply cannot remove, helping protect your family while improving the taste, odor, and overall quality of your water throughout your home.
Know What’s in Your Water
Boiling has its place, especially during emergencies. But for everyday protection, filtration is the key.
If you’ve ever wondered what’s really in your water, we’re here to help. Schedule a complimentary water analysis with Pure Way of the 4 States, and let our experts help you find the best solution for your home.
Because when it comes to your family’s water, knowing is better than guessing.