4 ways to measure water pH quickly and accurately at home
1. What is the pH of water?
The pH of water is a measure of the acid/base level of water. Domestic water or drinking water has specific pH regulations. When this index exceeds or falls below the allowable level, it can affect the quality of production, daily life and health. Therefore, users need to clearly understand the meaning of pH in water with the following value scales:
- pH = 7: Neutral solution, neither acidic nor alkaline. This is the pH level of pure water.
- pH <7: The solution is acidic, the lower the pH, the stronger the acidity. This water source should not be used for drinking but only for normal household purposes.
- pH > 7: The solution is alkaline, the higher the pH, the stronger the alkalinity. Water with a pH above 7 to 9.5 is good for health and can be used for direct drinking.
The pH scale of water ranges from 0 - 14 with increasing alkalinity.
2. 4 simple and accurate ways to measure water pH at home
2.1. Using litmus paper
Litmus paper is soaked in ethanol solution or solution extracted from the roots of Roccella and Dendrographa lichens. You just need to dip the litmus paper into the amount of water to be measured and wait about 1-2 minutes for the paper to change color and compare it with the pH color chart to read the result.

Users rely on the color of litmus paper to determine the pH of water.
Litmus is a cheap tool that helps measure the pH of water quickly but the accuracy is not high, it is only for reference. Besides, depending on the quality of each type of litmus paper, the results have a difference of about 0.5 - 1 pH.

Each box of litmus paper comes with a pH color chart for users to compare.
2.2. pH test strip
pH test strips can test the pH of water ranging from 1 to 14 depending on the type. This test strip is compact with high accuracy. You just need to dip the strip into the solution to be measured for about 5 seconds for the strip to change color and compare it with the pH color chart to know the result.

The pH test strip is impregnated with chemicals to help determine the pH of water with a specific and accurate measurement range.
2.4. Color changing solution
Color-changing solution, also known as pH indicator, is a substance that, when reacting with water, will cause the color to change within a narrow pH range. Through this, you will determine the pH of the water. Some commonly used indicators include:
- Methyl Red: Used to determine pH values in the range of 4.4 - 6.2. If pH ≤ 4.4 the solution will turn red. If pH ≥ 6.2 the solution will turn yellow and turn orange when pH is between 4.4 and 6.2.
- Bromocresol green: Used to determine pH between 3.8 and 5.4. The solution turns yellow when pH ≤ 3.8, turns blue when pH ≥5.4 and turns green when pH is between 3.8 and 5.4.
- Bromthymol Blue: Used to determine pH in the range of 6-8. The solution turns yellow when pH ≤ 6, turns blue when pH ≥ 8 and is yellow-green, green or blue when pH is in the range of 6 - 8.
- Phenolphthalein: When at pH < 8 it will be colorless and will turn red when pH > 10.
To measure the pH of water using an indicator, you just need to add the active ingredient to the water sample to be measured and wait about 1-2 minutes for the chemical reaction to occur, causing the water to change color. Then, you compare the color of the water sample with the pH scale color chart and read the result.
The method of using color-changing solution is simple and quick, but is only for reference, helping users estimate the pH within a certain fixed range instead of knowing the exact value.
2.4. Water pH meter
The pH meter is a compact, affordable device that supports fast, reliable measurement of pH in water. Through the pre-installed analysis program, the results will be displayed accurately on the electronic screen. To do this, the user removes the electrode protection cap at the bottom of the pen, turns on the power and immerses the electrode tip in the solution so that it does not exceed the limit line.

The pH meter costs about 300,000 VND and can be reused many times.
Among the ways to measure pH, choosing a pH meter is an effective method to give accurate and quick pH parameters. Besides, this product has an average lifespan of 3 years, helping to save costs in the long run compared to other methods.
3. What is a safe pH level in water?
Understanding the standard pH of daily drinking water is very important, having a direct impact on human health. According to WHO recommendations , water with a stable pH from 6.5 to 9.5 should be used to bring the following benefits:
- Prevent and reduce symptoms of stomach diseases: Users should use water with a pH of 8.8 or higher to avoid excess acid in the body causing stomach diseases. This water source also has the effect of neutralizing pepsin, protecting the digestive mucosa, and improving stomach health.
- Preventing many dangerous diseases: Using alkaline water will help neutralize and eliminate harmful free radicals. In addition, water with a higher pH and strong antioxidant properties will help prevent aging and many chronic diseases such as diabetes, cardiovascular disease, etc.
- Restores Energy: Alkaline water can increase bone density by neutralizing the adverse effects of an acidic diet. This water source also supports rehydration, rapid energy recovery for people who exercise vigorously, play sports,...
In addition, users should absolutely not drink water with a pH below 6.5 with acidity to avoid the body having excess acid. This causes health problems such as: kidney stones, tooth enamel destruction, increased risk of osteoporosis, premature aging, irritation of the stomach lining leading to belching, heartburn, ulcers, and gastric reflux.
In general, choosing a water source with a pH level that meets the recommended standards is very important to help protect everyone's health. To use a water source with a safe, stable, and sustainable pH level, users should consider using the Mutosi Hydorgen Alkaline Ion Water Purifier manufactured according to the Japanese Hirayama quality management system.
Mutosi water purifiers all have a trendy design and come with many convenient features.
The water purifier is integrated with Slitec RO membrane, which has been globally certified by NSF/ANSI 58, granted by the WHO Collaborating Center for Food and Drinking Water Safety, with the ability to clean up to 99.99% of bacteria. Therefore, the filtered water has high purity, meeting the QCVN6-1:2010/BYT standards for direct drinking water.
In addition, some Mutosi RO water purifiers are also equipped with a functional filter core that helps replenish minerals, through electrolysis technology with a FDA-certified diaphragm to create alkaline ionized water that is beneficial to health. Using alkaline ionized water with a pH of up to 9.5 and many micro-minerals helps purify the body, strengthen the immune system, and fight against oxidizing agents.
The above are simple, quick ways to measure pH and can be done at home. You should use a hydrogen water purifier as a simple and effective way to provide clean water with standard pH to help protect your health and improve your quality of life.
To refer to Mutosi's alkaline ionized water purifier lines, please visit the website Mutosi.com or contact hotline 1900.636.595 for quick support!