Let’s find out why we should not boil water again when it has cooled down.
The hazards of boiling water again
A warning about the dangers of boiling water multiple times has been issued by Dr. Arunesh Dutt Upadhyaym, a 37-year medical expert in India, along with many other experts.
- Nitrate dissolved in water is usually harmless. However, if water is boiled again too many times, it can convert the dissolved nitrates into nitrosamine – the cause of diseases such as cancer and leukemia.
- A small amount of arsenic in water is not harmful, but a large amount over time can damage the circulatory system and skin. Boiling water again can increase the amount of dissolved arsenic, so it is not advisable to boil water again.
- Boiling water again also increases the fluoride content. If the consumption of dissolved fluoride in water increases, it can increase the risk of bone disorders. Excess fluoride in children under 8 years old can harm teeth and tooth enamel.
- The dissolved calcium in water increases when it is boiled again, which can lead to kidney stones and gallstones.
- Boiling water multiple times alters the chemical properties of the water, resulting in a change in taste and increased concentration of unwanted chemicals and impurities.
- Furthermore, studies have shown that using water boiled again to brew tea can affect its taste.
Experts also advise against using boiled water to prepare formula milk for infants.
If you boil distilled water again, it does not change its chemical composition, but it is recommended to boil only the amount needed for each use.
4 negative health effects that can occur from drinking water boiled repeatedly
1. Digestive issues
The arsenic content in repeatedly boiled water is a cause of gastrointestinal problems. Initial symptoms may only be mild stomach pain, making it difficult to recognize.
2. Nervous system issues
According to research conducted worldwide, the fluoride in water has a negative impact on the nervous system, even affecting the IQ of children.
3. Cancer
Water always contains nitrates, and when exposed to high temperatures, it can convert into the toxic compound nitrosamine, which can lead to certain cancers such as colorectal, bladder, ovarian, and pancreatic cancer.
4. Cardiovascular and renal issues
Boiling water does not remove arsenic, one of the most harmful substances present in water. Especially when water is boiled again, this substance tends to develop and cause harm to the cardiovascular and renal systems.
- Digestive issues: Arsenic content in repeatedly boiled water can cause gastrointestinal problems, including mild stomach pain.
- Nervous system issues: Fluoride in water has been linked to negative impacts on the nervous system and even reduced IQ in children, according to global research.
- Cancer: High temperatures can convert nitrates in water into nitrosamine, a toxic compound associated with colorectal, bladder, ovarian, and pancreatic cancer.
- Cardiovascular and renal issues: Arsenic, which is not removed by boiling, can accumulate and harm the cardiovascular and renal systems, especially when water is boiled multiple times.
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