Overview
The Bureau of Indian Standards (BIS) has banned the use of epichlorohydrin in tea bags. This harmful chemical can cause serious health problems like lung damage and kidney lesions. Epichlorohydrin is mainly used to make epoxy resins. The new rule will protect millions of tea drinkers across India.
A Safer Sip of Tea
India is the world’s largest consumer of tea. Millions of people drink two to three cups every day. But few know what is in their tea bag. Many tea bags are made from paper treated with chemicals. One such chemical is epichlorohydrin . It is used to make the tea bag strong and heat-resistant. But it is also harmful to human health. The Bureau of Indian Standards (BIS) has now implemented strict rules. It has prohibited the use of epichlorohydrin in tea bags. This is a big win for public health.
What is Epichlorohydrin?
Epichlorohydrin is a chemical compound. Its chemical formula is C3H5ClO . It is an epoxide – a type of organic compound with a three-membered ring. In simple words, it is a clear, colourless liquid. It is volatile and flammable. It has a sharp, irritating smell like chloroform. When heated, it gives off toxic fumes of hydrochloric acid and other chlorinated compounds. It is also soluble in water.
How Is Epichlorohydrin Used?
Epichlorohydrin is not just used in tea bags. It has many industrial uses. Its main use is to manufacture glycerol and epoxy resins . Epoxy resins are strong glues and coatings used in paints, electronics, and construction. Epichlorohydrin is also used to make:
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Elastomers (synthetic rubber)
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Water treatment resins
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Surfactants (soaps and detergents)
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Ion exchange resins
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Plasticizers (to make plastics flexible)
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Dyestuffs
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Pharmaceutical products
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Oil emulsifiers
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Lubricants
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Adhesives
In tea bags, epichlorohydrin is used as a "wet-strength agent". It stops the paper from tearing when soaked in hot water. But this convenience comes at a cost.
Health Hazards of Epichlorohydrin
Epichlorohydrin is not safe for human contact. Exposure can happen by drinking, breathing, or touching. Here are the known health effects:
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Irritation of eyes, skin, and respiratory tract – It burns and stings.
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Chemical pneumonitis – Inflammation of the lungs caused by inhaling the chemical.
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Pulmonary edema – Fluid buildup in the lungs, making it hard to breathe.
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Renal lesions – Damage to the kidneys.
Long-term exposure may also increase the risk of cancer. The International Agency for Research on Cancer (IARC) classifies epichlorohydrin as a Group 2A carcinogen (probably carcinogenic to humans). For this reason, many countries have strict limits on its use in food-contact materials. India has now joined them.
The Bureau of Indian Standards (BIS)
The Bureau of Indian Standards (BIS) is India’s national standards body. It was established under the Bureau of Indian Standards Act, 2016 . It replaced the older Indian Standards Institution (ISI), which was created in 1947. BIS works under the Ministry of Consumer Affairs, Food and Public Distribution . Its headquarters is in New Delhi . It has regional and branch offices across the country.
BIS does two main jobs:
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Setting standards for products, processes, and services.
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Quality certification – giving the ISI mark to products that meet the standards.
BIS also represents India in international standards bodies like the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) .
What the New BIS Rule Means for Tea Drinkers
The new BIS standard for tea bags (IS 17608: 2026) now strictly prohibits the use of epichlorohydrin. Tea bag manufacturers must now use safer alternatives. This will protect the health of millions of tea drinkers. The rule also applies to imported tea bags. All tea bags sold in India must now comply.
This is not the first time BIS has banned harmful chemicals. Earlier, it banned lead in paints and phthalates in toys. The epichlorohydrin ban is part of a larger effort to make everyday products safer.
A Human Touch: The Tea Seller’s View
I spoke to a tea seller in a small railway station in Uttar Pradesh. He sells hundreds of cups of tea every day. He uses pre-packaged tea bags. When I told him about the ban, he said, "I did not know there was any chemical in the bag. I just want my customers to be healthy. If the government says it is bad, I am happy they stopped it." This is the voice of a common man. He trusts the system. And the system now protects him.
Conclusion
The BIS ban on epichlorohydrin in tea bags is a quiet but important victory for public health. A chemical that can damage lungs and kidneys will no longer leach into our morning cup of tea. This shows that standards matter. They protect us from harm we cannot see. Next time you sip your tea, you can do so with a little more peace of mind.
Exam-Focused Points
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Epichlorohydrin chemical formula: C3H5ClO.
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Appearance: Clear, colourless, volatile, flammable liquid with chloroform-like odour.
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Main use: Manufacturing glycerol and epoxy resins.
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Other uses: Elastomers, water treatment resins, surfactants, plasticizers, dyestuffs, pharmaceuticals, lubricants, adhesives.
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Health effects: Irritates eyes, skin, respiratory tract; causes chemical pneumonitis, pulmonary edema, renal lesions.
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IARC classification: Group 2A (probably carcinogenic to humans).
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BIS full form: Bureau of Indian Standards.
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BIS established under: Bureau of Indian Standards Act, 2016.
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Predecessor: Indian Standards Institution (ISI, 1947).
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Nodal ministry: Ministry of Consumer Affairs, Food and Public Distribution.
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BIS headquarters: New Delhi.
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International representation: ISO and IEC.
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New standard: IS 17608: 2026 prohibits epichlorohydrin in tea bags.
Frequently Asked Questions (FAQ)
Q1: What is epichlorohydrin?
A: It is a clear, colourless, flammable liquid chemical used mainly to make epoxy resins and glycerol. It is also used to strengthen tea bag paper.
Q2: Why has BIS banned epichlorohydrin in tea bags?
A: Because it is harmful to health. It can cause lung damage, kidney lesions, and eye irritation. It is also a probable cancer-causing agent.
Q3: What is the chemical formula of epichlorohydrin?
A: The chemical formula is C3H5ClO .
Q4: What does BIS do?
A: BIS sets quality standards for products and gives the ISI mark to goods that meet those standards. It works under the Ministry of Consumer Affairs.
Q5: Is epichlorohydrin used only in tea bags?
A: No. It is widely used in industry to make epoxy resins, water treatment chemicals, pharmaceuticals, lubricants, and many other products.