How Packaged Drinking Water is Tested for Purity in India
Douce EditorialDid You Know?
Before a bottle of Douce reaches you, it passes through one of the most rigorous testing regimes in Indian food safety. Here's exactly what that involves.
The BIS Standard for Packaged Drinking Water
In India, packaged drinking water is governed by IS 14543:2016 — the Bureau of Indian Standards specification for packaged drinking water. This standard defines 32 quality parameters that every certified manufacturer must meet consistently.
The 32 Parameters
Physical parameters: Colour, odour, taste, turbidity, pH (6.5–8.5), total dissolved solids (max 500 mg/L).
Chemical parameters: Heavy metals (arsenic, lead, mercury, cadmium — all strictly limited), nitrates, fluoride, chloride, sulfate, iron, manganese.
Microbiological parameters: Total coliform count (must be zero per 100ml), E. coli (zero per 100ml), faecal streptococci (zero per 100ml).
How Testing Works at a Certified Plant
At Douce, every production batch goes through in-plant lab testing before sealing, third-party testing at BIS-approved external labs, and BIS factory surveillance visits by inspectors.
The Purification Process
Raw water at Douce goes through seven stages: Pre-filtration → Activated carbon filtration → Reverse Osmosis → UV treatment → Ozonation → Mineralization → Final 0.2-micron microfiltration.
Why It Matters
The seal on the cap isn't just packaging — it's physical evidence that this water has passed every test and has never been touched by human hands since leaving our purification system.
Douce Editorial
The Douce editorial team writes about hydration, health, and water quality for a modern Indian audience.
