Jar and Packaged Drinking Water Plant Requirements in Bangladesh

Selling packaged or jar drinking water in Bangladesh is a regulated activity — BSTI (Bangladesh Standards and Testing Institution) sets standards for packaged drinking water, and a business intending to sell water commercially needs to confirm current licensing and standard requirements directly with BSTI, since these are specific regulatory obligations rather than something a treatment-equipment supplier can certify on a business's behalf. This article covers the general treatment approach typically involved, not the licensing process itself.

Packaged drinking water treatment commonly combines several stages rather than relying on one technology: pretreatment (sediment and, where relevant, iron removal) for the source water, activated carbon filtration to address taste, odour and organic compounds, reverse osmosis or a comparable process to reduce TDS and remove a broad range of dissolved contaminants, and a disinfection stage (commonly UV and/or ozone) as a final barrier against microbiological contamination before filling. Each stage addresses something the others do not, which is why single-stage treatment is not generally considered adequate for a packaged-water product.

Treated water quality can be undermined at the storage and filling stage if hygiene there is inadequate — this includes the cleanliness and material safety of storage tanks, the jar/bottle washing and sanitising process before refilling (particularly relevant for returnable jars), and the filling environment itself. A well-designed treatment system paired with poor filling-line hygiene can still produce a product with microbiological problems, which is why packaged-water quality control typically extends well past the treatment plant itself.

Because packaged water is sold to the public on an ongoing basis, routine testing (not just an initial commissioning test) is standard practice — testing source water periodically, testing treated water regularly, and testing the finished packaged product itself, since post-treatment handling can reintroduce contamination even when the treatment plant itself is performing correctly. What testing frequency and parameters are specifically required is set by BSTI's packaged-water standard and should be confirmed with BSTI directly rather than assumed.

Plant capacity should be sized against realistic production targets — daily fill volume, jar/bottle size mix, and peak versus average production days — rather than a generic "small business" package, since undersizing leads to production bottlenecks and oversizing adds unnecessary capital cost. As with any commercial water-treatment project, this starts with characterising the intended source water and the actual production requirement before specifying equipment.