Small plastic sachets — used for drinking water, juice, and various packaged liquids and condiments — are among the most common items we find scattered as litter and mixed into general waste across Kasarani. They're also one of the clearest examples of a plastic product that, however common, our recycling system genuinely cannot handle economically, and it's worth explaining why plainly rather than pretending otherwise.
Why sachets are so common in the first place
Small sachets are cheap to produce and sell at a price point accessible to households and individuals who might not buy a larger bottled equivalent, particularly for drinking water in areas where larger packaged options cost more per use. This affordability is precisely what makes them so widespread, and precisely what makes the resulting waste volume so significant relative to their tiny individual size.
Why sachets don't fit our PET and HDPE buy-back categories
Our plastic buy-back initiative focuses specifically on PET and HDPE because these have viable, economically functioning recycling markets at the volume we handle. Sachets are typically made from very thin, often multi-layered plastic film, sometimes combining different plastic types or even plastic with foil in a single laminated sheet, which makes them extremely difficult and often not economically viable to separate and recycle using standard plastic recycling processes.
What happens to sachet waste currently
Sachets collected through our general waste stream, since they don't fit our recyclable categories, are handled as general waste rather than recycled. This is a genuine limitation of our current system, not a choice we're satisfied with — it simply reflects the reality that most small-scale recycling operations, including ours, lack the specialised processing needed to handle multi-layer sachet film economically.
Why sachets are a particular litter and dumping problem
Precisely because they're small, lightweight and generated in huge volume, sachets are disproportionately likely to end up as litter rather than properly disposed of, blown by wind, washed into drainage channels, or simply discarded casually in a way a larger, bulkier item might not be. This connects directly to the drainage blockage issues we've written about elsewhere — sachets are a frequent, significant contributor to the kind of small plastic debris that accumulates in and blocks drainage channels.
What can genuinely be done about this at the household level
The most effective response available to individual households isn't better disposal of sachets after use, but reducing reliance on them where practical alternatives exist — a reusable water container filled from a larger, properly stored source, for instance, rather than repeated single-use sachet purchases. Where sachets are unavoidable, ensuring they're properly bagged and included in general waste collection, rather than discarded loosely, at least prevents them from becoming litter and drainage debris, even though it doesn't solve the underlying recycling limitation.
What would need to change for sachets to become recyclable at our scale
Specialised processing facilities capable of separating multi-layer film into its component materials exist at larger industrial scale in some contexts, but building or accessing that kind of capacity is well beyond what a community-scale operation like ours can currently support. This is a case where the solution likely needs to come from producer-level packaging redesign, using simpler, more recyclable materials from the outset, or larger-scale regional recycling infrastructure, rather than something we can solve purely through better community-level sorting.
Why we're naming this limitation rather than avoiding it
We could describe our recycling programme in a way that implies all plastic is potentially recoverable if households just sort well enough. We'd rather be honest that some very common plastic products, sachets prominent among them, simply aren't currently recyclable within our operating model, since an honest picture of what we can and can't currently handle is more useful to residents than an overly optimistic one.
Why we mention this limitation specifically in our schools sessions
We've found it genuinely useful to name this specific gap directly during our recycling education visits, since pupils and residents alike sometimes assume any plastic item can eventually be recycled if sorted carefully enough. Being explicit that certain common items, sachets prominent among them, currently fall outside what any community-scale system can handle helps set realistic expectations about what individual sorting effort can and can't achieve.
Frequently asked questions
Can I bring water or juice sachets to your buy-back points?
No, sachets aren't currently accepted for buy-back payment since they don't fit our PET or HDPE recycling categories; they should go into general waste instead.
Why are sachets harder to recycle than plastic bottles?
Sachets are typically made from thin, often multi-layered film combining different materials, which is far more difficult and costly to separate and process than the single-material plastic used in most bottles.
What can I do to reduce sachet waste from my own household?
Where practical, switch to a reusable container filled from a larger, properly stored water source rather than repeated single-use sachet purchases, which reduces both cost over time and waste volume.
For more on what we can and can't currently recycle, see our piece on how our plastic buy-back initiative works.