Dish Bar vs Bottle
A solid dish block does the same work as several bottles, without shipping water in plastic.
A bottle of washing-up liquid is mostly water. You pay to move that water across a country in an HDPE bottle, then throw the bottle away. A solid block is the same surfactants with the water removed.
Solid dish block
- Plastic / use
- 0g
- Lifespan
- ~3 bottles' worth
- Recyclability
- 95%
- Decomposes
- —
- +No plastic packaging
- +No water shipped around the country
- +Lasts about three bottles
- −Needs a draining dish
- −Less foam
- −Awkward for a full sink
Bottled washing-up liquid
- Plastic / use
- 0.6g
- Lifespan
- ~2 months
- Recyclability
- 30%
- Decomposes
- 450 yr
- +Familiar and foamy
- +Easy to dose into a sink
- +In every shop
- −Mostly water in a plastic bottle
- −5-8 bottles a year per household
- −Pump tops are mixed material and get rejected at sorting
The differences
| Bar | Bottle | |
|---|---|---|
| Water content | ~5% | 70-90% |
| Packaging | Cardboard sleeve | ~45g HDPE bottle + pump |
| Plastic per year | ~0g | ~300g |
| Replaces | 1 block ≈ 3 bottles | — |
| Best for | Brush-and-scrub washing | Filling a sink |
| Cost per year | ~$24 | ~$30 |
Why one wins
A typical 500ml bottle is 70-90% water and around 45g of HDPE. A household gets through five to eight bottles a year — roughly 300g of plastic and a lot of freight moving water around.
One 170g dish block replaces around three bottles of liquid and arrives in a cardboard sleeve. No pump, no cap, no label film.
HDPE bottles are one of the better-recycled plastics, but 'better' is relative: they are usually downcycled into pipe or crates rather than into new bottles, and a pump-top dispenser is a mixed-material part that gets rejected.
Performance is the fair objection, and it holds up: a wetted brush loaded from a block cuts grease as well as liquid. What it does not do is produce the thick foam people associate with cleaning power.
