Are Reusable Cleaning Bottles Worth It? Refillable vs Single-Use

For most homes, yes, a reusable cleaning bottle is worth it. A glass Bottle For Good costs $18.99 once. After that you buy refill tablets at $5.99 each, drop one in, top up with water, and the same bottle keeps going for years. Run that across your kitchen, bathroom and laundry and Good Change works it out at about $137 a year saved against the average New Zealand supermarket spray, plus roughly 30 plastic bottles that never get bought. The real question is not whether reusable cleaning bottles work. It is whether the maths and the small change of habit stack up for you.

What a reusable cleaning bottle actually is

A refillable cleaning system has three parts: a bottle you keep, a concentrate that ships small and light, and water you already have. Instead of buying a new pre-mixed spray every time one runs out, you rebuy only the concentrate. One Good Change tablet is dosed for a 500ml bottle, and you can go a little stronger or weaker to taste.

The pre-mixed spray on the supermarket shelf is mostly water. You pay to ship that water around the country, then you pay again, in rates or effort, to deal with the empty bottle. A refill system takes both out of the equation.

Refillable vs single-use: the cost

Over one year	Refillable (Bottle For Good)	Single-use supermarket spray
Upfront bottle cost	$18.99 once, lasts years	Built into the price of every bottle
Each refill	One $5.99 tablet plus tap water, makes 500ml	A whole new bottle each time
Plastic bottles bought	None after the first	About 30 a year for a whole house
Estimated annual saving	About $137 vs the average NZ supermarket spray	-
On the bench	Glass, refillable, matches the room	Printed plastic, usually hidden away

Against a mid-range natural or fragranced spray, which often runs $10 to $15 for 500ml, a refill tablet is clearly cheaper. Against the very cheapest supermarket spray it is closer, and the saving comes from the bottle you stop rebuying rather than the cleaner itself. Either way the plastic goes to zero: nothing to recycle, nothing to bin, nothing to run out of at the worst moment.

The two questions everyone asks first

Glass or plastic, and do the tablets actually clean. We have full answers to both, so here is the short version with a link to the detail.

On glass or plastic: glass feels better in the hand, does not hold onto colour or fragrance, and lasts indefinitely unless you drop it on tiles. Plastic is lighter and the safer pick for the shower. The full trade-off is in glass vs plastic refillable cleaning bottles.

On the tablets: a spray cleaner is mostly water carrying a small amount of active ingredient. A tablet is that active part on its own, so once it dissolves you have the same working strength in the bottle. We put that to the test in do natural cleaning tablets actually work.

How much plastic a refill system saves

The case for refillable is not that recycling is bad. It is that recycling mostly does not happen. The OECD's 2022 Global Plastics Outlook found:

"Only 9% of plastic waste is recycled, while 22% is mismanaged or littered, 49% goes to landfill and 19% is incinerated."

A cleaning spray bottle is a hard thing to recycle well: the trigger is mixed materials, there is product residue, and it is often the wrong size for kerbside sorting. Keeping one bottle and refilling it removes that problem. Across a whole house that is around 30 bottles a year that never need to be made.

What Stine at Good Change says

Ask Stine why a tablet, rather than a concentrate bottle or a mail-back pouch like some brands use, and the answer is friction.

"Any small obstacle becomes a no while you are standing in the cleaning aisle. A mail-back pouch means you actually have to post it back, or feel guilty binning it, and if you bin it you have left the same plastic behind anyway. A concentrate bottle is still waste, and not everyone finds it easy to decant liquid into a refill bottle without spilling or second-guessing the dose. A tablet you just drop in and add water. It is the least friction on the market." - Stine, co-founder of Good Change

The reason people stay, she says, is often nothing to do with plastic or cost. "They just look better. If you have set a beautiful table for a dinner party and people wander through to a bench covered in loud plastic bottles, the two do not match. People want the whole space to feel like theirs."

The honest downside

It is the spray triggers. The bottles and the cleaning are the strong part, and a refill system keeps the same trigger in use far longer than any throwaway bottle would. But triggers, the way they have been manufactured for decades, are not built to last forever. Good Change tests new ones constantly and sells replacement nozzles at cost, the same price they pay for them, so a worn trigger is a three dollar fix rather than a reason to give up on the bottle.

Where to start

If you want everything matched from the start, the Bottle For Good starter box pairs glass bottles with a refill tablet for each room. If you would rather build your own, the bottles and tablets range lets you pick the bottle and the scents you want.

Common questions

Are refillable cleaning bottles actually cheaper over a year?

Good Change puts the saving at about $137 a year against the average New Zealand supermarket spray, once the $18.99 bottle is paid off, plus the roughly 30 bottles you no longer buy or bin. Against a mid-range natural spray at $10 to $15 for 500ml, the gap is wider again.

Do cleaning tablets clean as well as ready-made spray?

Yes. Ready-made spray is mostly water with a small amount of active cleaning ingredient. A tablet is that active part in solid form, so once it dissolves you have the same strength of cleaner in the bottle.

Glass or plastic - which refillable spray bottle is better?

Glass for the kitchen and general use: it lasts, it does not stain or hold fragrance, and it looks better on the bench. Plastic for the shower or anywhere a dropped bottle would be a problem.

How many plastic bottles does a refill system save in a year?

Around 30 for a typical household running refillable bottles in the kitchen, bathroom and laundry. Every refill is one pre-mixed plastic bottle not bought and not binned.

Can I use refill tablets in a spray bottle I already own?

Yes, as long as it is clean and holds around 500ml. Rinse out the old cleaner, drop in the tablet, fill with water and let it dissolve. You do not need to buy a new bottle to start.

References

[1] OECD (2022). Global Plastics Outlook: Economic Drivers, Environmental Impacts and Policy Options. OECD Publishing, Paris.