Quick answer: Are sushi soy fish banned?
Yes—but only in South Australia. Since 1 September 2025, the little plastic soy sauce fish commonly included with takeaway sushi have been banned in the state. Other parts of Australia have not yet introduced the same ban, although New South Wales plans to require small condiment containers to be recyclable by the end of 2030.
The familiar little fish might seem insignificant, but it has become part of a much bigger conversation about convenience, unnecessary packaging and the everyday plastics we could quite easily live without.
Whether you call them sushi soy sauce fish, soy fish, little plastic fish or fish-shaped soy sauce containers, they are one of those familiar pieces of packaging most of us barely noticed. Twist off the tiny cap, squeeze the soy sauce over lunch and drop the empty fish into the bin.
Now, this cheerful-looking piece of plastic is prompting us to look more closely at the items that are manufactured for only a few seconds of convenience but can remain in the environment long after lunch is finished (and we could quite easily live without)!
Why Biome is looking at the little soy sauce fish
For more than 20 years, Biome has helped Australians find practical ways to reduce everyday plastic waste. Over that time, the conversation has expanded from obvious items such as shopping bags and takeaway cups to the smaller plastics we barely notice—bread tags, produce stickers, condiment containers and now the humble soy sauce fish.
Are soy sauce fish banned everywhere in Australia?
No. At the time of writing, South Australia is the only Australian state to have banned plastic soy sauce fish.
The South Australian ban applies to pre-filled plastic soy sauce containers that:
✔ Hold less than 30 millilitres
✔ Have a separate lid, cap or stopper
✔ Are shaped like fish or made in another small rigid shape, including rectangular containers
The rule came into effect on 1 September 2025 as part of South Australia’s continuing phase-out of problematic single-use plastics. It prohibits businesses from selling, supplying or distributing these containers within the state.
You can read the complete requirements in the South Australian Government’s guide to the 2025 single-use plastic bans.
The rest of Australia is moving at different speeds. New South Wales has announced plans to phase out soy sauce fish and similar small condiment containers by 2030, alongside changes intended to make sushi trays, bento boxes and other takeaway packaging easier to recycle.
For now, you may still find a little plastic fish swimming alongside your takeaway sushi outside South Australia.
Why were the little plastic fish singled out?
A soy sauce fish may be small, but that is part of the problem.
These containers are lightweight enough to be dropped, blown away or washed into drains. Even when someone puts one in a recycling bin with good intentions, it is generally too small for recycling sorting equipment to recover. Sauce left inside also makes the packaging difficult to clean and process.
3.3%
Single-serve condiment packages account for 3.3% of littered items found in NSW waterways, according to the NSW EPA.
That is a surprisingly significant contribution from packaging used for only a few seconds.
Once loose in the environment, the fish shape raises another concern. Birds and marine animals may mistake small containers or their separate caps for food.
It feels almost absurd that an object made to look like a fish could end up threatening real wildlife. Yet it is also a clear example of a wider problem: plastic can be manufactured for a moment of convenience but persist in the environment for much longer.
As one person told Biome in our July 2025 survey on plastics:
“Packaging of most products is excessive and an easy area to change. Govts need to legislate!”
Another described plastic as feeling:
“Virtually unavoidable when you’re on a budget and low on time and energy.”
Both perspectives matter. People should be able to grab an affordable lunch on a busy day without carrying the full responsibility for redesigning its packaging. Sometimes the most useful change is not asking every shopper to try harder. It is removing an unnecessary item before it reaches them.
Can sushi soy sauce fish be recycled?
In ordinary household recycling, soy sauce fish should generally be treated as non-recyclable.
The type of plastic may technically be recyclable in some circumstances, but the whole item must also be collected and successfully captured by a sorting facility. Soy fish are so small that they can fall through or escape mechanical sorting systems. Any soy sauce left inside creates further contamination.
Putting one in your yellow-lidded recycling bin does not guarantee that it will become something new. It is far more likely to be rejected, end up in landfill or escape as litter.
The NSW EPA confirms that current soy sauce fish are too small to be recycled.
This is an important distinction during Plastic Free July. Recycling has a place, but it cannot solve every packaging problem. When an item is used once, difficult to recover and easy to replace, avoiding it altogether is usually the more thoughtful option.
What are sushi shops using instead?
South Australian sushi businesses can provide soy sauce in several other ways, including:
✔ Larger bottles or dispensers for customers eating in
✔ Refillable condiment containers
✔ Sachets or squeezable packs
✔ Suitable compostable alternatives
✔ Soy sauce served directly with the meal
The simplest approach is often a shared bottle or dispenser. It provides the same soy sauce without creating a separate container for every customer.
Plastic sachets are still permitted in South Australia. They use less plastic than rigid soy fish, but they remain a single-use material and are not a complete answer. The better question is not merely, “What can replace the plastic fish?” It is, “Does every order need an individual serving of soy sauce at all?”
In fact, the NSW EPA has noted that simply moving from rigid soy fish to soft plastic sachets does not necessarily solve the problem. Its planned 2030 requirements will apply to all single-serve condiment packages, rather than only the fish-shaped containers.
For sushi businesses, changing packaging also involves genuine considerations around food safety, cost, convenience and supply. A thoughtful alternative needs to work in a busy shop—not only look appealing in theory.
Is there a plastic-free replacement shaped like a fish?
There are now plant-fibre, compostable soy sauce droppers designed to retain the familiar fish-like experience without conventional plastic. One example is Holy Carp!, an Australian-designed initiative created by Sydney design studio Heliograf. Made from plant fibre, including reclaimed sugarcane pulp, the dropper is home compostable, free from plastic and PFAS, and designed to be filled fresh in-store rather than at a factory.
In July 2026, four sushi businesses in Manly, New South Wales, became the first coordinated precinct in the state to trial Holy Carp! as part of the "Soy Long to Plastic Soy Fish" Plastic Free July campaign.
Compostable packaging still needs careful consideration. Its environmental benefits depend on what it is made from, whether appropriate composting systems exist and what happens if it becomes litter.
For many situations, a refillable dispenser remains the simplest way to avoid creating another single-use item altogether. Still, plant-based designs may provide a practical stepping stone for takeaway meals where a shared bottle is not possible.
What can sushi lovers do?
No one needs to give up takeaway sushi over a tiny plastic fish.
A few easy habits can prevent these containers from accumulating in desk drawers, handbags, lunchrooms and rubbish bins:
✔ Ask for no soy sauce when you do not need it
✔ Keep a bottle of soy sauce in the office fridge if sushi is a regular lunch
✔ Carry soy sauce from home in a small leak-resistant container (alongside your reusable takeaway container and reusable cutlery)
✔ Choose sushi shops that provide a dispenser or ask before adding condiments
✔ Give positive feedback when a business removes unnecessary packaging
For someone who buys sushi once every few months, declining one soy fish may feel insignificant. Across thousands of takeaway meals, however, designing out the item is a very different proposition.
What does this have to do with Plastic Free July?
Plastic Free July can easily become a parade of personal swaps: remember your cup, pack your cutlery, carry a container and never forget a bag.
Those habits can be worthwhile, but the soy sauce fish story shows why broader change matters too.
An individual can refuse one plastic fish.
A business can stop automatically placing one in every order.
A supplier can redesign the packaging.
A government can remove millions of difficult-to-recycle items from circulation.
South Australia’s ban is small in physical scale, but revealing in what it asks us to consider:
How many other pieces of packaging are produced simply because that is how things have always been done?
Plastic Free July is not about getting every decision right. It is a chance to look more closely at the systems around us and support changes that make the lower-waste choice normal, practical and accessible.
For more ideas beyond the soy sauce fish, explore our guide to plastic waste-free takeaway, including simple ways to avoid disposable containers, cutlery, cups and condiment packaging.
A small fish and a bigger shift
The sushi soy sauce fish is memorable because it is tiny, familiar and slightly playful. Many of us have used them for years without giving the packaging another thought.
That does not make anyone careless. It shows how thoroughly single-use plastic has been built into ordinary routines.
South Australia has decided that this particular item no longer makes sense. New South Wales intends to follow a different path by requiring small condiment packaging to be recyclable by the end of 2030.
Elsewhere, businesses and customers can begin making the change before a ban or redesign requirement demands it.
Perhaps that is the useful lesson hiding inside the little fish.
We do not need to solve plastic pollution during one lunch break. We can start by questioning the objects we use for a few seconds and leave behind for much longer.
Frequently asked questions
What are the little soy sauce fish called?
People commonly call them soy sauce fish, soy fish, sushi soy sauce fish, little plastic fish or fish-shaped soy sauce containers. South Australian rules refer more broadly to plastic soy sauce containers with a lid, cap or stopper.
When were soy sauce fish banned in South Australia?
The ban began on 1 September 2025. It applies to pre-filled plastic soy sauce containers holding less than 30 millilitres, including fish-shaped and small rectangular containers.
Are sushi soy sauce fish banned in Victoria?
No specific statewide ban on soy sauce fish is currently in force in Victoria. Rules differ between Australian states and territories and may change in the future.
Are soy sauce fish banned in Queensland?
No specific statewide ban on plastic soy sauce fish is currently in force in Queensland.
Are soy sauce fish banned in New South Wales?
Not yet. NSW plans to require single-serve condiment packages to be recyclable by the end of 2030. Soy sauce fish that remain too small for recycling systems will need to be redesigned or phased out.
Are soy sauce fish recyclable in Australia?
Generally, no. Although the plastic itself may technically be recyclable, the containers are too small to be reliably captured by most sorting equipment and may contain leftover sauce. As a result, they are unlikely to be successfully recycled through household kerbside recycling.
Why can’t soy sauce fish go in household recycling?
They are too small to be reliably captured by sorting equipment and may contain leftover soy sauce. They are therefore likely to be rejected, sent to landfill or escape into the environment.
Are soy sauce sachets better than plastic fish?
They may use less material than rigid plastic fish, but most are still single-use plastic and difficult to recycle. A refillable bottle or shared dispenser avoids individual packaging altogether.
What is the most sustainable way to serve soy sauce?
For people eating in, a refillable bottle or dispenser is generally the simplest low-waste option. For takeaway, businesses can ask whether soy sauce is needed rather than including it automatically.
Related reads from Biome
Simple ways to avoid disposable containers, cups, cutlery and packaging when ordering food to go.
The Ultimate Plastic-Free Swaps Guide
Ready for your next swap? Explore practical ways to reduce plastic throughout your home and everyday routine.
Successful Plastic Free July Tips
Realistic ideas to help you reduce plastic without attempting to change everything at once.
