Last reviewed: 22 August 2026
The most common way to damage or disappoint an electric kitchen composter is to treat it like a rubbish disposal. These appliances are designed for food waste, but “food waste” still covers materials with very different hardness, moisture and fibre. The safe answer always starts with the manual for your exact model.
For broader context, see our complete Australian guide to food-waste and composting options.
Related guide: electric kitchen composter buying guide.
Related guide: what to do with finished compost.
Related guide: electric composter versus FOGO.
Foods Soilux is designed to handle
The Soilux LUX-450 manual identifies a broad range of ordinary household foods and kitchen scraps as suitable. Based on the manufacturer guidance, common examples include:
- Fruit and vegetable scraps and peelings
- Eggshells and other soft shells
- Cooked leftovers and plate scrapings
- Bread, rice, pasta and grains
- Meat scraps and suitable fish scraps
- Coffee grounds, coffee filters and tea bags subject to material composition
- Dairy products such as cheese and yoghurt residues
- Some plant and flower material in appropriate amounts
The exact mix matters. A balanced load of mixed scraps generally behaves differently from a bucket filled entirely with very wet fruit or dense fibrous stems.
Can meat go in Soilux?
Yes, suitable meat scraps can be processed according to the manual. Remove hard bones and avoid large rigid pieces that can jam or damage the mechanism. If a piece is unusually large or tough, cut it down before loading.
Can fish go in Soilux?
Suitable fish scraps can be processed, but hard bones and large rigid material should be excluded. High-odour foods also make filter condition and cleaning especially important.
Can eggshells go in Soilux?
Yes. Eggshells are listed among suitable materials. Break unusually large shells up naturally with the other food rather than packing the bucket with one single material type.
Can coffee grounds go in Soilux?
Coffee grounds and filters are included in the manufacturer guidance. Be mindful of non-compostable plastic components in some coffee products and tea bags. If the bag, pod or filter contains plastic, remove that component rather than assuming the whole item is food waste.
Can bread, rice and pasta go in Soilux?
Yes. Bread, rice, pasta, cereals and other grains are within the normal food-scrap range. As with all loads, avoid overfilling the bucket.
What should not go in the LUX-450?
The manual excludes or warns against hard, non-food, excessively wet or mechanically difficult materials. Key examples include:
- Hard bones such as large chicken, beef, pork or lamb bones
- Large hard fruit pits such as avocado, peach, apricot, nectarine or mango stones
- Cooking oils, grease and excess liquids
- Metal, plastic, glass and foil
- Nappies, wipes and hygiene products
- Cigarettes and other non-food material
- Pet waste
- Large amounts of rigid or highly fibrous plant stems unless cut into smaller appropriate pieces
- Any object that is larger than the manufacturer’s recommended piece size or could jam the mixing mechanism
Why excess liquid is a problem
The appliance is designed to remove moisture from food, but that does not make it a liquid disposal. Pouring soups, sauces, oil or standing water into the bucket can extend processing, reduce output quality or interfere with operation. Drain free liquid before adding food where practical.
Why hard bones and pits are different from food scraps
The machine has moving components designed to mix and break down ordinary food. Dense bones and hard stones can resist those components and cause jams or abnormal loads. A FOGO service may accept some hard bones that an electric appliance should not. Product rules and council-bin rules are separate.
Official source: ACT City Services — FOGO accepted materials
How small should food pieces be?
The manual warns against putting very large pieces into the bucket and recommends cutting rigid stems and fibrous vegetables into smaller portions. A useful practical rule is: if the scrap is unusually large, stringy or hard, reduce it before loading rather than testing the motor.
Can you add food while a cycle is running?
Follow the specific Soilux operating instructions and interface. Do not open or interfere with the unit contrary to the safety guidance while it is operating. Plan loads around the product’s intended cycle behaviour rather than treating the unit as an always-open rubbish bin.
How full should the bucket be?
Never exceed the maximum fill guidance or force food down to make more fit. Overloading can interfere with mixing and may cause jams. The LUX-450 has a 4.5-litre bucket, but usable load should follow the marked or manual limit rather than the theoretical brim volume.
A better way to build a load
- Drain free liquid.
- Remove hard bones, pits, plastic, foil and non-food items.
- Cut large fibrous scraps into smaller pieces.
- Use a reasonable mixture of food rather than one extreme material where possible.
- Keep below the maximum load guidance.
- Close the lid and select the appropriate mode according to the Soilux manual.
What about Pet Mode ingredients?
Pet Mode has a different intended use and should follow the certified Soilux Pet Mode instructions and approved ingredient guidance rather than the general composting food-waste list. Do not assume compost-mode scraps are appropriate for pet-feed preparation.
Frequently asked questions
Can I put banana peels in Soilux?
Yes. Fruit peel is a normal food scrap.
Can I put avocado skins in Soilux?
The flesh and skin can be treated as food waste, but remove the large hard avocado pit.
Can I put chicken bones in Soilux?
Hard bones should be kept out. Very soft small bones may be treated differently under manufacturer guidance, but when in doubt remove bone rather than risk the mechanism.
Can I put oil in Soilux?
Do not pour cooking oil or grease into the bucket. Scraps lightly coated from ordinary meals are different from adding free liquid oil.
Can I put garden clippings in Soilux?
The LUX-450 is primarily a kitchen food-waste appliance. Small plant material may be acceptable, but bulk grass, branches and garden waste belong in a suitable garden-organics or composting system.
Where to go next
Once you know what can go inside, the next useful question is what to do with the finished compost. The electric-kitchen-composter buying guide also explains why accepted-food lists should be checked before choosing any model.