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Compost accelerator comparison 2026

The best compost accelerators, compared.

Top pick: Moutta bokashi 3 kg Best value: Bio-Composter 500 g – Highest price-within-job score, about £7.98 against a 5 m³ title claim, ahead of the tied Neudorff total. Updated October 2026.

Peter F.
Peter F.Editor

A compost accelerator on amazon.co.uk is not one product. The shelf mixes nitrogen-style heap makers, liquids with no printed dose, microbial starters, bokashi bran for a sealed bucket, and mineral grit whose reviews describe stones. The Royal Horticultural Society says a heap with enough greens, browns, moisture and air usually needs no bought accelerator. Buy a heap maker only when nitrogen is the gap and the heap is already moist and aired. Buy bran only to ferment scraps, then bury them or add them to a heap. Scores follow stars, review volume, listing match, price within the job, and UK review usefulness. The [compost accelerator buying guide](/hub/raised-beds-greenhouses-and-compost/compost-accelerator/sub/compost-accelerator-buying-guide) names the job before the stars. A compost accelerator is a bought addition for a heap, a bin, or a sealed kitchen ferment. Heap powders, such as makers and granules, go on layers of garden waste and raw peelings.

A compost accelerator on amazon.co.uk is not one product.

Moutta bokashi 3 kg

Best overall

Moutta bokashi 3 kg
8.5/10∼ £30

32 products checked · 61 hrs invested · +24,100 readers

9 of 9: Best compost accelerators compared

Swipe for more

1-2 of 9
Best overall
Moutta bokashi 3 kg
Topline Garotta 2 x 3.5 kg
Biorfe bokashi bran 1 kg
Lava-Lite Composter+ 3 litres
Lava-Lite Composter+ 1 litre
Neudorff Radivit 1 kg
Best value
Bio-Composter 500 g
BritishBasics 500 ml
Levington-titled compost maker 3.5 kg
8.5/10
8.9/10
7.8/10
5.8/10
5.6/10
8.0/10
8.0/10
7.6/10
1.1/10
∼ £30
∼ £18
∼ £13
∼ £14
∼ £10
∼ £13
∼ £8
∼ £6
∼ £15
4.6(221)
4.5(151)
4.5(63)
4.5(18)
4.5(18)
4.4(166)
4.1(103)
4.0(190)
–
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The best compost accelerators in detail

Moutta bokashi 3 kg

Rank 1

Moutta bokashi 3 kg

∼£30

Our view

Moutta's 3 kg bag is £29.99, the highest cash price in this set, and the listing places the brand in France. You are told to add a thin layer of about 1–2 tablespoons at the end of each day, squeeze air out of the bag, and store it at room temperature. The amazon.co.uk line is 4.6 from 221 reviews, the highest star average here. In this capture only one review is marked United Kingdom, and that review is positive, so the other comments in the sample are not British shopper opinion. Those non-UK notes mention torn sachets, the cost of using bran often, smell, and a buyer who saw no change after moving from 1 kg to 3 kg. It fits a household that will dose a bokashi bin most days and wants the spoon measure printed before buying. It is a heavy outlay if you are only testing one bucket.

Pros

  • Printed dose of 1–2 tablespoons a day
  • 3 kg, about £10 a kilogram if you finish the bag
  • 4.6 from 221 on the amazon.co.uk aggregate

Cons

  • £29.99 is the highest cash price in the set
  • Only one United Kingdom review in the capture
  • Non-UK notes in the sample mention torn sachets, cost, and no change

Best for: A household that adds food scraps most days and wants 1–2 tablespoons printed on the listing.

Less suitable: A one-off experiment, a brown garden heap, or a buyer who needs several United Kingdom reviews rather than the 221-review aggregate.

Specifications

Model
Moutta bokashi 3 kg
Brand
Moutta
Price
∼£30
Customer rating
4.6/5(221)
Job
Bokashi bran
Pack
3 kg
Dose
1–2 tbsp a day
Food scraps
Yes
Origin
France

Common questions

How much does the listing say to add?

A thin layer of about 1–2 tablespoons on the waste at the end of each day. Store at room temperature and squeeze air out of the bag.

Are the 221 reviews all from the UK?

The 4.6 from 221 is the amazon.co.uk aggregate. In this capture, one review is marked United Kingdom and is positive. The rest of the sample is mostly not UK-located.

What non-UK complaints appear in the sample?

Torn sachets, the cost of using bran often, smell, and one buyer who saw no change after 1 kg and then 3 kg.

Topline Garotta 2 x 3.5 kg

Rank 2

Topline Garotta 2 x 3.5 kg

∼£18

Our view

Two 3.5 kg boxes give you 7 kg of Garotta compost maker for £17.99, about £2.57 a kilogram, and 151 amazon.co.uk reviews average 4.5. Buyers often say the heap warms or breaks down faster once the powder is on garden waste. This listing does not print a gram dose, so the rate has to come from the box that arrives. Split or leaking boxes in transit come up often enough to treat the packaging as a real fault. Rank 2 in Compost Accelerators is a sales position on that shelf, not a laboratory result. It is the top pick here for a brown, moist outdoor heap, and a clumsy buy if you only wanted one small box or a sealed kitchen ferment.

Pros

  • 7 kg of Garotta at £17.99, about £2.57 a kilogram
  • 4.5 from 151 amazon.co.uk reviews, rank 2 in Compost Accelerators
  • Reviewers often describe a warmer or faster heap
  • Sold as a heap or bin powder, not as bran

Cons

  • No gram dose printed on this listing
  • Split or leaking boxes come up in the reviews
  • You have to buy both 3.5 kg boxes

Best for: A moist, aired outdoor heap or dalek that is mostly leaves, woody prunings, and cardboard, where you will read the dose on the box.

Less suitable: A single small box, a sealed bokashi bucket, or a wormery.

Specifications

Model
Topline Garotta 2 x 3.5 kg
Brand
Topline
Price
∼£18
Customer rating
4.5/5(151)
Job
Heap powder
Pack
2 x 3.5 kg

Common questions

How much Garotta does this bundle contain?

The listing is a pack of 2 x 3.5 kg. The parcel weight on the listing is 7.3 kg.

Does this listing print a dose?

No dose is printed in this amazon.co.uk capture. The bullets describe a biological accelerator and a warmer heap.

What do the UK reviews repeat?

151 reviews average 4.5. Buyers praise a faster or warmer heap. Several describe split or leaking boxes in transit.

Biorfe bokashi bran 1 kg

Rank 3

Biorfe bokashi bran 1 kg

∼£13

Our view

Biorfe is 1 kg of wheat bran at £12.95, packed in Turkey, for an indoor or kitchen composter rather than a leaf heap. The listing says the bran makes waste ferment instead of rot, and the instruction is to sprinkle, with no grams given. It claims storage for up to 2 years at room temperature. The amazon.co.uk aggregate is 4.5 from 63 reviews. Only two captured reviews are marked United Kingdom: one reports food fermented in two weeks, with a pickled smell and a dry bag, and the other had not started. A further captured review says the pack arrived with no instructions, so treat this as a small bran refill for a sealed bin, not as a powder for dry leaves.

Pros

  • 1 kg of wheat bran at £12.95
  • Listing describes a ferment, not a leaf-heap powder
  • One UK review reports a two-week ferment and a dry bag

Cons

  • No gram dose, only sprinkle
  • Only two United Kingdom reviews in the capture
  • One captured review says the pack had no instructions

Best for: A flat or kitchen with a sealed bokashi bin and a need for about 1 kg of wheat bran.

Less suitable: A leaf heap, a dalek top-up, or anyone who wants a gram dose and a larger set of UK reviews.

Specifications

Model
Biorfe bokashi bran 1 kg
Brand
biorfe
Price
∼£13
Customer rating
4.5/5(63)
Job
Bokashi bran
Pack
1 kg
Dose
Sprinkle
Food scraps
Yes
Origin
Turkey

Common questions

Is this a compost maker for a leaf heap?

The listing says the bran makes waste ferment instead of rot, and the title points at an indoor or kitchen composter.

What did UK reviewers write?

Two captured reviews are marked United Kingdom. One says food fermented in two weeks with a pickled smell and a dry bag. The other had not started.

Does the listing give a gram dose?

No. It says sprinkle the bran on waste. One captured review says the pack arrived with no instructions.

Lava-Lite Composter+ 3 litres

Rank 4

Lava-Lite Composter+ 3 litres

∼£14

Our view

The 3 litre Lava-Lite bag weighs 2.39 kg and is listed at £14.13. The title says natural beneficial bacteria for compost bins, while UK reviews in this capture describe pale stones and dust, and one reviewer says it is not an accelerator. The same review text is attached to the 1 litre listing, and both show 4.5 from 18, so the stars are one sample on two packs. A review in the file preferred the 3 litre size to the 1 litre on price, and another wanted a scoop. Rank 45 in Compost Accelerators does not identify the contents. Buy it only if you want mineral grit in a bin, and do not buy it as a proven inoculant.

Pros

  • 3 litres at 2.39 kg for £14.13
  • Reviews give a physical description you can check on opening
  • One reviewer preferred this size to the 1 litre bag on price

Cons

  • Title says bacteria; reviews describe stones and dust
  • 4.5 from 18 is shared with the 1 litre listing
  • No dose on the listing

Best for: Someone who has opened the bag, found mineral grit, and wants that grit in a compost bin.

Less suitable: Anyone buying beneficial bacteria, or anyone treating 4.5 from 18 as a separate sample from the 1 litre listing.

Specifications

Model
Lava-Lite Composter+ 3 litres
Brand
LAVA-LITE
Price
∼£14
Customer rating
4.5/5(18)
Job
Uncertain (grit)
Pack
3 litres

Common questions

Is this a bacterial accelerator?

The title says natural beneficial bacteria. UK reviews in the capture describe pale stones and dust, and one says it is not an accelerator.

How big is the bag?

3 litres, item weight 2.39 kg, shelf price £14.13. A review in the file called the 3 litre size better value than 1 litre.

Are these the same reviews as the 1 litre listing?

In this batch the captured review text matches the 1 litre raw file, and both show 4.5 from 18.

Lava-Lite Composter+ 1 litre

Rank 5

Lava-Lite Composter+ 1 litre

∼£10

Our view

This listing is a 1 litre Lava-Lite bag at 750 g and £9.76. The title presents an activator with beneficial bacteria, and the captured reviews, which match the 3 litre file, describe pale grey rocks and dust more like perlite than a culture. The unit-count field says 3,000 ml, which clashes with the 1 litre title and the 750 g weight. Stars are 4.5 from 18, the same line as the larger bag, not a second group of buyers. One review mentioned about £5.99 for a 1 litre bag when it was written, below this capture's £9.76. Buy it only if you already wanted a small bag of grit and can live with the conflicting size fields.

Pros

  • Smaller cash outlay than the 3 litre bag, at £9.76
  • 750 g item weight is printed
  • Reviews match a physical description of grit

Cons

  • Unit count says 3,000 ml against a 1 litre title
  • Same 18 reviews as the 3 litre listing
  • Title and reviews describe different materials

Best for: A small trial of mineral grit, if you already know the reviews describe stones and you can ignore the 3,000 ml unit-count line.

Less suitable: A bacterial accelerator, or a shopper who needs the title, the weight, and the unit count to agree.

Specifications

Model
Lava-Lite Composter+ 1 litre
Brand
LAVA-LITE
Price
∼£10
Customer rating
4.5/5(18)
Job
Uncertain (grit)
Pack
1 litre

Common questions

Is the pack 1 litre or 3 litres?

The title and capacity line say 1 litre and the item weight is 750 g. The unit-count field says 3,000 ml.

What is in the bag, according to reviews?

The same UK review text as the 3 litre file: pale grey rocks and dust, compared with perlite, not a biological inoculant.

What is the shelf price in this capture?

£9.76. A review in the file mentioned about £5.99 for a 1 litre bag at the time of that review.

Neudorff Radivit 1 kg

Rank 6

Neudorff Radivit 1 kg

∼£13

Our view

Neudorff Radivit is a 1 kg tub of granules at £12.53, and the amazon.co.uk aggregate is 4.4 from 166 reviews. The spec field states 15–20 g on each layer of kitchen and soft garden waste. A label-style block pasted inside a captured review puts coverage at about 2 m³ or 30 m² per kilogram and says not to use Radivit with compost worms. None of the 33 captured reviews is marked United Kingdom, so the star average is not a sample of British gardeners in this file. Extra rates for lawn, leaves, and shredded prunings sit only inside that pasted block. It belongs on a garden heap if you can follow the 15–20 g line, and it does not belong in a wormery.

Pros

  • 1 kg at £12.53 with a printed kitchen dose of 15–20 g
  • 4.4 from 166 on the amazon.co.uk aggregate
  • Pasted label text states a wormery warning you can read

Cons

  • No United Kingdom-located review in the 33-review capture
  • Not for compost worms, on that pasted label text
  • Fuller lawn and pruning rates are not a clean spec row

Best for: A garden compost heap of kitchen peelings and soft waste, dosed at 15–20 g a layer, with no worm bin involved.

Less suitable: A wormery, or a buyer who wants UK-located reviews in this capture.

Specifications

Model
Neudorff Radivit 1 kg
Brand
Neudorff
Price
∼£13
Customer rating
4.4/5(166)
Job
Heap granules
Pack
1 kg
Dose
15–20 g/layer
Food scraps
Yes

Common questions

Can it go in a wormery?

A label-style block inside a captured review says not to use Radivit with compost worms. There is no separate spec row for that warning.

What dose is on the listing?

The spec field is a Dutch line for 15–20 g per layer of kitchen and soft garden waste. Fuller layer rates appear only inside that pasted review.

Are there UK reviews in the capture?

The aggregate is 4.4 from 166 on amazon.co.uk. None of the 33 captured reviews is marked United Kingdom.

Bio-Composter 500 g

Rank 7

Bio-Composter 500 g

Our view

The 500 g Bio-Composter pack is £7.98, and the title says that weight covers 5 m³ of mixed waste. amazon.co.uk shows 4.1 from 103 reviews, with rank 21 in Compost Accelerators. No gram-per-layer dose is printed, and the material field says Wood, which does not tell you how to sprinkle a bacterial starter. One UK review says the instructions on the pack were impossible to read and that nothing had happened yet. A separate review says a large pile broke down and that many leatherjackets later turned up in two vegetable beds; that is one account, not an ingredient on the label. On shelf price against the title's coverage figure, it is the best value in this comparison, provided the pack you open states a dose. If it does not, £7.98 is only a cheap unknown.

Pros

  • £7.98, with a title claim of 5 m³ from 500 g
  • 4.1 from 103 reviews
  • Named for kitchen scraps, leaves, and plant matter

Cons

  • No grams-per-layer dose on the listing
  • Material field says Wood
  • One review could not read the instructions
  • One account mentions leatherjackets afterwards, which is not a labelled ingredient

Best for: A large mixed heap where £7.98 against the title's 5 m³ figure is the budget, and the pack you receive shows a readable dose.

Less suitable: Buyers who need grams on the amazon.co.uk page before they pay.

Specifications

Model
Bio-Composter 500 g
Brand
Bioefekts
Price
∼£8
Customer rating
4.1/5(103)
Job
Bacterial starter
Pack
500 g
Food scraps
Yes

Common questions

How much waste does the title say it treats?

The title says 5 m³. The pack weight is 500 g. No dose in grams per layer is in the listing.

What do reviews say about the instructions?

One UK review says the instructions on the pack were impossible to read, and that nothing had happened yet.

What is the leatherjacket comment?

One UK reviewer says a large pile broke down and that they later found many leatherjackets in two vegetable beds. That is one review, not a labelled ingredient.

BritishBasics 500 ml

Rank 8

BritishBasics 500 ml

Our view

This clear 500 ml bottle is £6.21, with the United Kingdom given as the country of origin, and 190 reviews average 4.0. The listing says it speeds heaps and bins from autumn to spring, and it does not print a dose. Reviewers say the bottle never tells you whether to use the liquid neat or diluted, or whether the whole 500 ml is one application. One review calls the result okay but not as good as Garotta, while others say a bin has started or that nothing happened. Rank 7 in Compost Accelerators only records sales on that shelf. A low shelf price does not replace a missing instruction, so leave it until a dose is printed.

Pros

  • Lowest cash price in the set at £6.21
  • 500 ml, country of origin listed as the United Kingdom
  • 190 reviews, the second-largest count here

Cons

  • No dose on the listing or, reviewers say, on the bottle
  • 4.0 average, with reports that nothing happened
  • One review rates it below Garotta

Best for: Only a buyer who can read a neat-or-diluted dose on the bottle that arrives.

Less suitable: Anyone who needs a printed rate before paying, or who is comparing results with Garotta.

Specifications

Model
BritishBasics 500 ml
Brand
BritishBasics
Price
∼£6
Customer rating
4.0/5(190)
Job
Liquid accelerator
Pack
500 ml
Origin
United Kingdom

Common questions

Is a dose printed?

Not in this listing. UK reviews say the bottle does not say whether to use it neat or diluted, or whether the whole bottle is one dose.

Where is it made, according to the listing?

Country of origin is United Kingdom. The bottle size is 500 ml and the item weight is 550 g.

How does it compare with Garotta in the reviews?

One review says it is okay but not as good as Garotta. Others say a bin has started, or that nothing happened.

Levington-titled compost maker 3.5 kg

Rank 9

Levington-titled compost maker 3.5 kg

∼£15

Our view

The title offers a Levington 3.5 kg compost maker at £14.79 in granule form. The brand field reads Fixtures Business & Homewares, the manufacturer line reads Fixtures, and the part number is LevLime7kg, which does not match a 3.5 kg compost-maker name. The unit count is 3,500 g and the origin is given as the United Kingdom. This file has no customer-review line and no review text, so there is no star average to weigh. Dose, system, and food-scrap suitability are all missing. Until the brand, the part number, and at least one review describe the same product, you cannot treat the title as the contents of the parcel.

Pros

  • Shelf price £14.79 is printed
  • Unit count is 3,500 g
  • Origin line says United Kingdom

Cons

  • Brand field says Fixtures while the title says Levington
  • Part number LevLime7kg does not match a 3.5 kg compost-maker title
  • No review line and no review text

Best for: Hold the purchase until the brand field, the part number, and a review sample agree with the Levington title.

Less suitable: Anyone choosing a compost maker from the title alone.

Specifications

Model
Levington-titled compost maker 3.5 kg
Brand
Fixtures Business & Homewares
Price
∼£15
Job
Unclear listing
Pack
3.5 kg
Origin
United Kingdom

Common questions

Who is the brand on this listing?

The title says Levington. The brand field says Fixtures Business & Homewares and the manufacturer says Fixtures.

What is the part number?

LevLime7kg, which does not match a 3.5 kg compost-maker title. The unit count is 3,500 g.

Is there a star rating?

This raw file has no customer-review line and no review text.

How we compared

Nine compost accelerators are on this page. Scores use the amazon.co.uk capture from 15 October 2026. There is no laboratory test. Stars contribute up to 30 points, review volume up to 20, listing match up to 25, price within the job up to 15, and UK review usefulness up to 10. Bran is not scored against heap powder. Lava-Lite's shared 18-review text is counted once per ASIN, not as two samples. Non-UK review text on Moutta, Biorfe and Neudorff is not scored as British opinion.

1

Stars

30%

The amazon.co.uk star rating, converted as a share of 30. A listing with no review line scores 0 on this block.

2

Review volume

20%

A log scale of the amazon.co.uk review count, capped at 20. A count of 0 scores 0. Shared Lava-Lite text is one sample, not two.

3

Listing match

25%

Title, form and reviews should describe one job. A printed dose adds points. A brand clash or a title that disagrees with the reviews deducts.

4

Price within the job

15%

Shelf price against pack size for that job only. Bran is not scored as a cheap heap powder, and grit is not scored as an inoculant.

5

UK review usefulness

10%

Whether the captured reviews are marked United Kingdom and say something specific. Star aggregates stay the amazon.co.uk figures.

Independent review
Last updated: October 2026
8 sources checked

Compost accelerator buying guide

Name the job before you compare stars. Heap powder, a dose-less liquid, bokashi bran and mineral grit are different purchases. Prices on this page are amazon.co.uk captures from 15 October 2026, from about £6.21 to about £29.99.

What is a compost accelerator?

A compost accelerator is a bought addition for a heap, a bin, or a sealed kitchen ferment. On amazon.co.uk that search is not one product. Heap powders, such as Garotta-type makers and Neudorff Radivit granules, go on layers of garden waste and raw peelings. BritishBasics is a 500 ml liquid at about £6.21 that claims to speed heaps and bins and prints no dose. Bio-Composter is 500 g at about £7.98, with a title that says 5 m³ and a material field that says Wood.

Best for

  • A moist, aired heap that is short of greens
  • A sealed bokashi bin that needs bran

Not ideal for

  • A balanced heap that already has greens, browns and air
  • A worm bin, if the product is Neudorff Radivit

Mistakes to avoid

  1. 1

    Bran on a leaf heap, or Garotta in a bucket

    Bokashi bran ferments scraps in a sealed bin. Heap powder goes on garden waste. Swapping them does not speed the other system.

  2. 2

    Copying another brand's grams

    Westland's current Garotta page and older Barrs and Crocus pages do not use the same rate. Neudorff prints 15–20 g per kitchen layer. Do not average those figures onto a bottle that prints nothing.

  3. 3

    Treating grit as bacteria, or Radivit as worm food

    Lava-Lite titles say beneficial bacteria, and the UK reviews describe stones. Neudorff says do not use Radivit with compost worms. A wet, slimy bin needs air and a drier mix, not another dose.

What to weigh up

Name the job

High

Name the job before you compare stars. A brown, slow outdoor heap needs a nitrogen-style maker or more greens. A kitchen bucket for cooked food needs bokashi bran. A wormery must not get Neudorff Radivit. A cold dalek in January is usually a season problem, not a missing bottle. Heap powders in this set are Topline Garotta, two 3.5 kg boxes at about £17.99, and Neudorff Radivit, 1 kg at about £12.53.

Read the dose and the price band

High

Read the dose on the pack you hold. Westland's current Garotta page says 200–250 g on each 30 cm layer and about 4.5 litres of water if the waste is dry. Older Barrs and Crocus pages still say 2–3 tablespoons per square metre on an 8 cm layer. Do not average them. The Topline listing itself does not print a gram dose. Neudorff's spec field states 15–20 g per kitchen layer. Moutta prints 1–2 tablespoons a day. Biorfe says sprinkle.

Which option suits you?

Three typical situations, each with a recommendation from this comparison.

Leaf-heavy allotment heaps

You have a moist, aired bay that is mostly leaves, woody prunings and cardboard. A labelled compost maker, or more grass, fits that gap. Topline Garotta is the top pick for that heap. Bran does not belong on it.

Flats with a sealed bin

You ferment kitchen scraps in a bokashi bucket, then bury them or add them to a heap. Moutta prints 1–2 tablespoons a day. A 7 kg Garotta box is the wrong pack for one kitchen bucket.

Large mixed heaps on a budget

You want the lowest useful shelf price against a stated coverage figure. Bio-Composter is about £7.98, and the title says 500 g covers 5 m³. Use it only if the pack you open shows a readable dose.

Common questions about compost accelerators

Which compost accelerator is the top pick in 2026?
Topline Garotta, two 3.5 kg boxes at about £17.99, is the top pick. It has 4.5 from 151 amazon.co.uk reviews and the highest card score in this set. That score is a listing conversion, not a laboratory result. It fits a brown, moist outdoor heap. The listing does not print a gram dose, and reviewers mention split boxes. It is a poor fit for a sealed bokashi bucket.
How much does a compost accelerator cost?
Kept amazon.co.uk prices in this capture run from about £6.21 to about £29.99. BritishBasics is about £6.21, Bio-Composter about £7.98, and Lava-Lite 1 litre about £9.76. Neudorff is about £12.53, Biorfe about £12.95, and Topline Garotta about £17.99. Moutta, at about £29.99, is the highest cash price. Compare price per kilogram only inside one job. Bran costs more per kilo because it ferments scraps.
Do you need a compost accelerator?
Often no. The Royal Horticultural Society says a heap with enough greens, browns, moisture and air usually needs no bought accelerator, and that lime you add yourself brings no benefit. Buy a heap maker only when nitrogen is the gap and the heap is already moist and aired. Buy bran only to ferment scraps in a sealed bucket. A quiet dalek in January is usually a season problem. An accelerator does not make a small plastic bin hot.
What is the difference between heap powder and bokashi bran?
Heap powder, such as Garotta or Neudorff Radivit granules, goes on layers of garden waste and raw peelings. Bokashi bran, such as Biorfe or Moutta, is for a sealed kitchen bin. The Royal Horticultural Society describes bokashi as about two weeks of ferment, then a trench or a heap, not finished compost. Do not put bran on a leaf heap, and do not put Garotta in a bokashi bucket. Moutta prints 1–2 tablespoons a day.
Can you put cooked food in a home compost heap?
It depends where you are. In England, Scotland and Wales, GOV.UK says household catering waste, including food cooked in animal fat and dairy, may go in a small heap if sheep, cattle, pigs and poultry, including pets, stay off the heap and off ground where that compost is spread. No approval is needed on the same property. Northern Ireland guidance says do not compost meat, fish or dairy at home. Call the council if rats are in the bin.
Is Lava-Lite a bacterial accelerator?
Do not treat it as a proven inoculant. The Lava-Lite titles say natural beneficial bacteria. UK reviews in this capture describe pale stones and dust, more like perlite than a culture. The 1 litre bag is about £9.76 and the 3 litre bag is about £14.13. Both show 4.5 from 18, and the captured review text matches, so the stars are one sample on two packs. Buy either only if you want mineral grit.
Can Neudorff Radivit go in a worm bin?
No. Neudorff says do not use Radivit with compost worms, and a pasted label in a captured review repeats that warning. The 1 kg tub is about £12.53, with 4.4 from 166 reviews on amazon.co.uk. None of the 33 captured reviews is marked United Kingdom. The spec field states 15–20 g on a kitchen layer. See the compost worms comparison if the bin already has worms.
Is the Levington title a Levington compost maker?
Not from this listing. The title says a Levington 3.5 kg compost maker at about £14.79. The brand field says Fixtures, and the part number is LevLime7kg, which does not match that title. The file has no customer-review line and no review text. Until the brand, the part number and a review describe the same product, do not treat the title as the contents of the parcel.

Our verdict

Nine listings do not share one job. Topline Garotta, two 3.5 kg boxes at about £17.99, is the top pick for a brown, moist outdoor heap: 4.5 from 151 amazon.co.uk reviews and the highest card score. The listing still omits a gram dose, and reviews mention split boxes. Bio-Composter, 500 g at about £7.98, is the best value because its price block leads the set, even though the total ties Neudorff Radivit. Bran, liquid and grit stay separate purchases.

Best overall
Moutta bokashi 3 kg

Moutta bokashi 3 kg

View offer
Best value
Bio-Composter 500 g

Bio-Composter 500 g

Highest price-within-job score, about £7.98 against a 5 m³ title claim, ahead of the tied Neudorff total.

View offer

Editorial

Peter F. - Editor, DIY & tools
Editor, DIY & tools
Garden compostRaised beds and greenhousesDIY tools

Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.

Updated: October 2026
8 sources checked

Guides to compost accelerators

Guides on what to look for, how to use a product, and common mistakes.

Related comparisons

Sources

Public UK and manufacturer sources from the research digest, last checked on 15 October 2026.

  1. RHS — Composting (retrieved 15.10.2026)
  2. RHS — Composting through the winter (retrieved 15.10.2026)
  3. RHS — Bokashi (retrieved 15.10.2026)
  4. Garden Organic — How to make compost (retrieved 15.10.2026)
  5. GOV.UK — Animal material in home compost (retrieved 15.10.2026)
  6. nidirect — Garden waste (retrieved 15.10.2026)
  7. Westland — Garotta compost maker (retrieved 15.10.2026)
  8. Neudorff — Radivit (retrieved 15.10.2026)

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