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Compost Booster

Speed up your composting process and turn kitchen and garden waste into garden gold with this powerful compost accelerator, packed with live microbes and beneficial bacteria.

This all-natural tonic features a concentrated formula of lactobacillus bacteria that rapidly decompose organic material, helping you create rich, healthy compost faster.

Whether you’re managing a backyard compost bin, a hot or cold pile, or using a tumbler, this accelerator will give your compost system the boost it needs.

Perfect For

  • Traditional compost piles
  • Compost tumblers and bays
  • Grass clippings, food scraps, leaves and other green materials
  • Brown materials like cardboard, paper and dry leaves
  • Worm farms and worm towers

Why It Works

  • Contains live lactobacillus bacteria that rapidly accelerate decomposition
  • Supports microbial activity to produce nutrient-rich compost
  • Scientifically tested and safe for pets, wildlife, and soil organisms
  • Reduces composting time and creates healthier end compost
  • One ¼ cup (diluted in 1 L water) activates up to 1 m³ of compost

How to Use

  • Simply dilute with water and spray over compost whenever new material is added
  • Especially effective when adding nitrogen-rich “green” waste like food scraps and grass clippings
  • Use to kickstart inactive piles or support ongoing composting systems
  • Suitable for hot or cold composting systems, tumblers, and worm farms
  • For fermentative composting, we recommend the SPICE (Static Pile Inoculated Compost Extension) method

Sustainability

Made at Food2Soil HQ from 100% natural ingredients, this compost accelerator is safe for pets, pollinators, wildlife, and the entire ecosystem. It helps recycle organic waste into valuable fertiliser for your soil, reducing landfill and supporting a healthier planet.

Bundle and Value

Available in two sizes — share with friends and save on shipping. Pair with our Live Worms Starter Pack for even faster, richer composting, or explore more in our Soil Health and Biofertiliser collections. For combined savings, see Bundles or browse All Products.

Frequently Asked Questions

Q: How do I use the compost accelerator?
A: Dilute ¼ cup in 1 L of water and spray evenly over compost whenever you add new material.

Q: Can I use this in a compost tumbler?
A: Yes, it works well in tumblers, bins, and bays, helping to keep composting systems active and efficient.

Q: Is it safe for pets and wildlife?
A: Yes, it is made from 100% natural ingredients and is safe for pets, pollinators, and all soil organisms.

Q: What makes this different from other compost activators?
A: It contains live lactobacillus bacteria that actively break down organic matter faster, supporting a more diverse microbial ecosystem.

Q: How quickly will it improve my compost?
A: Results depend on your system, but many users notice a difference within weeks as piles heat up and decompose more rapidly.

Q: Can I use it in worm farms?
A: Yes, it is safe to use in worm farms and worm towers, helping microbes and worms work together for faster composting.

Q: Does it work in cold climates?
A: Yes, although composting naturally slows in cold conditions, the microbes in this accelerator help maintain steady decomposition year-round.

$56.95 AUD
Tax included. Shipping calculated at checkout.

The power of live microbes

  • Contains all key nutrients plants need to thrive

    Food2Soil is the only fertiliser you'll ever need! High in potassium and balanced with nitrogen and phosphorous, plus other essential nutrients too.

  • Live microbes help plants grow healthier & faster

    Our unique fermentation process means Food2Soil is alive with microbes. Because just like the human gut, soil and plants need microbes to flourish.

  • Proven to improve soil health in just minutes

    Live microbes have an immediate effect on effect soil health. Tests by leading microbiologists show 50% better plant growth compared to liquid seaweed products.

  • 100% natural — safe for bees, pets & wildlife

    Made entirely from fermented food and coffee waste, Food2Soil contains no nasties. It won't burn or overdose your plants and isn't toxic to you or your environment.

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A photo of Food2Soil All-Purpose Biofertiliser in front of a thriving organi vegetable garden.

Helping reduce the 7.6 million tonnes of food waste dumped into Australian landfills each year 🙌

Customer Reviews

Based on 2 reviews
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B
Boyd Lees
Restored my soil. No more chemical fertilisers

I have now replaced my regular application of chemical fertilisers on my garden with Food2Soil biostimulant. My soil biodiversity, particularly worms and soil organic matter is fantastic.
Great to know food waste is returned to the soil and not landfill.

Thank you for your review!

F
Felix MacNeill
Very Impressed

This is a really effective product! I make a lot of compost but am still stuck with using compost bins which were only ever okay previously - with Food2Soil compost boost the results are far quicker and better quality. I strongly recommend this stuff!

User picture User picture User picture

High-strength liquid concentrate

Food2Soil is designed to be diluted — a little goes a long way! For a standard 9-litre watering can, add 90ml (about 4.5 tablespoons) of Food2Soil. This will cover at least 6m2 of your garden.

See Detailed Application Chart
  • An image of healthy organic lettuce growing in a veggie patch, with an 'Australia' outlined graphic in white placed over the top to signify 'Australian made'.

    Locally made on Ngunnawal country — Canberra region, Australia

  • Food2Soil's female founders and directors, Josie Grenfell and Annabel Schweiger.

    Women-owned and directed business

  • A photo of a hand holding rich soil, with a white B Coporation logo placed over the top.

    Certified BCorp, meeting high social and environmental standards 

  • A photo of Australian native tree foliage with a white graphic of a tree placed over the top, indicating that 1% of profits are donated to Greening Australia

    1% of profits donated to Greening Australia's ecosystem restoration projects

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Frequently Asked Questions

How does this natural compost accelerator work to speed up the decomposition process?

Food2Soil’s Compost Booster acts as a natural compost activator by introducing live beneficial microbes, predominantly lactobacillus bacteria, into your compost system. These microbes accelerate the decomposition process by breaking down organic material more quickly and efficiently. Whether you’re using a compost bin, compost pile, composter, or compost tumbler, this natural compost accelerator helps transform food scraps, grass clippings, and garden waste into nutrient-rich compost faster. By maintaining the right balance of nitrogen, carbon and moisture and improving microbial activity with Compost Booster it creates the perfect environment for making your own compost at home.

How do I use this compost accelerator in my compost bin, composter, or compost pile?

Using Compost Booster is simple. Dilute ¼ cup of the concentrated formula with 1 litre of water and spray it evenly across your compost bin, compost pile, or composter each time you add a new layer of organic material (¼ cup covers 1 m³ of material to be composted, so a little goes a long way!) This ensures that beneficial microbes are distributed throughout your compost, activating the decomposition process every time you add fresh ingredients. Whether you’re composting food scraps, grass clippings, leaves, or other organic matter, regular application keeps the microbial community thriving and speeds up composting. Compost Booster works well in both hot and cold composting systems, static piles, and even in fermentative composting methods like the SPICE (Static Pile Inoculated Compost Extension) method.

Can I use Compost Booster as a compost starter or activator in a new compost pile?

Yes! Compost Booster is an excellent compost starter for new piles, compost bins, or compost tumblers. When starting a new compost system, adding Compost Booster introduces an instant population of beneficial bacteria to kick-start the decomposition process. This is especially useful if your compost pile is low in microbial activity or if you’re starting fresh with a mix of nitrogen-rich (green) and carbon-rich (brown) materials. By using Compost Booster as both a compost starter and activator, you can reduce the time it takes to create natural compost and get your garden beds enriched sooner.

Is Compost Booster safe for worm farms, worm towers, pets, wildlife, and beneficial soil organisms?

Absolutely. Compost Booster is made from 100% natural ingredients and contains no harmful chemicals, making it safe for use in worm farms, worm towers, and compost systems that include worms. Fun fact: worms are eating microorganisms on organic material! It’s also safe for pets, wildlife, and all beneficial soil organisms. You can confidently use Compost Booster alongside a compost aerator or other composting tools without risking harm to your compost ecosystem. It’s designed to work in harmony with natural decomposition processes and living organisms.

How quickly will my compost decompose when using this compost accelerator, and do I still need to turn it?

The speed of decomposition depends on factors such as temperature, the ratio of nitrogen to carbon materials, moisture levels, and aeration. Compost Booster accelerates decomposition by maintaining active microbial populations, helping to break down organic matter faster than composting without an activator. For best results, it’s recommended to turn your compost regularly using a compost aerator or garden fork to improve airflow and maintain aerobic conditions. However, Compost Booster also benefits “lazy composters” who may not turn their pile often, as the microbes continue working even in less-than-ideal conditions. You’ll notice quicker decomposition and fewer issues with slow, inactive piles.

Does Compost Booster help reduce odour in my compost bin or compost pile?

Yes! Compost Booster supports a healthy microbial balance that prevents anaerobic conditions—the main cause of unpleasant odours in compost bins and piles. By fostering aerobic decomposition, it helps keep your compost smelling earthy and fresh rather than foul. Regular application of this compost accelerator can minimise odour issues, even in dense or wet compost piles, making composting a more pleasant experience.

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