Compost-It Compost Accelerator/Starter 100g Spout Pack for All Composting Systems, (100% Natural Concentrate)
$20.95
Price: $20.95
(as of Oct 19, 2025 05:54:47 UTC – Details)
From the brand
Biomaster.
Sustainable, safe, affordable, effective.
Natural Waste Solutions
Biomaster products are specifically engineered to produce the most effective natural waste treatment options on the market…
Over 60 different strains mean you have the confidence to know our products work and will keep on working.
Proudly independent and family owned, we don’t have failures – only solutions.
What problem are we solving?
We solve smelly waste problems safely and naturally, from sluggish compost or unhealthy pet waste issues, to smelly septic tanks and clogged grease traps.
What makes our products unique?
We treat organic waste problems safely and naturally without the use of dangerous or toxic chemicals.
Why do we love what we do?
Our products are not only safe for you, your household and your pets – our treatment options will solve your smelly waste problems without any negative effects on plumbing, septic systems, groundwater or the environment.
Biomaster Waste Solutions
Starter and accelerator to create nutrient-rich compost in just 4 weeks
Suitable for all composting systems and worm farms
Over 60 different active ingredients, fast, effective and easy to use
Reduces unpleasant and unhealthy odors, perfect for kitchen scrap bins
Chemical and poison free – safe and natural activator, booster and enhancer
Customers say
Customers find the compost accelerator works quickly and helps speed up food breakdown, making it one of the best products for this purpose. They appreciate its effectiveness as a starter and find it easy to use. However, several customers consider it not a good value for money. The compost breakdown rate receives mixed feedback from customers.
8 reviews for Compost-It Compost Accelerator/Starter 100g Spout Pack for All Composting Systems, (100% Natural Concentrate)
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$20.95
Sandra –
Expensive
Seems to work
Amethystgoddess –
Great
Seems to work great! I started a new compost bin this summer and used this to jump start it. I was surprised at how well it worked!
becky –
Works fantastic
This stuff works great. I was very skeptical but desperate. Have been having problems with my compost taking WAY to long. No longer a problem.
dan mason –
You don’t get much in the bag
This product didn’t work for me. I don’t know if I was doing it the right way who knows.
Jennifer Macke –
Best Stuff Ever!
This stuff works fast in breaking down my compost rotating canisters. When I know Iâm going to need my compost soon, I sprinkle it in, give it several spins with some water and it is completely broken down to black gold within a week.
The Old Coach –
Pricey but Good
Online reviews have placed this as the best product for speed in composting. It is more expensive than other compost accelerators, so it really comes down to whether you need speed or economy.I started my new composter by using this and it did indeed seem to kick things into high gear. I had my first batch in about 3 weeks.
patricia43 –
Product worked…
We had lots of worms. It was a bit pricey for the amount but it worked.
S. Walter –
Great product. Works!
We have two tumblers of compost that we neglected for a year. It’s been four weeks and it is actually starting to look like compost again.What we did:The first time we actually sifted through and broke up any big chunks (there were a lot), then sprinkled the accelerator through a bucket at a time as we loaded it back in. We also thoroughly watered the compost in the tumbler, then spun it around. We did this multiple times until full again.Two weeks later we sprinkled some more through the compost and drenched it again, spinning as we went. At four weeks, it looks really good. I think we’ll have dirt to sift through by the fall.I definitely recommend this.In terms of use – we ordered three packets for our two Costco tumblers (20 gallons each I think) but we have only give through one so far.