compost tea bag
Worth a lookShows low returns (0.7%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Avg price
Incredible$31.76avg listing price — sweet spot $15–$100
Growth
Great+89.8%90-day search growth — must beat 0% to launch
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Review moat
Good781.82avg incumbent reviews — the moat a new listing must climb
Conversion
Good5.9%search→purchase rate — share of searches ending in a sale
Price range
Good$5.58–$149.39cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Bad$40K$40K/yr · 22K searches
According to Flapen's Amazon United States niche tracking, compost tea bag is a $40K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 61/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
compost tea bag market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $32K–$40K
- units × avg price
- Conversion rate
- 5.9%
- Avg BSR
- #685
- Page quality
- 0%
- Prime
- 76%
- Sponsored
- 67%
- Out of stock
- 4.4%
- Avg brand age
- 69 months
- Avg seller age
- 175 days
Competition & brand share
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
18 falling
Sellers
36
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
41%
Top 20: 86%
Open market
19%
- Shappy28%
- TeaLAB26%
- Bag-A-Nut10%
- Bubble Magic9%
- Sustane4%
- HRX Package4%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +89.8% search growth over the last 90 days.Peak months: May, Jun · busiest ÷ quietest = 2.7×
Top compost tea bag search terms
- compost tea bag7K/yr
- compost tea brewer5K/yr
- compost tea aerator3K/yr
- compost tea bags3K/yr
- compost tea kit2K/yr
- tealab450/yr
Top compost tea bag products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Shappy 5 Pieces Compost Tea Bag Pump Strainer Mesh Filter Bag with Drawstring 600 mm for Prevents Clogging During The Straining Process (23 x 16 cm)
Shappy$7.764.5★787 rev
Worm Brew - Compost Tea & Worm Casting Tea Brewer - 5 Gallon Bucket Aerator (Pump Included) D10
Bag-A-Nut$84.184.7★39 rev
Shappy 10 Pieces Compost Tea Bag Pump Strainer Mesh Filter Bag with Drawstring 600 mm for Prevents Clogging During The Straining Process (23 x 16 cm)
Shappy$9.784.5★787 rev
Compost Tea Aerator - The BubbleSnake : 5 Gallon Bucket Aerator
TeaLAB$36.384.6★482 rev
Bubble Magic Compost Tea Bag Infuser Strainer Fine Mesh for 800 Gallon Brewers Plant Nutrients Extractor Make Natural Liquid Fertilizer from Organic Material Large 15.75 x 21.5
Bubble Magic$27.984.3★45 rev
Newest
by launch dateWorm Brew - Compost Tea & Worm Casting Tea Brewer - 5 Gallon Bucket Aerator (Pump Included) D10
Bag-A-Nut$84.1839 rev
FUMAK Aquarium Air Pump with Aluminum Housing Commercial Air Pump with 6-Outlet Air Manifold Pond Aerator Fish Tank Bubbler for Aquarium Pond Hydroponics (650GPH-20W)
FUMAK$30.07484 rev
Instant Compost Tea (5 oz) Probiotic Plant Food Bloom Booster & Yield Booster for Hydroponics & All Gardening Types | Microbial Formula Converts Amino Acids for Enhanced Growth (5 Ounces)
Mighty Plant$18.20515 rev
50pcs No Mess Cold Brew Bags 6x10 inch Disposable Coffee Filter Bag Fine Mesh Brewing Drawstring Pouches for Iced Coffee Hot Tea Herb Spice
HRX Package$7.86691 rev
50pcs No Mess Cold Brew Bags 4x6 inch Disposable Coffee Filter Bag Fine Mesh Brewing Drawstring Pouches for Iced Coffee Hot Tea Herb Spice
HRX Package$5.58863 rev
Trending
90-day click momentum50pcs No Mess Cold Brew Bags 4x6 inch Disposable Coffee Filter Bag Fine Mesh Brewing Drawstring Pouches for Iced Coffee Hot Tea Herb Spice
HRX Package$5.584.6★
Xtreme Gardening Xtreme Tea Brews Compost Tea Kit 2-Pack 80g Pouches Each Brews 5 Gallons Bloom Booster & Yield Booster with Worm Castings & Microbe Food Pack Works with Any Fertilizer Program
Xtreme Gardening$9.784.5★
Shappy 20 Pieces Compost Tea Bag Pump Strainer Mesh Filter Bag with Drawstring 600 mm for Prevents Clogging During The Straining Process (23 x 16 cm)
Shappy$14.804.5★
Compost Tea Filter Bags (5) | Compost Tea Filter Brew Bags | Create Your own enriched Organic Water to Make Your Plants and Garden Thrive!
Squish Strong$13.004.6★
Compost Tea Brew Bag : 400 Micron Nylon Mesh Made To Last in the USA (5 Gallon Bucket Sized (9x14))
TeaLAB$24.974.8★
What buyers say about compost tea bag
What buyers praise and complain about, mined from review topics.What buyers love
“Nice quality and easy to use”
“Easy to use”
“Great size”
“I clean it out thoroughly after each use”
“they are very affordable”
“These are flavor neutral tea bags that also are environmentally good”
“Its seemed to help me grow strong, healthier plants”
“Very nicely made and sturdy”
“Exactly what I needed”
“These disposable tea filter bags are a lifesaver because I like to buy loose tea from a tea store”
What buyers complain about
“the opening is a little small”
“The product has a weird smell to it”
“Low quality”
“Not as strong as T-sacs”
“every time I use them they break open in my tea”
“not natural fibers”
“I HATE cleaning it”
“unfortunately the coffee seems like it doesn't fully escape which leaves my cold brew sort of watered down”
“don't tie well”
“Paper filters to much”
Top return reasons
Common questions
- Is compost tea bag profitable to sell on Amazon United States?
- The niche generates $40K/yr across 33 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +89.8%. Flapen's verdict: Worth a look (61/100).
- How competitive is the compost tea bag niche?
- 18 brands and 36 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in compost tea bag?
- Top complaints mined from reviews: Size-Overall, Smell, Quality-Overall. The return rate is 0.7%.
- When does demand for compost tea bag peak?
- Demand peaks in May–Jun; the busiest month runs 2.7× the quietest.
- What does it cost to enter the compost tea bag niche?
- Listings span $5.58–$149.39; the average listing price is $31.76 (sweet spot $15–$100). The average incumbent carries 782 reviews — the moat a new listing must climb.