DIY In-Ground Worm Farm Setup Guide

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An in-ground worm farm is a bin or pipe set into the soil so worms can move between the bin and the ground. None of the six products below is built that way. Only the Cozurra is a worm bin, and it is a stacked tray unit that sits above ground.

The other five are kitchen scrap caddies and an outdoor compost bin. They can help with the food waste side of a DIY worm setup, but they are not worm farms, and this guide labels each one for what it is.

Quick answer

If you want a worm bin from this list, the Cozurra 5-tray bin is the only real one, at 26.5 gallons. For collecting scraps in the kitchen, the OXO, Epica, RED FACTOR and Perfnique are countertop bins from 1.3 gallons to 1.75 gallons. The Geobin is an outdoor compost bin, not a worm bin, and its capacity is unclear because the title says 246 gallons and the specification says 216. None of these goes in the ground.

Comparison table

Product	Listed facts	Best fit
Cozurra 5-tray worm bin	26.5 gallons (100L), polypropylene, orange, 29.5 x 26 x 37.5 in, tool set included	Worm composting, indoors or outdoors, above ground
OXO Good Grips compost bin	1.75 gal (6.62 L), plastic, charcoal, 8.3 x 10.15 x 12 in, 0.74 kg	Kitchen scrap collection
Epica kitchen compost bin	1.3 gal, stainless steel, silver, 7.16 x 7.16 x 11 in, charcoal filter	Kitchen scrap collection
RED FACTOR compost bin	5 liters, stainless steel, white, 8.7 x 7.3 x 10.8 in, 1 kg, spare filters	Kitchen scrap collection
Perfnique compost bin	1.3 gal, metal and plastic, cream, 7.5 x 9.9 x 7.9 in, liner and carbon filter	Kitchen scrap collection
Geobin composter	Titled 246 gallons, specification says 216 gallons, plastic, black, expandable	Outdoor compost pile, not worms

The products in detail

Cozurra 5-tray worm compost bin

This is a 5-tray worm composter of 26.5 gallons (100L) with a tool set. It is polypropylene in orange and measures 29.5 x 26 x 37.5 inches. The listing calls it an easy setup worm farm kit for indoor and outdoor vermicomposting.

Who it suits: Someone who wants a real worm bin and has room for a unit about 37.5 inches tall. It stands above ground, so it is a different approach from an in-ground bin.

Pros

The only product here made for worms
Large 26.5 gallon capacity
Tool set included
Listed for indoor and outdoor use

Cons

Not an in-ground design
Footprint of 29.5 x 26 inches needs a clear spot
Worms, bedding and drainage details are not stated

Skip if: you want the bin set into the soil or need something small.

Cozurra 5-tray worm bin on Amazon (affiliate link)

OXO Good Grips Easy-Clean compost bin

This is a kitchen countertop compost bin of 1.75 gallons (6.62 L) in charcoal plastic, measuring 8.3 x 10.15 x 12 inches and weighing 0.74 kg. Listed highlights include locking in odors, a smooth interior and concealing bags.

Who it suits: A cook who wants a plastic countertop caddy to collect scraps before they go to a worm bin or compost pile.

Pros

Largest of the four countertop bins at 1.75 gallons
Smooth interior and easy-clean wording are listed
Light at 0.74 kg

Cons

It is a scrap caddy, not a worm farm
Filter details are not stated

Skip if: you need a bin that actually houses worms.

OXO Good Grips compost bin on Amazon (affiliate link)

Epica kitchen compost bin, 1.3 gallon

This is a 1.3 gallon countertop bin in silver stainless steel, measuring 7.16 x 7.16 x 11 inches. The listing mentions an airtight, leak-resistant lid and a replaceable activated charcoal filter.

Who it suits: Someone with limited counter space who wants a stainless steel scrap caddy with a filter.

Pros

Stainless steel, listed as rust-resistant
Airtight lid and replaceable charcoal filter listed
Small square footprint

Cons

Smaller than the OXO in both capacity and footprint
Not a worm bin

Skip if: you want to make worm compost in the bin itself.

Epica kitchen compost bin on Amazon (affiliate link)

RED FACTOR countertop compost bin, 5 liters

This is a 5 liter stainless steel countertop bin in white, measuring 8.7 x 7.3 x 10.8 inches and weighing 1 kg. The title lists a dual filter system and spare filters, and the model number is KCB-SSE-WM-5L.

Who it suits: A buyer who wants a stainless steel caddy with spare filters in the box.

Pros

Spare filters included according to the title
Dual filter technology listed
Stainless steel body

Cons

At 1 kg it is the heaviest of the countertop bins
Not a worm bin

Skip if: you want a plastic or lighter bin, or a worm farm.

RED FACTOR compost bin on Amazon (affiliate link)

Perfnique 1.3 gallon kitchen compost bin

This is a 1.3 gallon countertop caddy with a lid, made of metal and plastic in cream. It measures 7.5 x 9.9 x 7.9 inches and weighs 0.12 kg. The listing mentions an inner bucket liner and a carbon filter.

Who it suits: Someone who likes a farmhouse look and wants a light caddy with an inner liner.

Pros

Very light at 0.12 kg
Inner bucket liner and carbon filter listed
Low profile at 7.9 inches tall

Cons

Small 1.3 gallon size
Not a worm bin

Skip if: you need large capacity or a worm bin.

Perfnique kitchen compost bin on Amazon (affiliate link)

Geobin expandable compost bin

This is an outdoor and backyard compost bin in black plastic, described as expandable with easy assembly and made in the USA. The title says 246 gallons while the specification says 216 gallons. The listed dimensions of 36.5 x 5 x 5 inches and weight of 7 pounds do not make clear what size it is once set up.

Who it suits: A gardener who wants a large outdoor compost pile enclosure rather than a worm bin.

Pros

Large outdoor capacity, though the exact figure is unclear
Expandable and easy assembly are listed
Warranty against manufacturer defects is listed

Cons

Title and specification disagree on capacity
Setup size is not clear from the listed dimensions
Not a worm farm and not in-ground

Skip if: you need a confirmed capacity or a worm bin.

Geobin compost bin on Amazon (affiliate link)

Buying checklist

Decide whether you want a worm bin, a scrap caddy or a compost pile. They are different products.
If you want worms, check that the product is made for them. Only the Cozurra is.
If you want in-ground, none of these qualifies, so look at the related in-ground guide below.
For caddies, compare capacity (1.3 gal, 1.75 gal, 5 L), filter type and cleaning.
Measure the spot for the Cozurra: 29.5 x 26 x 37.5 inches.
For the Geobin, confirm the capacity on the product page, since 246 and 216 gallons both appear.

FAQ

Is any of these an in-ground worm farm?

No. The Cozurra is a worm bin, but it is a 5-tray unit that stands above ground. The OXO, Epica, RED FACTOR and Perfnique are countertop scrap bins, and the Geobin is an outdoor compost bin.

Which one is a worm bin?

The Cozurra 5-tray worm compost bin, listed at 26.5 gallons (100L) with a tool set. It is described as a worm farm kit for indoor and outdoor vermicomposting.

What is the size difference between the kitchen bins?

The OXO holds 1.75 gallons (6.62 L), the Epica and Perfnique hold 1.3 gallons, and the RED FACTOR holds 5 liters. Each is listed with its own measurements, so compare height and footprint to your counter.

Why do the Geobin title and specification disagree?

The title says 246 gallons and the specification says 216 gallons. The listing used here does not explain the difference, so confirm the number on the product page before you rely on either.

Where can I find an in-ground bin?

See the related guide linked below on in-ground worm bins. This list does not include one.

Closing note

This list does not contain an in-ground worm farm. Use the Cozurra if you want worms above ground, the countertop bins for collecting scraps, and check the Geobin capacity before ordering.

DIY In-Ground Worm Farm: Setup Guide and Key Checks

Quick answer

Comparison table