Jora JK 400 Insulated Compost Tumbler
- 106 gallons total capacity
- 13-21 gallons per week of input, per the title
- Dual chamber rotating tumbler
- Insulated, heat generating octagonal drum
- 150 pounds, metal construction
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large, insulated metal tumbler for households producing a lot of food and yard waste, but it is heavy and the listing gives few details beyond its size.
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ASIN: B006AV03PAModel: JK 400Category: Composting Bins
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Overview
An insulated octagonal drum split into two chambers is the working core of this Jora compost tumbler. Rotating the drum mixes and aerates the contents, while the insulation holds in the heat the pile generates.
Two separate chambers let one batch cure while fresh scraps go into the other, and the insulated metal drum holds heat to drive breakdown. Detail is thin, though: the listing gives only capacity, size, weight and material, with no assembly, warranty or turning mechanism information.
Who it's for
Suited to a big yard with steady waste from a busy kitchen and garden. Small households and balcony composters will find it oversized and too heavy to reposition.
Pros and cons
- High capacity across two chambers
- Insulated drum holds composting heat
- Rotating drum mixes without forking
- Very heavy to move once placed
- Large footprint needs a dedicated spot
- Warranty and assembly details not listed
Performance notes
Breakdown speed depends on heat and oxygen. The insulated drum holds the warmth that active compost generates, and each turn of the drum brings air into the mix. Splitting input between chambers lets one side finish without fresh scraps restarting it.
Specifications
| Brand | Composters |
|---|---|
| Model | JK 400 |
| Dimensions & fit | |
| Item weight | 150 pounds |
| Item Dimensions L x W x H | 44 × 52 × 28 inches |
| Capacity & performance | |
| Capacity | 106 gallons |
| Construction & materials | |
| Material Type | Metal |
| Color | Green |
| Other details | |
| Shape | Octagonal |
| Weekly input | 13 gallons |
| Chambers | Dual chamber |
Frequently asked questions
How much space does the Jora JK 400 tumbler need?
Listed dimensions are 44" L x 52" W x 28" H, so plan a flat spot at least that size with clearance to turn the drum.
Do I turn the Jora JK 400 by hand?
It is a rotating tumbler, so the drum is turned to mix the compost. The listing does not describe the handle or crank.
Why does the Jora composter have two chambers?
The dual chamber design lets you fill one side while the other finishes, so fresh scraps do not go into a nearly finished batch.
Is the Jora JK 400 plastic?
No. The material is listed as metal.