---
product_id: 6270908
title: "Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler"
brand: "jora composters"
price: "€ 4096.16"
currency: EUR
in_stock: true
reviews_count: 11
category: "Jora Composters"
url: https://www.desertcart.hr/products/6270908-jora-composter-jk-400-high-capacity-rotating-compost-tumbler-13
store_origin: HR
region: Croatia
---

# Dual chamber rotation 160°F+ heat retention 106 gal capacity Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler

**Brand:** jora composters
**Price:** € 4096.16
**Availability:** ✅ In Stock

## Summary

> ♻️ Turn your kitchen scraps into garden gold with effortless, high-capacity composting!

## Quick Answers

- **What is this?** Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler by jora composters
- **How much does it cost?** € 4096.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/6270908-jora-composter-jk-400-high-capacity-rotating-compost-tumbler-13)

## Best For

- jora composters enthusiasts

## Why This Product

- Trusted jora composters brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Maximize Your Green Impact:** Dual chambers let you compost continuously—fill one while the other matures, ensuring zero downtime.
- • **Turn Waste Into Gold Weekly:** Handles up to 21 gallons per week—perfect for busy professionals committed to eco-friendly living.
- • **Backyard-Ready & Built to Last:** Powder-coated steel and a rock-solid frame deliver durability and style that complements your outdoor space.
- • **Effortless Aeration for Faster Results:** Strategic side vents introduce oxygen naturally, supercharging decomposition and reducing odors.
- • **Swedish Engineering Meets Sustainability:** Robust galvanized steel with food-grade insulation accelerates composting by maintaining optimal heat above 160°F.

## Overview

The Jora Composter JK 400 is a premium dual-chamber rotating compost tumbler designed for high-volume outdoor composting. With a 106-gallon capacity and insulated galvanized steel construction, it maintains internal temperatures above 160°F to speed up decomposition. Its innovative side vents ensure optimal airflow, while the durable powder-coated frame offers stability and weather resistance. Ideal for eco-conscious professionals, it processes 13-21 gallons of organic waste weekly, enabling continuous composting with minimal effort.

## Description

desertcart.com : Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler : Outdoor Composting Bins : Home & Kitchen

Review: A Very Solid, Well-Engineered Product. Excellent Swedish Engineering -- Enough Said. Assembly Required. - This is a really solid, well-designed piece of equipment. I was concerned about the stability of the steel tubing stand, but it is rock-solid when assembled, thanks to the cross-bracing on the bottom and back side of the stand. The materials used appear to be very high quality. The bolts are stainless steel, and all the metal tubing appears to be as well. The main drum is made of galvanzied steel sheets that have been powder coated (a low-visibility sage green color). The handles are solid molded plastic, and are pre-attached to the side panels. Not all side panels have handles on them, so pay attention to which panel goes in which location while you are assembling the unit. The compost tumbler was shipped and delivered much faster than the "advertised" time -- a Fedex Ground truck showed up at the door two days after I ordered, a pleasant surprise. It comes in two large boxes, and everything is double-boxed to prevent damage during shipment. Assembly instructions are sparse, with a number of small illustrations and almost no text. The manufacturer has an online video to guide assembly. I found it unnecessary. If you pay attention to the drawings, the unit goes together well. The assembly instructions strongly advise having two persons available for the assembly job. This is good advise, although I was able to do the entire job myself, using one tool (a 3 foot pipe clamp) that is not specified in the assembly manual. Assembly is straightforward and fairly easy until the last step, which is to assemble the 8 sides onto the two end panels to make the 'barrel." The side panels are lined with stiff plastic foam (insulation to keep the compost mixture warm as it "cooks"), and that foam must be compressed with a good deal of pressure to bring the pre-drilled screw holes into alignment for each panel. (Two stainless steel M3.5-15 sheet metal screws are used to hold each end of each panel in place.) I found the assembly went much easier if I used a pipe clamp (a woodworking tool) to hold the side panel in place while inserting the screws. It's tempting to use a power drill with a Phillips-head bit to drive those sheet metal screws into their holes. Don't do it. Stainless steel is not as hard and strong as carbon steel, and it is very easy to strip the heads on the screws with a power driver. I stripped several screw heads in the process and had to buy replacements. The only other "trick" in assembly is used in attaching the two end panels to the hexagonal sheets of foam that go on the ends, and similar assembly of two sheets of solid plastic to form a "sandwich" with the foam sheet in the center partition that separates the two sides of the composter. These sub-assemblies are held together with nylon bolts. There are no holes in the foam sheets (about 1.5" thick) so you have to push each bolt through the foam. I found it easier to push the bolt part way through one direction, then remove it and push it all the way through the other side. One could use a power drill, but it is not necessary. The sparse assembly instructions assume a certain basic knowledge of mechanical systems. They do not, for example, say which size wrench to use for which bolts.The 9/16" wrench is used on the head of the six metric bolts that attach the cross-braces. The 1/2" wrench is used on other nuts. (Metric equivalent wrenches would be 14 mm and 13 mm.) The instructions also don't describe the orientation of the self-locking (aircraft type) nuts that are supplied for application to the six M8 bolts and two long steel shafts at the top and bottom rear of the unit's stand. If you are not familiar with these nuts, the plastic "rim" that is visible on one side of the nut points out toward the thread end of the bolt (away from the head). Read the assembly instructions carefully and make sure all the parts are in their correct position before bolting things together, and you'll do well wih assembly. At the time of this review, I haven't actually started composting with this product, but it certainly looks like it will do the job well. The heavy duty components and thick foam insulation should help to retain heat in the composter and speed the composting process.
Review: Works great. Assembly was somewhat challenging - Works great. Assembly was somewhat challenging, but not too much so (make sure to watch video on YouTube first). Composts very well, minimal leaking, takes about 4-5 weeks for a chamber to ripen fully. Terrific solution for kitchen waste. We bought two, so in winter, when composting will slow down, we will not run out of space. Built well, solid and sturdy. Very, very happy with the purchase. Update after almost three years of use: Well, these composters are one of the best thing we ever bought. We live in climate zone 5a, so winters are somewhat harsh and rather snowy. Our composters work year round without fail. All kitchen scraps, food leftovers, some (but far from all) garden waste, paper towels and napkins are now turned into prime quality compost. There is minimal leakage from the bottom of the barrels, but since they are located outdoors, it is not an issue. In winter we can see steam rising from the venting holes, that is how hot it gets inside the chambers. I have been playing with different proportions of the brown/green waste. Sometimes I add peat moss, sometimes alfalfa (buy it in the farm store, where they sell it as food for rabbits), sometimes just shredded paper (checks, documents etc) from our shredder, sometimes shredded leaves. It always, always works. A couple of times felt that it would be beneficial to use compost accelerator. Just so the chambers get somewhat of a "do over". Used it, again results were great. We are now never without compost. With four separate chambers in different stages of ripening I always have some compost ready to add into the planting hole or just spread around. The paint on the composters faded a little bit in the sun, but they still look pristine. Rain washes them, wind dries them off, no other maintenance is required. Also worth mentioning. I have two old metal wheelbarrows (got one at a yard sale for $1 and another came with the house). They are beaten up, but I will never get rid of them, since they fit perfectly underneath the composters for emptying. These wheelbarrows have low profile and are entirely made out of metal. I just roll one of them underneath the chamber to be emptied (right to the cross on the back), open the chamber door and rotate the composter. Works like a charm. It sounds ridiculous, but these composters now are one of my most prized possessions.... Yeah, I know, gardeners are nuts..... Update after 7 years of use: Still using this composters and still loving them! Came to check if these were still available beacause I just recommended them to someone. Was astounded to see a negative review (with photos). I do not know who these people are, I do not know what their deal is, but their composters had to be fully submerged in acid to look like they do. Here are pictures of our composters, located outside (no protection) in zone 5, after seven years of use. I rely heavily on reviews when purchasing new items, hopefully this will help.

## Features

- Time Saver - This tumbler composter is constructed for ease of use and simplicity of rotation. The Jora Composter acts as a compost turner which is simply turned by hand whenever waste is put in. The compost bin outdoor tumbler is divided into two chambers. While one compost container is being filled, the compost in the other chamber matures.
- Incredibly Well Built - Unlike most outdoor composting bins it is the stable, food grade non-toxic insulation in the Jora backyard composter which allows the temperatures to rise up to higher than 160 degrees F, resulting in quick and efficient composting.
- High Volume - The JK 400 is a large compost bin with a volume of up to 106 gallons and a capacity of 13-4 gallons a week. Keep our composter outdoor bin in a convenient place outside where you can easily dispose of waste in an efficient, environmentally friendly manner.
- Allows Air Into Mixture - The Jora Composter is one of the few compost bins that has side vents allowing a flow of oxygen into the compost bin. The side vents of the compost barrel, along with kitchen waste (green) and a carbon source (brown), will result in a successful compost.
- Attractive Design - Having compost bins outdoor is easy and convenient, and the Jora Composter was designed to bring that convenience to our customers. This compost machine is made from galvanized steel to be more durable, longer-lasting, and attractive in your backyard.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006AV03PA |
| Best Sellers Rank | #100,030 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #55 in Outdoor Composting Bins |
| Brand | Jora Composters |
| Brand Name | Jora Composters |
| Capacity | 106 gallons |
| Color | Green |
| Customer Reviews | 4.2 out of 5 stars 516 Reviews |
| Item Dimensions L x W x H | 44"L x 52"W x 28"H |
| Item Weight | 150 pounds |
| Manufacturer | Jora Composters |
| Manufacturer Part Number | JK 400 |
| Material | Metal |
| Material Type | Metal |
| Model Number | JK 400 |
| Product Dimensions | 44"L x 52"W x 28"H |
| Shape | Octagonal |
| UPC | 193802307757 013964468601 |

## Product Details

- **Brand:** Jora Composters
- **Capacity:** 70 Gallons
- **Color:** Green
- **Item Weight:** 52 Pounds
- **Manufacturer:** Jora Composter
- **Material:** Metal
- **Number of Items:** 1
- **Product Dimensions:** 44.5"L x 28"W x 50"H
- **Shape:** tumbler
- **UPC:** 013964468595

## Images

![Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler - Image 1](https://m.media-amazon.com/images/I/613+4vxc8vL.jpg)
![Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler - Image 2](https://m.media-amazon.com/images/I/51r8TSMb0vL.jpg)
![Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler - Image 3](https://m.media-amazon.com/images/I/71GDVEon6cL.jpg)
![Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler - Image 4](https://m.media-amazon.com/images/I/41GtpwPTYrL.jpg)
![Jora Composter JK 400 - High Capacity Rotating Compost Tumbler - 13-21 Gal/Week - Heat Generating, Insulated Design - Outdoor Compost Bin Tumbler - Dual Chamber Compost Tumbler - Image 5](https://m.media-amazon.com/images/I/81VYo20Tn8L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What is the clearance between the ground and the tumbler? Enough room for a wheelbarrow?**
A: Aaron, the clearance between the absolute bottom edge and the ground is 20 inches.  That would assume the you intend to pour the contents straight down.  The clearance from the bottom edge of the panel with the door, assuming your wheelbarrow is along side or partly under the tumbler is 30 inches.  I find this perfectly reasonable because I do not empty all the contents out at one time.  In fact, not so different from a "starter" in making sour dough bread, it is useful to leave some of the contents in the tumbler.

**Q: Has anyone placed the Joraform in a garage or shed indoors?  Would it smell too much to do so?**
A: I wish I had room in my garage or shed for mine. I have mine on my back patio and don't have any issues with odor whatsoever. I don't think it is a matter of smell at all. You may get some flies and gnats though. Just a part of composting. If it does get smelly, add some wood chips or shredded cardboard. You have too much "green matter". It is really best to mix a full load at a time so you get the right mix. If you want to continue adding kitchen scraps, start with at least 80% browns, and add the greens as you go. Keep it moist, but not wet.

**Q: Given that the composter is insulated, how important is the placement within the yard? I'd rather place it in my side yard but it gets less sun...**
A: I read that I should place the composter in a shadier part of the yard. I got my composter this last winter and located it on the north side of the house. This is a little used area so it was as much for aesthetics as it was for advise. Anyway, our winters are pretty severe. I am in a zone 5. It got down past zero this year. I did not notice much composting action until spring. I never tried the hot water bottle trick, but I did add some compost starter when I got desperate for something to happen. As soon as the weather warmed up, this composter took off and I have one side that I am using on the garden already and the other side is already halfway done. I am very happy with the composter and don't blame it for not being too effective in the winter. If I had it to do over again, I might put the composter on the sunny side of the house, but then it would bake in the summer!

**Q: will this model make compost tea**
A: I don't think it does purposely.  However, I placed a mixing tub underneath it and it does drip compost tea.  Rain mixes with it and you develop even more.  My answer is not scientific and I don 't know how strong the tea is.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Very Solid, Well-Engineered Product. Excellent Swedish Engineering -- Enough Said. Assembly Required.
*by L***S on January 16, 2017*

This is a really solid, well-designed piece of equipment. I was concerned about the stability of the steel tubing stand, but it is rock-solid when assembled, thanks to the cross-bracing on the bottom and back side of the stand. The materials used appear to be very high quality. The bolts are stainless steel, and all the metal tubing appears to be as well. The main drum is made of galvanzied steel sheets that have been powder coated (a low-visibility sage green color). The handles are solid molded plastic, and are pre-attached to the side panels. Not all side panels have handles on them, so pay attention to which panel goes in which location while you are assembling the unit. The compost tumbler was shipped and delivered much faster than the "advertised" time -- a Fedex Ground truck showed up at the door two days after I ordered, a pleasant surprise. It comes in two large boxes, and everything is double-boxed to prevent damage during shipment. Assembly instructions are sparse, with a number of small illustrations and almost no text. The manufacturer has an online video to guide assembly. I found it unnecessary. If you pay attention to the drawings, the unit goes together well. The assembly instructions strongly advise having two persons available for the assembly job. This is good advise, although I was able to do the entire job myself, using one tool (a 3 foot pipe clamp) that is not specified in the assembly manual. Assembly is straightforward and fairly easy until the last step, which is to assemble the 8 sides onto the two end panels to make the 'barrel." The side panels are lined with stiff plastic foam (insulation to keep the compost mixture warm as it "cooks"), and that foam must be compressed with a good deal of pressure to bring the pre-drilled screw holes into alignment for each panel. (Two stainless steel M3.5-15 sheet metal screws are used to hold each end of each panel in place.) I found the assembly went much easier if I used a pipe clamp (a woodworking tool) to hold the side panel in place while inserting the screws. It's tempting to use a power drill with a Phillips-head bit to drive those sheet metal screws into their holes. Don't do it. Stainless steel is not as hard and strong as carbon steel, and it is very easy to strip the heads on the screws with a power driver. I stripped several screw heads in the process and had to buy replacements. The only other "trick" in assembly is used in attaching the two end panels to the hexagonal sheets of foam that go on the ends, and similar assembly of two sheets of solid plastic to form a "sandwich" with the foam sheet in the center partition that separates the two sides of the composter. These sub-assemblies are held together with nylon bolts. There are no holes in the foam sheets (about 1.5" thick) so you have to push each bolt through the foam. I found it easier to push the bolt part way through one direction, then remove it and push it all the way through the other side. One could use a power drill, but it is not necessary. The sparse assembly instructions assume a certain basic knowledge of mechanical systems. They do not, for example, say which size wrench to use for which bolts.The 9/16" wrench is used on the head of the six metric bolts that attach the cross-braces. The 1/2" wrench is used on other nuts. (Metric equivalent wrenches would be 14 mm and 13 mm.) The instructions also don't describe the orientation of the self-locking (aircraft type) nuts that are supplied for application to the six M8 bolts and two long steel shafts at the top and bottom rear of the unit's stand. If you are not familiar with these nuts, the plastic "rim" that is visible on one side of the nut points out toward the thread end of the bolt (away from the head). Read the assembly instructions carefully and make sure all the parts are in their correct position before bolting things together, and you'll do well wih assembly. At the time of this review, I haven't actually started composting with this product, but it certainly looks like it will do the job well. The heavy duty components and thick foam insulation should help to retain heat in the composter and speed the composting process.

### ⭐⭐⭐⭐⭐ Works great. Assembly was somewhat challenging
*by V***A on July 15, 2015*

Works great. Assembly was somewhat challenging, but not too much so (make sure to watch video on YouTube first). Composts very well, minimal leaking, takes about 4-5 weeks for a chamber to ripen fully. Terrific solution for kitchen waste. We bought two, so in winter, when composting will slow down, we will not run out of space. Built well, solid and sturdy. Very, very happy with the purchase. Update after almost three years of use: Well, these composters are one of the best thing we ever bought. We live in climate zone 5a, so winters are somewhat harsh and rather snowy. Our composters work year round without fail. All kitchen scraps, food leftovers, some (but far from all) garden waste, paper towels and napkins are now turned into prime quality compost. There is minimal leakage from the bottom of the barrels, but since they are located outdoors, it is not an issue. In winter we can see steam rising from the venting holes, that is how hot it gets inside the chambers. I have been playing with different proportions of the brown/green waste. Sometimes I add peat moss, sometimes alfalfa (buy it in the farm store, where they sell it as food for rabbits), sometimes just shredded paper (checks, documents etc) from our shredder, sometimes shredded leaves. It always, always works. A couple of times felt that it would be beneficial to use compost accelerator. Just so the chambers get somewhat of a "do over". Used it, again results were great. We are now never without compost. With four separate chambers in different stages of ripening I always have some compost ready to add into the planting hole or just spread around. The paint on the composters faded a little bit in the sun, but they still look pristine. Rain washes them, wind dries them off, no other maintenance is required. Also worth mentioning. I have two old metal wheelbarrows (got one at a yard sale for $1 and another came with the house). They are beaten up, but I will never get rid of them, since they fit perfectly underneath the composters for emptying. These wheelbarrows have low profile and are entirely made out of metal. I just roll one of them underneath the chamber to be emptied (right to the cross on the back), open the chamber door and rotate the composter. Works like a charm. It sounds ridiculous, but these composters now are one of my most prized possessions.... Yeah, I know, gardeners are nuts..... Update after 7 years of use: Still using this composters and still loving them! Came to check if these were still available beacause I just recommended them to someone. Was astounded to see a negative review (with photos). I do not know who these people are, I do not know what their deal is, but their composters had to be fully submerged in acid to look like they do. Here are pictures of our composters, located outside (no protection) in zone 5, after seven years of use. I rely heavily on reviews when purchasing new items, hopefully this will help.

### ⭐⭐⭐⭐ Not an easy screw.
*by R***A on October 5, 2020*

Well, I finally got a compost tumbler. After much research (I originally wanted a mantis) I found that most people using a tumbler preferred the Joraform. It looks nice, is sturdy, well made. Why not? I don’t spend large amounts of money on myself, so I asked for it for Mother’s day. My husband finally ordered it around June. (Late, I know.) It arrived the last day of August. So shipping through Amazon was unexpectedly long. No biggie. I have a lot to learn about composting and wasn’t expecting to get it going in any real significant way this year. It wasn’t until mid September that I had a spare day to assemble it. Since my hubby had a project going outside, I thought we could spend the day doing our projects together, 6 feet apart. (Sounds Covid-y.) He started installing his cold air intake and I started on the Joraform. I actually did as he did and pulled up the assembly video (made by Joraform) on youtube and watched the whole thing first. Then I rewound it and started with each individual step. It was surprisingly easy. I even stopped to help hubby with a fee issues he was having with his project. It finally came time to put the panels on. It all went to hell from here. Now, to be fair, the assembly video said you “may” need a second person to do this. It should have said “You will need a second hand and a 250lb gorilla to accomplish the next several steps.” I managed to place the first panel on my own. It was tough, but I got it and my false sense of accomplishment set in. Then, panel number two. Holy crap. There was no way that thing was going on. The foam inside, while snug, was so tight fitting that there was no way I could line up the holes. I struggled. I got mad. So I stopped and helped hubby finish the cold air intake in exchange for help with the Joraform. We attacked together. Even my husband, with his sexy arms of steel, were no match to push down on the panels to align the holes for the screws. We maneuvered and turned and swapped places with no avail. There was no way of getting enough pressure onto the thing to align it all. I finally suggested we should lay the thing in it’s side and have him and his 200lb self sit on the panels. It mostly worked. I still had to exude large amounts of force to get the screws to go into place. I did not realize, but at one point I was grunting to get the screws in. I glanced at my hubby and he had that silly grin and was raising his eyebrows at me. He mentioned liking the noises I was making. I very quickly made sure there was no more grunting of any kind, but that didn’t stop him from copping a feel every moment he got a chance. I finally told him to finish the screws. (Another cheeky grin from him.) But alas, my weight was no where near enough to press the panels down to align the holes. Fatty had to go back to sitting while I did all the work. We finished a couple hours after I started on it. I think it’s going to be a great tumbler, but don’t order it unless you have a gorilla or a horny hubby to help you assemble the darn thing. Don’t trust the assembly video. It is NOT an easy process. On the upside, he got his cold air intake installed and I got my tumbler assembled and we both got a workout in more than one way!! 😉

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-30*