6 Best Worm Composters | March 2017

Do you know what "vermicomposting" means? Neither did we. But we do now. It's the process of composting vegetable or food waste using worms. The little wrigglers apparently do a great job of producing worm compost that has reduced levels of contaminants and a high saturation of nutrients. Wanna try it? Then here's a list of worm composters. Skip to the best worm composter on Amazon.
6 Best Worm Composters | March 2017


Overall Rank: 5
Best Mid-Range
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Overall Rank: 1
Best High-End
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Overall Rank: 4
Best Inexpensive
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6
The Nature's Footprint DS4TT 4-tray worm composter features a built-in spigot that makes it easy to collect nutrient-rich compost "tea" for fertilizing flowers or edible plants. In most climates, this composter offers year-round use.
5
The Worm Inn from TWI Global takes a novel approach to worm composting, eschewing the bin design and elevating the setup off the ground. This helps to keep other critters away from food waste, and concentrates "tea" production.
4
Unlike so many worm composters, the WormWatcher Worm Farm Composting DIY Kit actually comes with worms, so once it's set up, there's nothing else to order or buy. There is some work to be done getting the kit ready for use, though.
3
The Worm Factory 360 WF360G worm composter will require only about 15 minutes of weekly maintenance once it is established. Its lid converts to a handy stand, giving you easy access to trays or tools while you harvest the compost.
  • mineral rock dust included
  • comes with 10 year warranty
  • excellent venting systems
Brand Nature's Footprint
Model WF360G
Weight 12.4 pounds
2
The VermiHut 5-Tray Recycled Plastic worm composter can hold up to 1,200 worms in each of its trays, meaning maximum composting efficiency and volume with no shoveling, no sifting, and, overall, minimal work once it is established.
  • high-density polyethylene materials
  • compact and odorless design
  • well-reviewed by users
Brand VermiHut
Model pending
Weight 14 pounds
1
The Squirm Farm Worm Factory 360 worm composting bin kit is a one-stop solution to creating the perfect worm composting setup. It comes with a stacking compost bin, a "worm tea" collector, and an instructional DVD.
  • moisture and ph meter included
  • comes with thermometer
  • can be expanded up to 8 trays
Brand The Squirm Firm
Model pending
Weight 17.8 pounds

What To Look For In A Worm Composter

When searching for a worm composter, there are a few things to keep in mind to ensure the best user experience and that you buy the highest-quality unit. One of the most important aspects to consider is the build quality. A poorly built container on nearly any type of product can be problematic, but when the container is housing thousands of worms and decaying food matter, it is even more important that it not be compromised in any manner.

It is also important to understand whether or not the system will come with worms. Compost requires a specific earthworm called Eisenia fetida, which has a different life-cycle and feeding pattern more conducive to compost than that of the typical earthworm. Where nightcrawlers or earthworms require soil to move through in order to fully live, Eisenia fetida thrives in areas rich in organic matter.

Another thing to consider is where the composter will be used. Most are perfectly designed for a garden or yard, but many can be equally as comfortable on a terrace or balcony. In some cases, people even put their composters directly in their kitchen with no problem, which, of course, requires that one buy a smaller unit that is very well-contained.

If you are one of the many people that know of the beneficial effects of worm tea, which is the liquid created by composting worms, a unit with a spigot to extract this compost tea is a smart idea. Choosing the right model comes down to having a good understanding of your particular needs, and finding a composter that has features which match those needs.

Benefits Of Worm Composters

Worm composter use is on the rise to help reduce the amount of food we waste. The Environmental Protection Agency has found that every single year, 133 million pounds of food is wasted, which is over 30 percent of all the food created in the country. This is a problem for those looking to conserve resources, and it directly impacts the amount of methane released into the atmosphere from landfills. By reducing the amount of food sent to landfills, much of this problem can be corrected. To reduce the amount of food waste, the EPA has set forth some guidelines in a food recovery hierarchy. A key aspect of this list is the use of composting to create nutrient-rich soil amendments out of food scraps. One of the easiest ways to do this is by setting up and utilizing a worm composter.

Many of the hurdles people quote as to why they cannot reduce their food waste by composting simply do not apply to worm composting. In many cases, these are actually the benefits of using a worm composter. For instance, opponents to composting say that the process smells foul. With a closed container worm composter, nothing could be further from the truth. The worms digest food scraps with no turning or rotating, and they do it quickly, so the food does not have time to rot.

People also seem to think that composting attracts rodents and roaches. While this is easily avoided through nuisance proofing, it is still seen as a hurdle. Luckily, worm composting kits are often in closed containers made of durable plastic. Many are also raised off the ground to prevent entry from common pests.

The most used excuse is the difficulty in starting the composting process and keeping it healthy. This argument goes out the window the second one realizes that worm composters themselves are very intuitive and extremely easy to use. If putting food scraps in a bin and closing a lid is too much work, a worm composter is not the right choice. However, after exuding that minimal effort, the worms do all the rest of the work.

Are Worm Composters Better Than Hot Composters?

The conversation of vermicomposting versus hot composting often comes up in very particular circles. When most people think of composting, what they are thinking of is the process of thermophilic, or hot composting. Thermophilic composting is as old as agriculture itself. The process creates heat through the metabolism of the millions of microbes in the compost heap. This self-heating process is enough to drive the temperature above 120 degrees Fahrenheit.

Once this temperature is reached, a new class of bacteria goes to work. These bacteria can withstand the high temperatures needed to help break down food scraps rapidly. Their own metabolic processes take the temperature further; piles often reach 170-180 degrees before running out of food for the bacteria. Once the matter is fully broken down, the bacterial metabolism slows, cooling the pile down and curing the compost into its most usable form. The rich smelling, dark brown to black soil amendment produced is high in soluble nutrients, which can be carried to the cells of plants to help their growth cycle. The basic pros of hot compost are that it kills weed seeds and harmful pathogens, and can break down compost quickly in ideal conditions. The cons are mainly that it is labor intensive, and that heating material can lead to nitrogen loss

With vermicomposting, or worm composting, this same soil amendment is produced with a twist. Namely, that worms are doing most of the composting along with bacteria. Both of the processes help oxidize organic wastes and turn them into nutrients, they just do so differently. Worm composting is a much cooler process, and is considered a continuous approach. Unlike hot compost, which requires composting in batches, worm composting can be added a little at a time; such as adding the food scraps from a meal every day.

Compost created this way is less labor intensive, and the cooler temperatures help to conserve nitrogen better than in hot composters. It also produces the previously mentioned byproduct, worm tea, which can be a beneficial to plants when added to soil. The cons of the system are that it will not kill weed seeds, and that care has to be taken to avoid killing the worms with temperature extremes or too much compost.

Because of the varying benefits, the best choice between the two is quite situational. For instance, in a situation where weeds will be composted, a hot composter will help to kill their seeds. But if it is nitrogen that the user is after, a worm composter is king.



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Last updated: 03/28/2017 | Authorship Information

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