Home Blog Flow Through Worm Bins – What It Is & How It Works?

Flow Through Worm Bins – What It Is & How It Works?

by Jackson White
Large Scale Worm Farm Design.

A few years back, the use of traditional worm bins was quite common. Things have changed since most gardeners now prefer using flow through worm bins which has more advantages.

This method can help you make finished compost continuously within a short duration. Garden composting with worms is a great technique used to create a product known as vermicompost. This product has a lot of microorganisms that are beneficial to the soil. Through this guide, you will learn everything there is to know regarding continuous flow bins, including their design, how they work, examples, and their merits. Enjoy!

What Are Flow through Worm Bins?

Earthworms may not look attractive to everyone, but they are valuable organisms to gardeners. These can easily convert organic matter into worm castings that fertilize gardens. Instead of using the regular earthworms found in garden soil, you should use compost worms in a worm bin. These are surface feeders that don’t borrow too much into the soil like regular garden earthworms.

During harvesting the vermicompost from regular worm bins, gardeners experience certain challenges. For instance, you may be forced to separate the worms from the finished compost physically. Traditional worm bins leave waterlogged muck and bedding at the bottom of the bin. You have to clean up the mess after harvesting.

Using a flow through worm composting system can make your work easier and prevent you from using so much effort. The design of this worm bin makes the harvesting process more comfortable and convenient. Due to the effectiveness of this worm bin, it is commonly used in homes and businesses. While some people buy such worm bins from the market, other experienced gardeners make them to save some money. You only need plastic containers such as large buckets, garbage can, or wooden boxes to make a flow through worm bin.

In this worm bin, the earthworms live in the decomposing matter and the topsoil. You have to keep on adding food to the top part of the composter to later harvest compost from the bottom part of the system. The system has openings below that are designed for harvesting purposes.

The advantages of using the Hungry Bin Flow through Worm Farm

Continuous Flow Worm Farm  Flow Through Worm Bins

If you have been looking for an easy way to compost food scraps, you should consider getting the Hungry worm bin. This is a good example of a worm farm that many gardeners rely on. It comes in an innovative patented design that makes it highly efficient. This worm bin’s shape encourages worms to quickly access food scraps while the compressed castings remain at the bottom part.

Instead of using black tray farms, you should consider getting the hungry bin since it is well constructed. The manufacturer uses zinc and plastic in its construction to make it more robust than regular worm composters. This worm bin does not contain any heavy metals, and it can last for more than 20 years.

With this bin, you don’t have to keep on touching the worms. Whenever you want to deposit some worm food into the bin, you only need to lift the top lid and do this easily. You don’t have to keep on disturbing the worms. It does not have any heavy trays that you have to keep on moving around. Since it has a large capacity, it allows the worms to process up to 2kgs of waste every day. This bin can therefore process food waste of a family of up to five members. The large volume of this worm bin also prevents the core from heating up fast. This makes the worms in the bin survive for longer.

Through this bin,the worms can convert organic waste into nutrient-rich liquid and castings, which are quality fertilizers for your garden. The castings that come out and the waste that goes into the hungry bin are in opposite ends on this system.  It also comes with a tight-fitting lid which prevents any pests from finding their way into the system. Due to the convenient operating height and its smooth legs, rats cannot get into this worm bin.

You will not have any trouble trying to move this flow through worm bin since it comes with wheels that make it highly portable. The large-diameter wheels also enhance stability during use. Once you buy the Hungry bin flow through worm bin, you should expect a ten-year warranty. It means that the supplier can replace any defective parts without asking you for extra cash.

Continuous Flow Worm Farm – How It Works?

Continuous Flow Worm Farm

Unlike using regular worm bins, utilizing a continuous flow worm farm can help you enjoy the vermicomposting process. This is a commercially made worm bin that is quite large. This system involves feeding composting worms some organic matter through the top part and harvesting the castings at the bottom part.  The vermicomposting system is designed with a bottom tray that allows you to harvest the castings with ease. In this worm bin, the worms can work undisturbed.

The removable trays are designed with some perforated bottoms to enhance upward migration. As you use this flow through worm bin, you can remove the trays from time to time. Using this worm bin can help you separate the worms from castings effortlessly. Using a continuous flow worm farm can help you produce a worm-free harvest.

A continuous flow bin not only requires less labor but is also more efficient. Maintaining constant conditions is also easy with this system. Though such a flow bin can greatly help, you may incur a lot of costs in purchasing it. Even the smallest commercial vermiculture bins cost thousands of dollars. The continuous flow bin lacks mobility. It comes in a bulky design that makes transportation hard.

Here is the most popular Commercial Vermiculture Bin

If you are looking for a continuous flow bin that you can use at home, you should consider the likes of urban worm bag, Hungry bin, or Vermibag. These come in smaller sizes than commercial-scale flow bins. The most common commercial vermiculture bin that is often used in most operations is the Michigan soilworks CFT.

Large Scale Worm Farm Design.

This utilizes precision engineered components and is designed with powder-coated structural steel. The bottom part of this flow through worm bin features galvanized mesh, and it runs using a DC motor. Since it is expandable, you can add more modules to it after some time.

Large Scale Worm Farm Design

Worm farms give you a great opportunity to recycle food scraps and other kitchen waste into fertilizers that you can use in a garden. They come in different sizes and shapes. Before you buy one, you should learn more about its design. Most worm bins have a height of 24 inches from the bottom to the top.

As you compare them, avoid worm bins that are shorter than 51 cm long. Getting a worm that meets at least the minimum height requirements can help you harvest quality vermicompost that does not contain fungi or worms. The market even offers small flow through worm bins that don’t occupy too much space. You don’t even need too much room for this since you can find even a small one that can fit on your balcony.

Apart from the footprint, you should also confirm the capacity of a large-scale worm farm before investing in one. Most of the worm farms have a capacity of up to 360 L. If you need one that can help you process a large amount of food waste, you should choose a commercial worm farm that features a high capacity. Such worm farms are suitable for regions that tend to generate lots of food scraps, such as restaurants, workplaces, and schools.

A worm farm comes with two stacked trays. While the top tray is meant for food scraps and worms, the bottom tray gradually collects the dripping liquid from the top tray. You will also notice a tap on the bottom tray for collecting the liquid. The bottom tray of large-scale commercial worm farms has a linear form of cardboard meant to prevent the worms from falling.

The earthworms live in worm bedding which is often a damp layer of shredded newspaper. This worm bin also comes with a cover that acts as a worm blanket. It works by creating a dark and cool environment for the worms and their food. Since the cover is biodegradable, the cover will break down after a few weeks. Sometimes the design of flow through worm farms differs from one model to the next. Comparing different aspects of a flow through worm bin is therefore important before investing in one.


Instead of always buying fertilizers, you should consider recycling waste to produce natural ones. Flow through worm bins can help you achieve this. Since earthworms are known to be fast composters, they are used in these vermicomposting systems. We have discussed how they work, their advantages and even highlighted some examples to make shopping for one easy.

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