How it Works

A revolution in food waste disposal!

The Garbage Guzzler uses aerobic digestion to process food and other organic waste. Bacteria inside the machine is heated until it becomes active and starts digesting waste inside the unit.

Once the digestion process starts, the bacteria produces heat, meaning it is self-sustaining and requires little, if any, energy to keep it at operating temperature. The high temperatures have a sterilising effect on the waste inside.

The bacteria is also self-replicating, and in most cases as long as it is fed a regular source of organic waste there is no need to keep adding new bacteria.

During the digestion process, carbon dioxide and water vapour that is already contained in the food is released. The first time through, waste is reduced by over 70% in volume and leaves an output that can be used as soil improver or biomass fuel.

Alternatively, the output can be put back through the Garbage Guzzler along with new organic waste to reduce it down further.

Repeating this process can reduce waste to virtually nothing.

What Waste Can Go In?

The Garbage Guzzler is an organic waste digester, however requires food waste to work efficiently.  As long as you are putting enough food waste through the machine, then you can also mix it with a range of other organic waste materials. It is recommended that an average mix of 60% wet to 40% dry waste is put into the unit. The mix of waste that can be put through a Garbage Guzzler (providing there is sufficient food waste also being digested) includes:

Food waste

Mix It With

Fat, oil and grease

Cardboard and paper packaging

Cardboard coffee cups


Horticultural waste

The above materials can be digested along with food waste being put through the machine. It is key that food waste is the main material used for the digestion process however.

What Comes Out?

Biomass Fuel

The Garbage Guzzler can be set to create a  digestate biomass fuel, which can be put directly into a biomass boiler. If you have a RHI grant, you may need to mix this fuel with wood pellets to ensure that it burns at the correct temperature levels. If you require biomass  pellets to be created, we can supply you with an additional pelletiser. This is especially useful if you are collecting  digestate from multiple sites and are transporting it to a single biomass boiler.

Soil Improver

Output can be used as a soil improver, which is PAS 100 compliant. Like the digestate biomass, the output produced is rich in composition, but it can be mixed with other materials to make compost. If you are a horticultural organisation, or have large grounds, then producing your own compost presents you with a cost saving compared to buying it in.

Continuous Recycling of Waste

If you are looking to maximise your waste reduction, then simply add the output from the machine to new organic waste being cycled through the process (or leave it in for a longer period of time), and it will reduce down to virtually nothing.

Why a Garbage Guzzler?

The Garbage Guzzler is more than a dewatering system or composter. The output created is useable either as a
biomass fuel or as soil improver.

Water vapour created from the digestion process is clean, free from odour and evaporates into the air. Small amounts of condensate pass into the main drains. The vapour can also be used for providing warmth and irrigation.

Unlike some in-vessel composters, there is no need to mix in any other materials (such as wood pellets or sawdust) to help with the digestion process, unless a particularly wet mix is going through the unit.

The Garbage Guzzler uses an injection of bacteria to speed up the digestion process. This means that output can be created in as little as 24 hours, rather than a number of weeks.

The Garbage Guzzler can take many types of organic waste, and is not just restricted to food waste.

Unlike anaerobic digestion, the Garbage Guzzler does not produce methane. This means there are no specialist handling or safety requirements for the output.

In many cases, there is no need to grind or shred the input before it is put into the machine, although doing so can help to speed up the digestion process.