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Why do we need a Waste Disposal Unit?

Published on: 16/05/2018 Last Updated: 27/08/2019
Waste Disposal Unit

These units are essential for reducing the organic garbage generated in the kitchen by disposal through the kitchen drain. Therefore, there’s less work involved in physically cleaning up the kitchen of food waste that is generated multiple times a day. These units also work to keep the kitchen free of odours from rotting food. For those who don’t really enjoy composting, opting for such a unit can become your contribution towards the environment.

Types of Garbage Disposal Units

These units work with two types of operation, continuous feed or batch feed. Continuous feed models are most common type and work by feeding in organic waste to the unit after first starting the unit. Batch feed units are first filled with waste and then are electronically started. The units incorporate specialized magnets for shredding food waste and have a quiet and efficient operation, besides being safer due to covered design.

Sometimes, some foreign objects may fall into the unit causing damage, or sometimes the waste may block the drain. Some advanced models come with automatic jam clearing feature that works using the centrifugal principle to clear out minor jams.

Continuous Feed

Once the power is switched on, this unit will start and continue to operate till switch is turned off.


  • This is the better choice when the kitchen produces a large amount of food waste. You don’t have to work with batches as in the Batch feed models.
  • When you have a keep-clean mindset, you can put the unit on while you are preparing food without waiting for the unit to fill up with waste.
  • Continuous feed units are cheaper as compared to the Batch feed ones.


  • Sometimes accidents can happen that can put your safety at risk. Your fingers may get into the unit by accident or another object pay slip inside, damaging the unit.
  • These require cold water to operate and therefore, your water bills may see a rise.

Batch Feed Units

The unit utilizes waste in batches for grinding and disposing-off once the chamber of the unit is full.


  • These units work well when the amount of waste to be disposed-off is significantly low
  • As this unit has a stopper or cover, there is no threat to safety and no possibility of any foreign bodies falling into it and damaging the unit.
  • These are safer as they work by filling the waste into a chamber and covering it before starting the operation. Jams are also unlikely.


  • For households with larger amounts of waste, the Batch Feed type will not be suitable as it will require more time to dispose the same amount of waste than the Continuous Feed type.
  • As you wait for the disposer chamber to fill, accumulated waste can easily start rotting and prove to be an unhealthy and unhygienic practice. These could also attract germs, bacteria, ants and flies.
  • So, do consider the all-important factors of cost, hygiene and safety before you proceed to make a purchase.
Sarabeth Asaff

Reviewed By: Sarabeth Asaff
Sarabeth Asaff is a former kitchen and bathroom designer who now works as a home and garden industry writer and expert. She has a working knowledge of all areas of the home improvement industry, and specializes in functional design and material advice.

Posted by Kylie Wall

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