Tag: grease

Grease Trap Benefits

http://stainlesscateringsupplies.co.uk/Grease Traps For Commercial Kitchens Are Worth Their Weight In Gold

Yes, when you consider what they will save you (provided you clean them regularly)!
1. Fewer clogged drains
2. Fewer nasty smells
3. Lower risk of pest infestation
4. Less chance of disruption to business by the Roads contractors having to dig up the roads to clear a blocked sewer or drain.
5. More pleasant visits from health inspectors when they come to see your kitchen.

Grease traps are not only legally required for commercial food preparation areas in many states and countries but are helpful to the commercial kitchen
manager or owner. Grease traps remove the FOG items (Fat, Oil and Grease) from the grey water after it leaves the dish washing appliances and before it reaches
the external drain.

Do Grease Traps Work?

Yes. There are plenty of videos online that will show you grease traps being installed, tested and cleaned. If you are going to watch a video of a grease trap
that has been in use, beware, the inlet side is not a pretty site. Having said that, the difference between the water coming into the grease trap and that leaving the grease trap after cleaning is striking. And of course, there is always the waste oil to be pumped out and recycled.

There are two types of grease trap: above or below ground. This video shows an above ground grease trap being cleaned. Warning, the inlet side (as with all used grease traps) looks pretty gunky! But compare that with the outlet side – total difference.

Grease Traps For Commercial Kitchens


What Is A Grease Trap?

A grease trap is a appliance that is used to collect and remove solid material and especially fat, oil and grease (FOG’s) that could enter the sewers from your kitchen. They should only have wastewater from kitchens flowing through them. No other wastewater from other drainage system sources, such as toilets, should be allowed. Removing FOGs, can reduce the number of drain blockages you might suffer and also prevent huge fatbergs in the main sewer system, bad smells, disruption in the street and possibly pest infestations. You can find out more about them here.

There are two types of grease trap: above or below ground.

How Does A Grease Trap Work?

When the waste water from your kitchen enters the trap, it flows first through a sediment basket which removes larger solid particles. The grease in the water is less dense (“lighter”) than water and doesn’t mix with it, so it floats to the top (see this diagram).

Grease traps have to be cleaned regularly to remove these FOGS, otherwise, they build-up, and can eventually overflow through the outlet and even back-up through the inlet. Special cleaning materials can be used to reduce or prevent FOG build-up in internal piping. You should check whether these are allowed in your area, before using them. Not all water authorities allow their use.


A large amount of fat, oil and grease (FOG) is produced by commercial kitchens and food establishments in the UK every day. If left untreated or not removed before joining the main sewage system, it can cause major issues with main sewers and a huge amount of disruption to businesses as it is cleared. In the UK, it is a legal requirement to install a suitable grease treatment system for effective FOG removal from wastewater from commercial hot food premises.