What are the health risks associated with sewer backups from FOG?

Sewer backups can expose you to hazardous bacteria like E.Coli and Hepatitis A and E found in wastewater.

How can Northumbrian Water customers prevent sewer blockages?

By avoiding pouring fats, oils, and grease down sinks and using proper disposal methods like grease traps.

Are there safe ways to dispose of cooking grease at home?

Yes, collect grease in sealed containers for rubbish disposal or use a grease trap.

Home / Lifestyle / Grease, Oil, Fat: Dangers Beyond Clogged Pipes

Grease, Oil, Fat: Dangers Beyond Clogged Pipes

24 Nov, 2025

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Summary

Fats, oils, and grease can cause sewer backups, flooding kitchens.
Sewer water contains hazardous bacteria like E.Coli and Hepatitis.
Safe disposal options include grease traps or sealed waste containers.

Grease, Oil, Fat: Dangers Beyond Clogged Pipes

Pouring fats, oils, and grease (FOG) down household sinks presents significant risks extending beyond simple pipe blockages. When these substances enter the sewer system, they can accumulate and cause severe sewer backups, potentially leading to wastewater flooding back into kitchens.

Such sewer backups can cause substantial damage to kitchen structures and spread hazardous waste. The contaminated water may contain dangerous bacteria, including E.Coli and Hepatitis A and E, posing a serious health risk to residents. Preventing these issues requires conscious disposal habits.

Safe disposal methods for FOG include utilizing grease traps, which capture the waste before it enters the drainage system, or collecting FOG in separate, securely sealed containers for disposal with regular rubbish. Pouring FOG down toilets is also strongly discouraged as it contributes to broader sewer system problems.