Fat, oil, and grease, commonly referred to as FOG, are among the most frequent causes of blocked drains in UK homes. Whether it is leftover cooking fat from a Sunday roast, used frying oil, or greasy washing-up water, these substances can seem completely harmless when warm and liquid. Once they enter your pipework, however, the consequences can be both costly and disruptive.

How FOG Clogs Your Pipes

When fat, oil, and grease are poured down the sink, they begin to cool almost immediately as they travel through your drainage system. As they cool, they solidify and stick to the inner walls of your pipes. Over time, layer upon layer builds up, gradually narrowing the pipe and eventually causing a full blockage. In more serious cases, FOG can combine with wet wipes and other debris to form a fatberg, a large, rock-hard mass capable of causing significant damage to the wider sewer network. Water UK highlights that fatbergs have a major impact on both sewer infrastructure and the environment.

Common Sources of FOG in the Kitchen

It is not just obvious cooking fats that cause the problem. Common sources of FOG include:

Cooking oils and frying fat
Butter, lard, and margarine
Meat juices and basting liquids
Dairy products such as cream and cheese
Sauces and gravies

How to Dispose of FOG Properly

The simplest and most effective method is to cool it, collect it, and bin it. Allow fat and grease to cool and solidify before scraping it into a sealed container or wrapping it in paper and placing it in your general waste bin. Recycle Now also advises that small amounts of cooking oil can be added to a food waste recycling service if your local council provides one. Using a sink strainer to catch food debris and wiping greasy pans with kitchen roll before washing are other small habits that make a real difference. As Northumbrian Water notes, FOG begins to harden in pipes almost as soon as it enters the system, so prevention is always the best approach.

Already Dealing With a Blocked Drain?

If fat, oil, and grease have already caused a problem in your home, we are here to help. At Elite Drainage Services, we offer a professional drain unblocking service and drain cleaning available 24 hours a day, 7 days a week, with no call-out fee. All costs are discussed before we arrive, so there are never any surprises. We also offer a CCTV drain survey to assess the internal condition of your pipework without the need for any digging, helping us identify the true extent of any FOG buildup quickly and accurately.

Our customers regularly tell us how much they value our straightforward, honest approach. As one recent customer shared: "They discussed rates and the process clearly over the phone. Came and got the job done." Another added: "Very helpful and professional, definitely recommend using this service. Reasonable prices and a great job well done."

Whether you are dealing with a slow-moving drain or a complete blockage, do not wait for the problem to worsen. Get in touch with us today and let our experienced engineers restore your drainage quickly and efficiently. You can also find further guidance in our ultimate drain unblocking guide.