Dealing with fat, oil and grease in your food business


Not dealing with fat, oil and grease in the correct way has a negative impact on health and the environment. It can also cost your business money. However, there are clear steps that you can take to deal with fat, oil and grease effectively.

Businesses have a legal duty to dispose of fat, oil and grease responsibly. If fat, oil and grease from your premises enter the public sewer and contribute to a blockage, NI Water may charge you.

A food business blocking their own drains will face extra costs in clearing and cleaning them. By reducing, reusing and correctly handling fat, oil and grease, you can:

  • reduce purchasing and disposal costs
  • lessen the risk of environmental damage 
  • ensure a safer workplace

This guide describes with the best ways to deal with fat, oil and grease. These include how to reduce and reuse fat, oil and grease in your food business. The guide also covers disposal methods such as using grease traps in your food business and biological dosing systems for fats, oil and grease