Knowing what to do with waste fats, oil and grease (FOG) has always been a challenge, but now you can benefit from free collection services with help from J & H Bunn. Bunns produce the Biodiesel from sustainable sources of Used Vegetable Oil, also known as FOG - fats, oils or grease. The free FOG disposal service for local caterers helps limit the damage caused by fats, oils and grease in the sewer and reduce our carbon footprint. The Biodiesel Partnership is supported by Anglian Water and the Chartered Institute of Environmental Health.