If you have looked into legal ways to dispose of used cooking oil from your commercial kitchen, you have almost certainly come across waste oil collection services. Companies like Olleco and Quatra offer to collect your used cooking oil on a scheduled basis and process it into biodiesel. In some cases they even pay you for the oil.
It sounds like the perfect solution. Someone comes to your kitchen, takes the problem away, and you get paid for it. So why are the vast majority of independent UK food businesses still disposing of oil illegally?
The answer is that waste oil collection works brilliantly for some businesses — and not at all for others. Understanding which category your kitchen falls into is essential before you decide how to manage your oil disposal.
How waste oil collection actually works
A waste oil collector provides your kitchen with a sealed storage drum — typically between 200 and 1,000 litres capacity — which sits in your kitchen or yard. As you change your fryer oil you pour the used oil into the drum rather than disposing of it immediately. When the drum is full, or on a prearranged schedule, the collector visits your premises, pumps out the oil and replaces it with a clean empty drum.
The collected oil is taken to a processing facility where it is filtered, tested and refined into Hydrotreated Vegetable Oil (HVO) or biodiesel — a renewable fuel used in transport and heating. Because used cooking oil is a valuable feedstock for renewable fuel production, collectors can sometimes offer payment for the oil they collect.
Every collection must be accompanied by a waste transfer note — a legal document confirming that the oil has been handed to a licensed waste carrier. You are legally required to keep waste transfer notes for a minimum of two years and must be able to produce them if requested by an Environmental Health officer or waste regulation authority.
Who collection services work well for
Waste oil collection is an excellent solution for food businesses that generate large, consistent volumes of used cooking oil.
A busy fish and chip shop that changes its fryer oil daily and operates multiple large fryers might generate 50 to 100 litres of used oil per week — enough to fill a collection drum within two to three weeks and make regular scheduled collections economically viable for both parties.
Large restaurant groups, hotel kitchens, hospital catering operations, school kitchen facilities and fast-food chains all generate the volumes that make collection services work well. For these businesses a collection contract is a sensible, cost-effective and legally compliant solution.
Some collectors will also pay for the oil — typically between £0.10 and £0.30 per litre depending on the quality and current market rates for used cooking oil as a renewable fuel feedstock. For a kitchen generating 200 litres of used oil per month this represents a modest but meaningful income stream.
Who collection services do not work for
Here is where the reality diverges from the marketing. Waste oil collection is simply not viable for the majority of independent UK food businesses — and this is why 88% of UK commercial kitchens currently have no formal oil disposal system in place.
The economics of collection only work when a kitchen generates enough oil to justify the cost of a collection vehicle visiting the premises. Most independent takeaways, small kebab shops, cafes, small pub kitchens and similar operations simply do not generate sufficient volume.
A small kebab shop with one fryer changing oil twice a week generates approximately 20 to 30 litres of used oil per week. At that rate it would take six to eight weeks to fill a 200-litre collection drum. Many collectors will not service accounts that require visits less frequently than once a month — and some have minimum volume thresholds of 200 litres per collection visit that smaller operations cannot meet.
Even where collection is technically available to smaller kitchens, the economics often do not work in the business's favour. Collection fees for low-volume accounts can range from £30 to £80 per visit — meaning the kitchen is paying for the collection rather than receiving payment for the oil. For a small takeaway this represents a significant recurring cost for a service that only solves part of the problem.
The gap that collection services leave
Even for businesses that do have a waste oil collection contract there is a critical gap that collection alone does not solve.
A collection drum sits in your kitchen or yard and is emptied on a schedule — weekly, fortnightly or monthly. But your fryers need to be changed more frequently than that. Between collection visits you are still dealing with used oil that needs to go somewhere.
If the collection drum is full between visits, where does the oil go? If you change a smaller fryer or do a partial oil change that does not fill the drum, how do you dispose of the residual? These between-collection oil changes are where most of the illegal drain disposal actually happens — even in kitchens that nominally have a collection contract.
This is the gap that collection services were never designed to fill — and it is precisely the gap that Fry Block addresses.
The coverage problem
Olleco, the UK's largest waste cooking oil collector, serves approximately 50,000 food businesses nationally. With over 150,000 registered commercial food premises in the UK that means at least 100,000 food businesses — two thirds of the total — have no formal collection arrangement at all.
Collector coverage is heavily concentrated around major urban centres and high-density food business areas. Rural and suburban independent food businesses are significantly less likely to have collection services available simply because the economics of routing collection vehicles to lower-density areas do not work for the collectors.
If your kitchen is in a suburban or rural location, the chances are that no major collector will service your premises regardless of your oil volume. You need a different solution.
How Fry Block solves the problem collection leaves behind
Fry Block works in two different ways depending on your situation.
If you already have a waste oil collection contract, Fry Block handles the between-collection oil changes — the top-up fryer changes, the partial changes, the oil from a smaller second fryer. Nothing goes down the drain. Nothing sits in unsafe containers waiting for the next collection. Every oil change is dealt with cleanly, legally and immediately.
If you do not have a collection contract — because your volume is too low, because collectors do not service your area, or because the economics do not work — Fry Block is a complete standalone solution for your fryer oil disposal. The solid blocks go in your trade waste bin. You are legally compliant without needing a collection drum, a scheduled visit or a waste transfer note process.
Fry Block costs from £27 per month delivered to your kitchen door. There is no minimum volume. There is no collection schedule to manage. There is no drum taking up space in your kitchen or yard. And unlike a collection service, Fry Block works for every oil change, every time, regardless of how much or how little oil your kitchen produces.
What to do next
If you are currently disposing of used cooking oil informally — pouring it down the drain, storing it in containers with no clear disposal plan, or hoping nobody notices — you are breaking the law under Section 111 of the Water Industry Act 1991.
The solution does not have to be expensive or complicated. Request your free 200g trade sample at fryblock.co.uk and try it in your kitchen before committing to anything. It takes two minutes at end of service and costs less than £1.40 per oil change on a monthly subscription.