Fatbergs: 90% of London restaurants are contributing to problem

Oil and food scraps are finding their way into pipes and drains as majority of eateries have no grease traps

The vast majority of London restaurants and takeaways are responsible for feeding the fatbergs that are choking the capital's sewers, according to survey findings that Thames Water called "staggering".

Ninety per cent of eateries in London are contributing to the problem by failing to install grease traps, the report found. As a result, grease, oil and food scraps washed off plates, utensils and saucepans are finding their way into pipes and drains.