Cleaning and plumbing experts have issued a timely warning to UK households: do not pour melted ice cream down the sink during the upcoming heatwave. The Met Office forecasts hot weather returning this weekend, with potential for another heatwave, but the temptation to dispose of melted ice cream down the drain could lead to costly repairs.
Why Melted Ice Cream Is a Drain Danger
Rentokil Specialist Hygiene warns that unwanted fats, oils, and grease—including ice cream—should never be poured down the sink. Many summer staples, such as barbecue grease, marinades, and salad dressings, contain high levels of fat that appear harmless when liquid but rapidly cool and solidify inside pipework. Dairy-based products, combined with sugary residues, encourage bacterial growth and unpleasant odours deep within drainage systems.
Over time, this build-up forms hardened blockages known as fatbergs, restricting wastewater flow. In serious cases, fatbergs can cause sewer backups, burst pipes, flooding, and expensive repair bills. Research commissioned by Initial Washroom Hygiene found that 1 in 10 UK adults believe it is acceptable to pour fats or oils straight down the sink.
Expert Advice for Proper Disposal
Jamie Woodhall, UK Technical and Innovations Manager at Rentokil Specialist Hygiene, comments: “We're a nation that knows how to make the most of the sunshine, but warmer weather can bring some less helpful habits, particularly when it comes to disposing of cooking fats and food residues.”
“The good news is that small changes make a real difference. Letting fats cool and solidify before scraping them into the bin, wiping greasy pans before washing them up, and using a sink strainer are all simple steps that can save households from potentially serious and expensive drainage problems.”
Households are advised to allow melted ice cream and other fatty substances to cool and solidify, then scrape them into the bin. Using a sink strainer can catch food residues, and wiping greasy pans with a paper towel before washing helps prevent fat from entering the pipes.
