Cleaning and plumbing experts have issued a timely warning as the UK braces for record temperatures this week: never pour melted ice cream down the sink or drain. The Met Office forecasts highs of 38°C, with heat health warnings in place until at least Thursday.
Why Melted Ice Cream Is a Danger to Drains
Rentokil Specialist Hygiene is urging households to avoid disposing of any unwanted fats, oils, and grease — including ice cream — down the sink. While melted ice cream may seem harmless in liquid form, it can rapidly cool and solidify inside pipework, leading to costly drain blockages and sewer disruption.
The warning also covers barbecue grease, marinades, and salad dressings. Many summer staples contain high levels of fat that, once cooled, form hardened blockages known as fatbergs. These restrict wastewater flow and, in serious cases, cause sewer backups, burst pipes, flooding, and expensive repair bills.
Dairy and Sugar: A Recipe for Bacterial Growth
Dairy-based products combined with sugary residues can encourage bacterial growth and unpleasant odours deep within drainage systems. Over time, this build-up can create significant plumbing issues.
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, suggesting the problem may be widespread.
Expert Advice: Simple Steps to Protect Your Pipes
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.”
