Households across the UK have been warned against pouring leftover milk down the sink, as experts highlight the potential damage to plumbing and the environment. Scottish Water has issued guidance urging people to avoid this common practice.
According to a spokesperson for Scottish Water, disposing of old milk by pouring it down the kitchen sink can lead to serious problems. The fats and proteins in milk can solidify and stick to pipe walls, causing blockages that may result in costly repairs and unpleasant odours.
Furthermore, when milk enters the sewage system, it can deplete oxygen levels in the water, harming aquatic life. The organisation also cautioned against flushing milk down the toilet, noting that this can also cause plumbing issues and is not environmentally friendly.
Scottish Water advises following simple tips to dispose of old milk safely, though the specific methods were not detailed in the guidance. The warning comes as a reminder that even small amounts of milk can contribute to blockages and environmental harm.



