It's something you've probably done hundreds of times – but according to water companies, you should never pour milk down the sink.
It's not a good feeling when you open your milk bottle for tea or cereal in the morning and smell the sour smell, realizing you should throw it away. In the worst case, you only realize it after taking a sip of your tea and noticing that it tastes sour.
According to Scottish Water, spoiled milk should not be poured down the sink because it can cause problems in household pipes and harm the environment.
The company explains that the fats and proteins in milk can solidify and stick to the walls of pipes, causing blockages. These blockages can lead to bad odors, sewage back-ups, and costly repairs. Additionally, when milk enters the sewer system, it can reduce oxygen levels in the water, harming aquatic life.
What should you do instead?
Scottish Water advises:
Compost – If you have a compost bin, you can add small amounts of milk. It is biodegradable and adds nutrients. Mix it well with other materials to avoid bad odors.
Use as a natural fertilizer – Mix 1 part milk with 4 parts water and pour it around the roots of plants. This helps them grow stronger.
Throw it in the trash – If you have no other option, pour it into a container that closes tightly (like a plastic bottle) and place it in the trash to avoid leaks.
Important warning
-Don't pour it down the sink.
-Don't flush it down the toilet.
Both of these can cause problems with pipes and harm the environment.
