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12 things you should never pour into your sink at the risk of clogging it (or worse)

After a meal or a cleaning session, many people have the annoying habit of dumpting anything and everything into their sink or grinder :food, expired products, cleaning products… Bad reflex! Because our pipelines , which allow wastewater to escape, can quickly be clogged and give off bad odors . Without forgetting of course the environmental risks , in terms of pollution.

Products and foods that should not be put in a sink


To keep a clean and functional sink you have to be careful what you pour down the drain. The fat for example, liquid or solid, is very harmful to our pipes and the environment. It sticks and agglomerates on the walls, which has the effect of clogging and damaging them. The same goes for coffee grounds and flour , we naively think that very small grains are harmless but no. By accumulating they can also clog the evacuation system. Other risks:cleaning products and pesticides . By their composition they should not be eliminated anyhow. Certain terms and instructions are to be taken into account on their label. Clearly, to avoid unpleasant surprises it is better to use the trash and sort of our waste simply.

Discover all the products not to put in a sink in our slideshow.

Also read:

9 super effective tricks to easily unclog a sink without the help of a plumber

21 foods you should (especially) never put in the fridge!

12 things not (especially) to put in the dishwasher