Every morning, millions of people pour coffee grounds and leftover coffee grounds down the sink without thinking about the environmental consequences. Scientists warn that this habit gradually leads to water pollution and harms rivers, lakes and seas.
The most dangerous component of coffee is caffeine. It does not break down quickly and is already considered a new type of pollutant. Studies show that caffeine has been found in more than half of the world's rivers, including remote regions such as Antarctica.
In addition to caffeine, the sugar, milk, and other nutrients in coffee reduce oxygen levels and pH in the water. This encourages excessive algae growth and can kill fish, plants, and microorganisms. Even modern wastewater treatment plants cannot always completely remove caffeine from wastewater, and it ends up back in water supplies, including drinking water.
Experts advise avoiding pouring coffee down the sink or street grates. There are several correct ways to dispose of it:
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Composting: The best option for organic waste. Use compost or special food waste recycling points.
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Fertilizer: Dilute coffee grounds with water and use as a liquid fertilizer. Coffee grounds can be sprinkled on beds or flower beds, but in small portions.
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Trash: If you don't have access to a compost bin, collect the coffee grounds or liquid in a separate container and throw it in your regular trash.
Following these rules will help reduce the negative impact of coffee waste on nature and preserve the purity of water resources.

