Coffee grounds, which remains from the production of the drink, most often utilized in the trash and remains unclaimed.
However, recent research experts from the United States show that this category of waste may be quite rational use. As evidenced by the results of the experiments, the accumulation of coffee grounds have an interesting structure that can be used as a filter. It turns out that if such a product is passed through water, it is possible to significantly reduce its content of heavy metals and other contaminants.
Most importantly, such a filter is absolutely safe and environmentally friendly. In addition, each year, many shops, restaurants and coffee shops produce millions of tons of coffee grounds, which can be used for other purposes.
In fact, the properties of such coffee grounds has been known for a long time. However, scientists could not manage to separate itself after clearing the midst of the water. Now it has become possible, so this technology is likely to start up mass production.