Coffee grounds can also save the planet! Treatment and efficacy of coffee grounds. What are the uses of coffee grounds?

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A cup of coffee every morning is the source of energy to awaken the day! Nowadays, many people are coffee-controlled and even feel uncomfortable without drinking coffee all day, but the rest of the coffee grounds are usually abandoned, but don't underestimate the coffee grounds.

You know-- coffee grounds can also save the earth! We all know that greenhouse gases are responsible for global warming. The main greenhouse gases that cause global warming are carbon dioxide (Carbon Dioxide, CO2), methane (Methane, CH4), nitrous oxide (nitrous oxide, commonly known as nitrous oxide, N2O), and fluorinated gases (Fluorinated gases, F-gases). So how to reduce greenhouse gases in the environment has always been the goal of scientists.

In addition to working on "energy conservation and carbon reduction", scientists also hope to "collect" greenhouse gases. The South Korean research team found that the product of mixing coffee grounds with sodium hydroxide (sodium hydroxide, NaOH) and heating to 700-900C can absorb and store methane in the atmosphere (Methane, CH4). Coffee grounds are converted into carbon-trapping materials that can become a stable "greenhouse gas reservoir" in about a day. This greenhouse gas reservoir can not only reduce greenhouse gases in the environment, but also store methane as a clean biomass energy to replace traditional fossil fuels. Coffee grounds is a free and environmentally friendly material compared to activated carbon made from other metals and precious organic chemicals.

In addition to turning it into a "greenhouse gas reservoir", a team of researchers from the coffee country of Italy have also found that coffee grounds can "purify polluted water"! The researchers mixed coffee grounds with porous foaming materials to make a sponge-like coffee grounds filter brick. The results show that 99% of lead and mercury ions can be removed by putting the filter brick into tap water, while 50% to 60% of lead ions can still be removed in flowing water or water with high concentrations of heavy metals. Why can coffee grounds filter bricks purify water? The reason is that coffee contains fatty acids, polyphenols and other ingredients, and activated carbon has the same water purification effect! The purification efficiency of coffee grounds filter brick is about the same as that of most commercial filters.

After reading the utility of coffee grounds introduced by the editor, do you take a different look at coffee grounds? As the saying goes, small dregs can also make great achievements-in fact, coffee grounds have many functions and uses in agriculture, business and daily life.

First of all, the editor wants to introduce the treatment of coffee grounds-coffee grounds must be dried! If it's not dried, it's easy to get moldy-you can put the coffee grounds on the balcony to dry, or if you don't want to wait that long, you can stir-fry the coffee grounds in a pan until dry, or put the coffee grounds on a plate and dry them out. Put it in the microwave oven for about a minute and use it when you see the coffee grounds turn light. (tip: during heating, you need to stir the coffee grounds at the bottom occasionally to let the moisture evaporate evenly. )

After learning the preservation of coffee grounds, let's start to understand the function of coffee grounds.

Daily life:

In the process of making coffee beans, baking causes many pores to be formed inside. Like activated carbon (Activated Carbon), these pores absorb moisture and remove unpleasant odors.

Coffee grounds can be put into containers, cotton filter bags, gauze or old socks, put in the refrigerator to remove the taste of food mixed together, can also be put in toilets, wardrobes and shoe cabinets have a good deodorant effect! The editor suggests that it is best to change it every two or three days to avoid mildew after absorbing moisture.

In addition, when chopping garlic, chopping onions, handling raw meat or cooking seafood, do you have an annoying pungent and fishy smell on your hands? At this time, as long as a small amount of coffee grounds and hand-washing milk are mixed and scrubbed on your hands, these smells can be easily removed.

As there is a certain amount of oil in the coffee grounds to prevent rust, it can be used to wipe the brass, or DIY can make a simple needle bag, which not only makes the needle less rusty, but also makes it easier to sew clothes.

If you want to maintain the wooden floor, you can also-- as long as you put the sun-dried coffee dregs into silk stockings or gauze, wipe the floor in the way of drawing a circle, so that the floor has luster and achieve the effect of waxing, or you can wipe it directly on leather shoes. leather shoes will take on a new look and sparkle!

Agricultural cultivation:

A study from Ohio State University in the United States points out that coffee grounds contain about 2% nitrogen, which can provide the energy needed by bacteria and convert organic matter into nitrogen fertilizer. As long as the coffee grounds (dry or wet) are laid on the top layer of the soil and let it decompose itself, nutrients can be provided to the plant. However, if you grow a lot of crops, it is not enough to rely on coffee grounds as fertilizer. There may be a lack of potash in the long run, so other fertilizers are still needed.

In addition, coffee grounds contain alkaloids, which can be used as natural pesticides! First, dry and grind the coffee grounds, then add water to reboil the caffeine to dissolve, then cool it and put it in a spray bottle. It can be sprayed on any insect-infested place on the plant, which has an insect-repellent effect. It can be sprayed once every two or three days.

Commercial use:

In addition to the applications in daily life and agriculture, at present, some merchants find business opportunities in coffee grounds. Not only can coffee grounds be made into tables, chairs, dinner plates, notebooks, and other commodities, but also clothing manufacturers have taken a fancy to the deodorization and moisture absorption functions of coffee grounds, making them nano-sized to produce a variety of sweat-emitting clothing, such as clothes and socks. The emergence of these products, so that coffee grounds to create a second life!

Did you not expect that there are so many super-practical uses for coffee grounds-remember that the next time you finish brewing coffee, don't throw it away!

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