If you are also a coffee lover, then do not throw away the coffee grounds after brewing coffee every day. You can use them to absorb formaldehyde, repel insects, cook, and plant flowers. You will regret it after throwing them away!

1. Plant fertilizer

Those who grow flowers at home can use coffee grounds as plant fertilizer. Coffee grounds can be added directly to the soil. It is especially suitable for plants that like acidic soil, such as rhododendrons and roses. Coffee is rich in nitrogen, calcium, magnesium, potassium and other trace elements. Sprinkling a thin layer of coffee grounds on the soil can slowly release these minerals into the plants.

In addition, coffee grounds are also a good insect repellent. Coffee has a very strong smell that many insects and animals don’t like. Mosquitoes, ants, and maggots don’t like the acidity in coffee and will stay away from acidic soil areas.

2. Cat and dog repellent

If your neighbor's cats and dogs always run into your garden, sprinkle some coffee grounds to keep these animals away. Mix used coffee grounds with orange peels (or other citrus peels) and sprinkle them around the garden to effectively deter cats and dogs. Placing them in the corners of the wall can also eliminate various cockroach pests.

3. Air freshener

Coffee grounds can be made into air fresheners. After drying the coffee grounds, put them in a small cloth bag and place it in your home or bathroom to effectively remove odors from the air.

4. Olfactory Restoration Agent

Some department stores will put a small dish of coffee grounds (or even better, coffee beans) on the perfume counter to "clean your sense of smell." When you are experiencing different perfume samples, it is difficult to distinguish one scent from another, and the strong smell of coffee beans can stimulate different areas of the sense of smell, providing a more sensitive smell for the next perfume you want to smell.

5. Refrigerator deodorizer

Coffee grounds can help reduce odors and food smells in your refrigerator, such as onions or other smelly foods. Drying the coffee grounds or using coffee powder directly, putting them in a small cloth bag and putting them in the refrigerator can help absorb some of the strong food odors in the refrigerator and also emit a pleasant coffee aroma.

6. Can be used for coffee roasting

However, it is best to use coffee powder. Spread the coffee powder and other seasonings on the barbecue, marinate for a few hours and then roast it. The barbecue will have a unique coffee aroma.

7. Dye

Coffee grounds can also be used as dyes to give fabrics and wood surfaces an antique look. Fabrics can be soaked in coffee powder and water to get different tones depending on the amount of coffee powder and soaking time. Wood can also be used to repair scratches on furniture by applying it directly to the wood surface with your hands or a paintbrush.

8. Paints

Many artists and craftsmen have used coffee as a “paint” for many years, and you can also use coffee grounds to add glue to make some collages.

9. Cleaning agents

Coffee grounds can be used to wash hair, hands, bathe and clean kitchen utensils. They can clean the keratin in the skin very well. They can also be made into coffee soap. There is a brand called "Doushu" that uses coffee powder and coffee grounds to make soap, lipstick and other products, which are quite good.

10. Breath freshener

Coffee beans can also be used as chewing gum. If you can’t find chewing gum, you can try putting a coffee bean in your mouth. After sucking on it for a while, your speech will smell like coffee.

11. Put it in the ashtray

Put coffee grounds directly into the ashtray as filler, and place it at home to serve as an air freshener.

12. Coffee fortune telling

If the coffee is brewed in a Turkish coffee pot, you can tell fortunes based on the shape of the coffee grounds after drinking it. I don't know how to do this, but if you're interested, you can look for relevant information.