Thus, the smell of burnt coffee grounds will rid your space of nasty mosquitoes and other unpleasant insects. The smoke that will be released will also help to scare them away since insects generally associate smoke with a danger that must be avoided.

Then grab your coffee grounds to skin the mosquitoes.

How to Burn Coffee Grounds to Keep Mosquitoes Away
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If you are a coffee drinker, you can use used coffee grounds to avoid wasting them. Simply dry them in a bowl covered with aluminum foil. Once completely dry, your coffee grounds are ready to use. Then place your coffee grounds in a container or on a flat surface that can withstand heat. Burn your coffee grounds the same way you burn your incense.

Finally, place the container in the area where you want to keep mosquitoes away, preferably on a side where there is a slight breeze to accentuate the smell. You can also add bay leaves to your coffee grounds for an even more effective repellent effect. If you want to keep mosquitoes away from an outdoor area, do not hesitate to burn several small amounts of coffee grounds in several different corners