If you want to kill mosquitoes naturally and effectively, drink coffee.


As the warm weather approaches, so does the buzzing nuisance of mosquitoes. These tiny insects not only disrupt our outdoor activities but also pose health risks with their bites. While there are numerous mosquito repellents available, many of them contain chemicals that we might not want to expose ourselves to regularly. Fortunately, there’s a natural solution that lies right in our kitchen cabinets – coffee. In this comprehensive guide, we will explore how coffee can be effectively used to repel mosquitoes both indoors and outdoors.

Understanding the Mosquito Problem:

Mosquitoes are not just annoying pests; they can also transmit diseases like malaria, dengue fever, and Zika virus. They are attracted to moisture and the scent of human skin, making outdoor gatherings and even peaceful evenings in the garden a target for their relentless attacks. Traditional mosquito repellents often contain chemicals that may not be suitable for prolonged use, especially for those with sensitive skin or respiratory issues. Therefore, finding a natural and safe alternative is imperative for many households.

The Power of Coffee as a Mosquito Repellent:

Surprisingly, coffee grounds, a staple in most kitchens, can serve as an effective mosquito repellent. Research conducted since 2003 has confirmed its efficacy, and it comes highly recommended by reputable organizations like the American Environmental Protection Agency (EPA). Unlike chemical repellents, coffee is natural, easily accessible, and cost-effective.

Utilizing Coffee Grounds for Mosquito Repellent:

Here’s a simple method to harness the full repelling potential of coffee grounds:

  1. Spread coffee grounds on a foil-lined plate and let them dry completely in a cool, dry area.
  2. Once dried, place the plate on a table or balcony where you want to repel mosquitoes.
  3. Ignite the coffee grounds, and they will slowly emit smoke, effectively driving mosquitoes away.

This method is not only environmentally friendly but also adds a pleasant aroma to your outdoor space, unlike the harsh chemical smell of conventional repellents.

Repelling Mosquitoes Indoors:

Mosquitoes are not limited to outdoor spaces; they can also invade our homes, especially during the warmer months. To keep them at bay indoors, consider incorporating coffee into your household routine:

  1. Place small bowls of coffee grounds in areas where mosquitoes are likely to enter, such as near windows and doors.
  2. Alternatively, brew a pot of strong coffee and allow it to cool. Transfer the coffee to a spray bottle and lightly mist it around your home, focusing on entry points and dark corners where mosquitoes may hide.
  3. Refresh the coffee grounds or spray as needed to maintain effectiveness.

By integrating coffee into your indoor mosquito control strategy, you can create a safer and more inviting environment for you and your family.


In conclusion, coffee presents a natural and effective solution for repelling mosquitoes both indoors and outdoors. Its availability, affordability, and proven efficacy make it a preferable choice for those seeking alternatives to chemical repellents. By harnessing the power of coffee grounds, you can enjoy your outdoor activities and peaceful evenings without the nuisance of mosquitoes. So, the next time you brew a pot of coffee, remember its dual purpose – not just as a morning pick-me-up but also as a potent mosquito repellent. Say goodbye to pesky mosquito bites and hello to a more enjoyable outdoor experience with the power of coffee.

image source : Barbara O’Neill Lectures