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Store the coffee spray mixture in the refrigerator for up to 1 week.
Always shake well before each use, as the coffee grounds may settle.
Make small fresh batches weekly for best results.
Variations:
For extra strength: Add a few drops of essential oils like eucalyptus, citronella, or lavender.
For broader insect control: Mix in a pinch of cinnamon powder, which repels ants and flies too.
Dry method: Simply scatter used coffee grounds around outdoor sitting areas — no water needed!
FAQ:
Q: Why does coffee repel mosquitoes?
A: The strong smell of coffee, especially when burned or soaked, disrupts mosquitoes' scent receptors, making it harder for them to locate humans.
Q: Can I use this repellent indoors?
A: Yes! It’s safe for indoor use, but avoid spraying on light fabrics as it may stain.
Q: How long does the repellent effect last?
A: Outdoors, it may last a few hours depending on weather. Indoors, it can be effective for several days, especially when refreshed daily.
Q: Is this safe for pets and children?
A: Generally yes, but keep coffee grounds out of reach of pets (especially dogs) as ingestion can be harmful.
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